making sure any outstanding updates are committed

This reverts commit 86ae1ddb2f.

README.md

@@ -1,236 +1,3 @@
-#NOTICE
-----------------------------------------------------------------------------
-- Now Release Version 1.20 on my blog (http://www.hamskey.com)
-- You can download and compiled hex file and uBITX Manager application on release section (https://github.com/phdlee/ubitx/releases)
-- For more information, see my blog (http://www.hamskey.com)
+# ubitx-v5x
 
-http://www.hamskey.com
-
-Ian KD8CEC
-kd8cec@gmail.com
-
-#uBITX
-uBITX firmware, written for the Raduino/Arduino control of uBITX transceivers
-This project is based on https://github.com/afarhan/ubitx and all copyright is inherited.
-The copyright information of the original is below.
-
-KD8CEC
-----------------------------------------------------------------------------
-Prepared or finished tasks for the next version
-  - Add TTS module
-  - Direct control for Student
-  
-----------------------------------------------------------------------------
-## REVISION RECORD
-1.20
- - Support uBITX V5
- - Change to SDR Frequency (Remove just RTL-SDR's error Frequency (2390Hz))
-1.12
- - Support Custom LPF Control
- - Other Minor Bugs
-1.1
- - Support Nextion LCD, TJC LCD
- - Read & Backup uBITX, ADC Monitoring, ATT, IF-Shift and more on Nextion LCD (TJC LCD)
- - Factory Reset (Both Character LCD and Nextion LCD are applicable)
- - Support Signal Meter using ADC (A7 Port)
- - Supoort I2C Signal Meter
- - Spectrum
- - Band Scan
- - Memory Control on Nextion LCD (TJC LCD)
- - Speed Change CW-Option on Nextion LCD
- - Fixed Band Change Bug (Both Character LCD and Nextion LCD are applicable)
- - uBITX Manager removed the Encode and Decode buttons. The procedure has become a bit easier.
- - I2C Device Scan on uBITX Manager ( Both Character LCD and Nextion LCD are applicable)
- - Si5351 I2C Address can be changed
- - Recovery using QR-Code Data from Server
- - Nextion LCD and TJC LCD can display Spectrum and CW Decode (using Stand alone S-Meter)
- - Other Minor Bugs
- 
-1.09 (Beta)
-- include 1.094 beta, 1.095 beta, 1.097 beta
-
-1.08
- - Receive performance is improved compared to the original firmware or version 1.061
- - ATT function has been added to reduce RF gain (Shift 45Mhz IF)
- - Added the ability to connect SDR. (Low cost RTL-SDR available)
- - Added a protocol to ADC Monitoring in CAT communications
- - Various LCD support, 16x02 Parallel LCD - It is the LCD equipped with uBITX, 16x02 I2C LCD, 20x04 Parallel LCD, 20x04 I2C LCD, 16x02 I2C Dual LCD
- - Added Extended Switch Support
- - Support S Meter
- - Added S-Meter setting assistant to uBITX Manager
- - Add recovery mode (such as Factory Reset)
- - There have been many other improvements and fixes. More information is available on the blog. (http://www.hamskey.com)
-
-1.07 (Beta)
- - include 1.071 beta, 1.073 beta, 1.075 beta
- - Features implemented in the beta version have been applied to Version 1.08 above.
-
-1.061
- - Added WSPR
-   You only need uBITX to use WSPR. No external devices are required.
-   Added Si5351 module for WSPR
- - Update uBITX Manager to Version 1.0
- - Reduce program size
-   for WSPR
-   for other Module
- - Fixed IF Shift Bug
-   Disable IF Shift on TX
-   IF shift available in USB mode
-   Fixed cat routine in IF Shift setup
-- Bugs fixed
-   cw start delay option
-   Auto key Bug
-   (found bug : LZ1LDO)
-   Message selection when Auto Key is used in RIT mode
-   (found bug : gerald)
-- Improve CW Keying (start TX)
-
-1.05
- - include 1.05W, 1.051, 1.051W
- - for WSPR Beta Test Version
-
-1.04
-  - Optimized from Version1.03
-  - Reduce program size (97% -> 95%)
-  
-1.03
-  - Change eBFO Calibration Step (50 to 5)
-  - Change CW Frequency Display type
-  
-1.02
-  - Applied CW Start Delay to New CW Key logic (This is my mistake when applying the new CW Key Logic.Since uBITX operations are not significantly affected, this does not create a separate Release, It will be reflected in the next release.) - complete
-  - Modified CW Key Logic for Auto Key, (available AutoKey function by any cw keytype) - complete
-  - reduce cpu use usage (working)
-  - reduce (working)
-
-1.01
-  - Fixed Cat problem with (IAMBIC A or B Selected)
-1.0 
-  - rename 0.30 to 1.0
-  
-0.35
-  - vfo to channel bug fixed (not saved mode -> fixed, channel has frequency and mode)
-  - add Channel tag (ch.1 ~ 10) by uBITX Manager
-  - add VFO to Channel, Channel To VFO
-  
-0.34
-  - TX Status check in auto Keysend logic
-  - optimize codes
-  - change default tune step size, and fixed bug
-  - change IF shift step (1Hz -> 50Hz)
-  
-0.33
-  - Added CWL, CWU Mode, (dont complete test yet)
-  - fixed VFO changed bug.
-  - Added Additional BFO for CWL, CWL
-  - Added IF Shift
-  - Change confirmation key PTT -> function key (not critical menus)
-  - Change CW Key Select type, (toggle -> select by dial)
-  
-0.32
-  - Added function Scroll Frequencty on upper line
-  - Added Example code for Draw meter and remarked (you can see and use this code in source codes)
-  - Added Split function, just toggle VFOs when TX/RX
-
-0.31
-  - Fixed CW ADC Range error
-  - Display Message on Upper Line (anothor VFO Frequency, Tune Step, Selected Key Type)
-
-0.30
- - implemented the function to monitor the value of all analog inputs. This allows you to monitor the status of the CW keys connected to your uBITX. 
- - possible to set the ADC range for CW Keying. If no setting is made, it will have the same range as the original code. If you set the CW Keying ADC Values using uBITX Manager 0.3, you can reduce the key error.
- - Added the function to select Straight Key, IAMBICA, IAMBICB key from the menu.
- - default Band select is Ham Band mode, if you want common type, long press function key at band select menu, uBITX Manager can be used to modify frequencies to suit your country.
-
-0.29
- - Remove the use of initialization values in BFO settings - using crruent value, if factory reset
- - Select Tune Step, default 0, 20, 50, 100, 200, Use the uBITX Manager to set the steps value you want. You can select Step by pressing and holding the Function Key (1sec ~ 2sec).
- - Modify Dial Lock Function, Press the Function key for more than 3 seconds to toggle dial lock.
- - created a new frequency tune method. remove original source codes, Threshold has been applied to reduce malfunction. checked the continuity of the user operating to make natural tune possible.
- - stabilize and remove many warning messages - by Pullrequest and merge
- - Changed cw keying method. removed the original code and applied Ron's code and Improved compatibility with original hardware and CAT commnication. It can be used without modification of hardware.
- 
-0.28
- - Fixed CAT problem with hamlib on Linux
- - restore Protocol autorecovery logic
-
-0.27 
-   (First alpha test version, This will be renamed to the major version 1.0)
- - Dual VFO Dial Lock (vfoA Dial lock)
- - Support Ham band on uBITX
-   default Hamband is regeion1 but customize by uBITX Manager Software
- - Advanced ham band options (Tx control) for use in all countries. You can adjust it yourself.   
- - Convenience of band movement
-
-0.26
-  - only Beta tester released & source code share
-  - find a bug on none initial eeprom uBITX - Fixed (Check -> initialized & compatible original source code)
-  - change the version number 0.26 -> 0.27
-  - Prevent overflow bugs
-  - bug with linux based Hamlib (raspberry pi), It was perfect for the 0.224 version, but there was a problem for the 0.25 version.  
-    On Windows, ham deluxe, wsjt-x, jt65-hf, and fldigi were successfully run. Problem with Raspberry pi.
-
-0.25
-  - Beta Version Released
-    http://www.hamskey.com/2018/01/release-beta-version-of-cat-support.html
-  - Added CAT Protocol for uBITX
-  - Modified the default usb carrier value used when the setting is wrong.
-  - Fixed a routine to repair when the CAT protocol was interrupted.
-
-0.24
-  - Program optimization
-    reduce usage ram rate (string with M() optins)
-  - Optimized CAT protocol for wsjt-x, fldigi
-
-0.23
-  - added delay_background() , replace almost delay() to delay_background for prevent timeout
-  - cat library compatible with FT-817 Command 
-    switch VFOA / VFOB, 
-    Read Write CW Speed
-    Read Write CW Delay Time
-    Read Write CW Pitch (with sidetone)
-    All of these can be controlled by Hamradio deluxe.
-
-  - modified cat libray function for protocol for CAT communication is not broken in CW or TX mode
-  - Ability to change CW Delay
-  - Added Dial Lock function
-  - Add functions CW Start dely (TX -> CW interval)
-  - Automatic storage of VFO frequency
-    It was implemented by storing it only once when the frequency stays 10 seconds or more after the change.
-    (protect eeprom life)
-
-  
-0.22
-  - fixed screen Update Problem
-  - Frequency Display Problem - Problems occur below 1Mhz
-  - added function Enhanced CAT communication
-  - replace ubitx_cat.ino to cat_libs.ino
-  - Save mode when switching to VFOA / VFOB
-
-
-0.21
-  - fixed the cw side tone configuration.
-  - Fix the error that the frequency is over.
-  - fixed frequency display (alignment, point) 
-
-
-0.20 
-  - original uBITX software (Ashhar Farhan)
-
-## Original README.md
-uBITX firmware, written for the Raduino/Arduino control of uBITX transceigers
-
-Copyright (C) 2017,  Ashhar Farhan
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"Extended" version of the uBITX v5, including both a Teensy-based DSP as well as a Nextion 3.2" display.

Raduino/Raduino.ino

@@ -122,7 +122,8 @@ char vfoActive = VFO_A;
 int8_t meter_reading = 0; // a -1 on meter makes it invisible
 unsigned long vfoA=7150000L, vfoB=14200000L, sideTone=800, usbCarrier, cwmCarrier;
 unsigned long vfoA_eeprom, vfoB_eeprom; //for protect eeprom life
-unsigned long frequency, ritRxFrequency, ritTxFrequency;  //frequency is the current frequency on the dial
+unsigned long frequency;
+unsigned long ritRxFrequency, ritTxFrequency;  //frequency is the current frequency on the dial
 
 unsigned int cwSpeed = 100; //this is actuall the dot period in milliseconds
 extern int32_t calibration;
@@ -316,6 +317,17 @@ unsigned long delayBeforeTime = 0;
 byte delay_background(unsigned delayTime, byte fromType){ //fromType : 4 autoCWKey -> Check Paddle
   delayBeforeTime = millis();
 
+  /*
+   * KC4UPR - IOP review, 2020-05-03
+   * 
+   * I don't see anything in here that is either important to, or will adversely affect, IOP 
+   * operation.  I'm not planning on using the uBITX autokeyer (since all keying will be in the
+   * IOP), so neither getPaddle() nor autoSendPTTCheck() will be issues.  I do need to look into
+   * overall CAT operation, in general.
+   * 
+   * UPDATE:  Fixed getPaddle() to be compatible.
+   */
+
   while (millis() - delayBeforeTime <= delayTime) {
 
     if (fromType == 4)
@@ -325,14 +337,14 @@ byte delay_background(unsigned delayTime, byte fromType){ //fromType : 4 autoCWK
         return 1;
         
       //Check PTT while auto Sending
-      autoSendPTTCheck();
+      //autoSendPTTCheck();
       
-      Check_Cat(3);
+      //Check_Cat(3);
     }
     else
     {
       //Background Work      
-      Check_Cat(fromType);
+      //Check_Cat(fromType);
     }
   }
 
@@ -678,6 +690,10 @@ void ritDisable(){
  */
 
 void checkPTT(){  
+  /*
+   * KC4UPR - note that some of this is superfluous now that checkPTT() is only executed
+   * in SSB mode, and cwKeyer is only executed in CW mode...
+   */
   //we don't check for ptt when transmitting cw
   if (cwTimeout > 0)
     return;
@@ -790,7 +806,7 @@ void checkButton(){
   //wait for the button to go up again
   while(keyStatus == getBtnStatus()) {
     delay(10);
-    Check_Cat(0);
+    //Check_Cat(0);
   }
   //delay(50);//debounce
 }
@@ -809,7 +825,7 @@ void checkButton(){
   //wait for the button to go up again
   while(btnDown()) {
     delay(10);
-    Check_Cat(0);
+    //Check_Cat(0);
   }
   //delay(50);//debounce
 }
@@ -1386,7 +1402,8 @@ void setup()
   //printLineF(1, FIRMWARE_VERSION_INFO);
   DisplayVersionInfo(FIRMWARE_VERSION_INFO);
 
-  Init_Cat(38400, SERIAL_8N1);
+  //Init_Cat(38400, SERIAL_8N1);
+  Serial.begin(38400);
   initSettings();
   initPorts();     
 
@@ -1432,6 +1449,7 @@ void setup()
     factory_alignment();
 #endif
 
+  rigState.begin();
 }
 
 //Auto save Frequency and Mode with Protected eeprom life by KD8CEC
@@ -1459,15 +1477,35 @@ void checkAutoSaveFreqMode()
 }
 
 void loop(){ 
-  if (isCWAutoMode == 0){  //when CW AutoKey Mode, disable this process
-    if (!txCAT)
+  /*
+   * KC4UPR - IOP update, 2020-05-03
+   * 
+   * Getting rid of the autokeyer code... not planning on using, since any autokeying
+   * would actually be done by the IOP.  We'll check the PTT, but only in SSB mode
+   * (same line as CW, so it would be caught by cwKeyer() in CW mode).
+   * 
+   * Only check the CW keyer if we are in one of the CW modes.  Why?  Because we
+   * are using the same input for PTT and CW.
+   */
+//  if (isCWAutoMode == 0){  //when CW AutoKey Mode, disable this process
+//    if (!txCAT)
+//      checkPTT();
+//    checkButton();
+//  }
+// else
+//    controlAutoCW();
+  // KC4UPR:  Note, implementation below leaves no manual way to abort TX due to CAT.  May
+  // want to add in a way to interrupt CAT transmission with a PTT/CW event.
+  //if (!txCAT) {
+    if (cwMode == 0) {
       checkPTT();
-    checkButton();
-  }
- else
-    controlAutoCW();
-
+    } else {
       cwKeyer();
+    }
+    checkButton();    
+  //}
+  
+//cwKeyer(); 
   
   //tune only when not tranmsitting 
   if (!inTx){
@@ -1487,7 +1525,7 @@ void loop(){
   } //end of check TX Status
 
   //we check CAT after the encoder as it might put the radio into TX
-  Check_Cat(inTx? 1 : 0);
+  //Check_Cat(inTx? 1 : 0);
 
   //for SEND SW Serial
   #ifdef USE_SW_SERIAL

Raduino/ubitx.h

@@ -19,6 +19,8 @@
 
 #include <Arduino.h>  //for Linux, On Linux it is case sensitive.
 
+#include "RigState.h"
+
 //==============================================================================
 // Compile Option
 //==============================================================================
@@ -27,12 +29,12 @@
 
 //Depending on the type of LCD mounted on the uBITX, uncomment one of the options below.
 //You must select only one.
-#define UBITX_DISPLAY_LCD1602P        //LCD mounted on unmodified uBITX (Parallel)
+//#define UBITX_DISPLAY_LCD1602P        //LCD mounted on unmodified uBITX (Parallel)
 //#define UBITX_DISPLAY_LCD1602I        //I2C type 16 x 02 LCD
 //#define UBITX_DISPLAY_LCD1602I_DUAL   //I2C type 16 x02 LCD Dual
 //#define UBITX_DISPLAY_LCD2004P        //24 x 04 LCD (Parallel)
 //#define UBITX_DISPLAY_LCD2004I        //I2C type 24 x 04 LCD
-//#define UBITX_DISPLAY_NEXTION         //NEXTION LCD
+#define UBITX_DISPLAY_NEXTION         //NEXTION LCD
 
 //#define UBITX_DISPLAY_NEXTION_SAFE      //Only EEProm Write 770~775
 #define I2C_LCD_MASTER_ADDRESS_DEFAULT  0x27     //0x27  //DEFAULT, if Set I2C Address by uBITX Manager, read from EEProm
@@ -48,8 +50,8 @@
 //#define USE_CUSTOM_LPF_FILTER           //LPF FILTER MOD
 
 //#define ENABLE_FACTORYALIGN
-#define FACTORY_RECOVERY_BOOTUP         //Whether to enter Factory Recovery mode by pressing FKey and turning on power
-#define ENABLE_ADCMONITOR               //Starting with Version 1.07, you can read ADC values directly from uBITX Manager. So this function is not necessary.
+//#define FACTORY_RECOVERY_BOOTUP         //Whether to enter Factory Recovery mode by pressing FKey and turning on power
+//#define ENABLE_ADCMONITOR               //Starting with Version 1.07, you can read ADC values directly from uBITX Manager. So this function is not necessary.
 
 extern byte I2C_LCD_MASTER_ADDRESS;     //0x27  //if Set I2C Address by uBITX Manager, read from EEProm
 extern byte I2C_LCD_SECOND_ADDRESS;     //only using Dual LCD Mode
@@ -253,6 +255,12 @@ extern byte I2C_LCD_SECOND_ADDRESS;     //only using Dual LCD Mode
 #define I2CMETER_CALCR    0x55 //Calculated SWR Meter
 #define I2CMETER_UNCALCR  0x54 //Uncalculated SWR Meter
 
+// Raduino<=>TeensyDSP data exchange
+#define I2CMETER_RIGINF   0x50
+
+// Raduino requests any CAT updates from TeensyDSP
+//#define I2CMETER_REQCAT   0x51
+
 //==============================================================================
 // for public, Variable, functions
 //==============================================================================

Raduino/ubitx_keyer.ino

@@ -39,6 +39,22 @@ char lastPaddle = 0;
 
 //reads the analog keyer pin and reports the paddle
 byte getPaddle(){
+  /*
+   * KC4UPR - IOP update, 2020-05-03
+   * 
+   * Modifying this for the uBITX IOP.  Big picture:
+   * 
+   * (1) It uses the PTT input line.
+   * 
+   * (2) It's always "straight key" mode (the IOP provides the keyer).
+   */
+
+  if (digitalRead(PTT) == 1)  // key/PTT is up
+    return 0;
+  else
+    return PADDLE_STRAIGHT;
+
+/*
   int paddle = analogRead(ANALOG_KEYER);
 
   if (paddle > 800)         // above 4v is up
@@ -52,6 +68,7 @@ byte getPaddle(){
     return PADDLE_BOTH;     //both are between 1 and 2v
   else
     return PADDLE_STRAIGHT; //less than 1v is the straight key
+*/
 }
 
 /**
@@ -96,6 +113,17 @@ unsigned char keyerState = IDLE;
 //Below is a test to reduce the keying error. do not delete lines
 //create by KD8CEC for compatible with new CW Logic
 char update_PaddleLatch(byte isUpdateKeyState) {
+  /*
+   * KC4UPR - IOP update, 2020-05-03
+   * 
+   * Modifying this for the uBITX IOP.  Big picture:
+   * 
+   * No iambic keyer.  It's always "straight key" based on the IOP.
+   * 
+   * It uses the PTT line.
+   */
+  return (digitalRead(PTT) ? 0 : DIT_L);
+/*   
   unsigned char tmpKeyerControl = 0;
   int paddle = analogRead(ANALOG_KEYER);
   
@@ -119,6 +147,7 @@ char update_PaddleLatch(byte isUpdateKeyState) {
     keyerControl |= tmpKeyerControl;
 
   return tmpKeyerControl;
+*/
 }
 
 /*****************************************************************************
@@ -126,106 +155,113 @@ char update_PaddleLatch(byte isUpdateKeyState) {
 // modified by KD8CEC
 ******************************************************************************/
 void cwKeyer(void){
-  lastPaddle = 0;
-  bool continue_loop = true;
-  unsigned tmpKeyControl = 0;
-  
-  if( Iambic_Key ) {
-    while(continue_loop) {
-      switch (keyerState) {
-        case IDLE:
-          tmpKeyControl = update_PaddleLatch(0);
-          if ( tmpKeyControl == DAH_L || tmpKeyControl == DIT_L || 
-            tmpKeyControl == (DAH_L | DIT_L) || (keyerControl & 0x03)) {
-             update_PaddleLatch(1);
-             keyerState = CHK_DIT;
-          }else{
-            if (0 < cwTimeout && cwTimeout < millis()){
-              cwTimeout = 0;
-              stopTx();
-            }
-            continue_loop = false;
-          }
-          break;
-    
-        case CHK_DIT:
-          if (keyerControl & DIT_L) {
-            keyerControl |= DIT_PROC;
-            ktimer = cwSpeed;
-            keyerState = KEYED_PREP;
-          }else{
-            keyerState = CHK_DAH;
-          }
-          break;
-    
-        case CHK_DAH:
-          if (keyerControl & DAH_L) {
-            ktimer = cwSpeed*3;
-            keyerState = KEYED_PREP;
-          }else{
-            keyerState = IDLE;
-          }
-          break;
-    
-        case KEYED_PREP:
-          //modified KD8CEC
   /*
-          ktimer += millis(); // set ktimer to interval end time
-          keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
-          keyerState = KEYED; // next state
-          if (!inTx){
-            //DelayTime Option
-            delay_background(delayBeforeCWStartTime * 2, 2);
-            
-            keyDown = 0;
-            cwTimeout = millis() + cwDelayTime * 10;  //+ CW_TIMEOUT;
-            startTx(TX_CW, 1);
-          }
+   * KC4UPR - IOP update, 2020-05-03
+   * 
+   * Modifying this for the uBITX IOP.  Big picture:
+   * 
+   * No iambic keyer.  It's always "straight key" based on the IOP.
    */
-          if (!inTx){
-            //DelayTime Option
-            delay_background(delayBeforeCWStartTime * 2, 2);
-            
-            keyDown = 0;
-            cwTimeout = millis() + cwDelayTime * 10;  //+ CW_TIMEOUT;
-            startTx(TX_CW, 1);
-          }
-          ktimer += millis(); // set ktimer to interval end time
-          keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
-          keyerState = KEYED; // next state
-          
-          cwKeydown();
-          break;
-    
-        case KEYED:
-          if (millis() > ktimer) { // are we at end of key down ?
-           cwKeyUp();
-           ktimer = millis() + cwSpeed; // inter-element time
-            keyerState = INTER_ELEMENT; // next state
-          }else if (keyerControl & IAMBICB) {
-            update_PaddleLatch(1); // early paddle latch in Iambic B mode
-          }
-          break;
-    
-        case INTER_ELEMENT:
-          // Insert time between dits/dahs
-          update_PaddleLatch(1); // latch paddle state
-          if (millis() > ktimer) { // are we at end of inter-space ?
-            if (keyerControl & DIT_PROC) { // was it a dit or dah ?
-              keyerControl &= ~(DIT_L + DIT_PROC); // clear two bits
-              keyerState = CHK_DAH; // dit done, check for dah
-            }else{
-              keyerControl &= ~(DAH_L); // clear dah latch
-              keyerState = IDLE; // go idle
-            }
-          }
-          break;
-      }
-  
-      Check_Cat(2);
-    } //end of while
-  }
-  else{
+//  lastPaddle = 0;
+//  bool continue_loop = true;
+//  unsigned tmpKeyControl = 0;
+//  
+//  if( Iambic_Key ) {
+//    while(continue_loop) {
+//      switch (keyerState) {
+//        case IDLE:
+//          tmpKeyControl = update_PaddleLatch(0);
+//          if ( tmpKeyControl == DAH_L || tmpKeyControl == DIT_L || 
+//            tmpKeyControl == (DAH_L | DIT_L) || (keyerControl & 0x03)) {
+//             update_PaddleLatch(1);
+//             keyerState = CHK_DIT;
+//          }else{
+//            if (0 < cwTimeout && cwTimeout < millis()){
+//              cwTimeout = 0;
+//              stopTx();
+//            }
+//            continue_loop = false;
+//          }
+//          break;
+//    
+//        case CHK_DIT:
+//          if (keyerControl & DIT_L) {
+//            keyerControl |= DIT_PROC;
+//            ktimer = cwSpeed;
+//            keyerState = KEYED_PREP;
+//          }else{
+//            keyerState = CHK_DAH;
+//          }
+//          break;
+//    
+//        case CHK_DAH:
+//          if (keyerControl & DAH_L) {
+//            ktimer = cwSpeed*3;
+//            keyerState = KEYED_PREP;
+//          }else{
+//            keyerState = IDLE;
+//          }
+//          break;
+//    
+//        case KEYED_PREP:
+//          //modified KD8CEC
+//          /*
+//          ktimer += millis(); // set ktimer to interval end time
+//          keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
+//          keyerState = KEYED; // next state
+//          if (!inTx){
+//            //DelayTime Option
+//            delay_background(delayBeforeCWStartTime * 2, 2);
+//            
+//            keyDown = 0;
+//            cwTimeout = millis() + cwDelayTime * 10;  //+ CW_TIMEOUT;
+//            startTx(TX_CW, 1);
+//          }
+//          */
+//          if (!inTx){
+//            //DelayTime Option
+//            delay_background(delayBeforeCWStartTime * 2, 2);
+//            
+//            keyDown = 0;
+//            cwTimeout = millis() + cwDelayTime * 10;  //+ CW_TIMEOUT;
+//            startTx(TX_CW, 1);
+//          }
+//          ktimer += millis(); // set ktimer to interval end time
+//          keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
+//          keyerState = KEYED; // next state
+//          
+//          cwKeydown();
+//          break;
+//    
+//        case KEYED:
+//          if (millis() > ktimer) { // are we at end of key down ?
+//           cwKeyUp();
+//           ktimer = millis() + cwSpeed; // inter-element time
+//            keyerState = INTER_ELEMENT; // next state
+//          }else if (keyerControl & IAMBICB) {
+//            update_PaddleLatch(1); // early paddle latch in Iambic B mode
+//          }
+//          break;
+//    
+//        case INTER_ELEMENT:
+//          // Insert time between dits/dahs
+//          update_PaddleLatch(1); // latch paddle state
+//          if (millis() > ktimer) { // are we at end of inter-space ?
+//            if (keyerControl & DIT_PROC) { // was it a dit or dah ?
+//              keyerControl &= ~(DIT_L + DIT_PROC); // clear two bits
+//              keyerState = CHK_DAH; // dit done, check for dah
+//            }else{
+//              keyerControl &= ~(DAH_L); // clear dah latch
+//              keyerState = IDLE; // go idle
+//            }
+//          }
+//          break;
+//      }
+//  
+//      Check_Cat(2);
+//    } //end of while
+//  }
+//  else{
     while(1){
       if (update_PaddleLatch(0) == DIT_L) {
         // if we are here, it is only because the key is pressed
@@ -260,9 +296,9 @@ void cwKeyer(void){
         return;                   //Tx stop control by Main Loop
       }
 
-      Check_Cat(2);
+      //Check_Cat(2);
     } //end of while
-  }   //end of elese
+//  }   //end of elese
 }
 
 
@@ -365,5 +401,3 @@ void cwKeyer(){
   }
 }
 */
-
-

Raduino/ubitx_lcd_nextion.ino

@@ -993,6 +993,14 @@ char checkCountSMeter = 0;
 //execute interval : 0.25sec
 void idle_process()
 {
+  // KC4UPR 2021-02-05 added update process for Raduino-TeensyDSP coordination
+  rigState.send_RIGINF();
+  delay(1);
+  rigState.receive_RIGINF();
+  //updateStateFromRaduino(rigState);
+  //doRaduinoToTeensy(&rigState);
+  //updateRaduinoFromState(rigState);
+    
   //S-Meter Display
   if (((displayOption1 & 0x08) == 0x08 && (sdrModeOn == 0)) && (++checkCountSMeter > SMeterLatency))
   {
@@ -1041,7 +1049,7 @@ void SendUbitxData(void)
   EEPROM.get(EXTERNAL_DEVICE_OPT1, nextionDisplayOption); 
   SendCommandUL(CMD_DISP_OPTION2, nextionDisplayOption);
 
-  SendCommandStr(CMD_VERSION, (char *)("+v1.122")); //Version
+  SendCommandStr(CMD_VERSION, (char *)("+v1.200")); //Version
   SendEEPromData(CMD_CALLSIGN, 0, userCallsignLength -1, 0);
 
   /*

Raduino/ubitx_menu.ino

@@ -263,7 +263,7 @@ void menuCHMemory(int btn, byte isMemoryToVfo){
         }
       }
 
-      Check_Cat(0);  //To prevent disconnections
+      //Check_Cat(0);  //To prevent disconnections
     } //end of while (knob)
 
     if (selectChannel < 20 && selectChannel >= 0)
@@ -697,7 +697,7 @@ int getValueByKnob(int valueType, int targetValue, int minKnobValue, int maxKnob
         }
       }
 
-      Check_Cat(0);  //To prevent disconnections
+      //Check_Cat(0);  //To prevent disconnections
     }
 
     return targetValue;
@@ -1290,7 +1290,7 @@ void doMenu(){
       default :
         menuExit(btnState);  break;
     } //end of switch
-    Check_Cat(0);  //To prevent disconnections
+    //Check_Cat(0);  //To prevent disconnections
   }   //end of while
 
   //****************************************************************************
@@ -1690,7 +1690,7 @@ void menuSetupCarrier(int btn){
     si5351bx_setfreq(0, usbCarrier);
     printCarrierFreq(usbCarrier);
 
-    Check_Cat(0);  //To prevent disconnections
+    //Check_Cat(0);  //To prevent disconnections
     delay(100);
   }
 

Raduino/ubitx_ui.ino

@@ -18,6 +18,8 @@ const PROGMEM uint8_t meters_bitmap[] = {
 };
 */
 
+//#include "RigState.h"
+
 //SWR GRAPH,  DrawMeter and drawingMeter Logic function by VK2ETA 
 
 #ifdef OPTION_SKINNYBARS //We want skninny bars with more text
@@ -296,4 +298,4 @@ int GetI2CSmeterValue(int valueType)
   }
 }
 
-
+//======================================================================

Schematics/IO_Board/IO_Board-cache.lib

@@ -0,0 +1,342 @@
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# Amplifier_Operational_LM324A
+#
+DEF Amplifier_Operational_LM324A U 0 5 Y Y 5 L N
+F0 "U" 0 200 50 H V L CNN
+F1 "Amplifier_Operational_LM324A" 0 -200 50 H V L CNN
+F2 "" -50 100 50 H I C CNN
+F3 "" 50 200 50 H I C CNN
+ALIAS LM324 TLC274 TLC279 TL074 LM324A MCP6004 TL084 TL064 LMV324 LMC6484 MCP604 MC33079 MC33174 MC33179 OPA1604 OPA1679 OPA4134 OPA4340UA OPA4376 MCP6L94 TSV914 ADA4807-4 TSV994
+$FPLIST
+ SOIC*3.9x8.7mm*P1.27mm*
+ DIP*W7.62mm*
+ TSSOP*4.4x5mm*P0.65mm*
+ SSOP*5.3x6.2mm*P0.65mm*
+ MSOP*3x3mm*P0.5mm*
+$ENDFPLIST
+DRAW
+P 4 1 1 10 -200 200 200 0 -200 -200 -200 200 f
+P 4 2 1 10 -200 200 200 0 -200 -200 -200 200 f
+P 4 3 1 10 -200 200 200 0 -200 -200 -200 200 f
+P 4 4 1 10 -200 200 200 0 -200 -200 -200 200 f
+X ~ 1 300 0 100 L 50 50 1 1 O
+X - 2 -300 -100 100 R 50 50 1 1 I
+X + 3 -300 100 100 R 50 50 1 1 I
+X + 5 -300 100 100 R 50 50 2 1 I
+X - 6 -300 -100 100 R 50 50 2 1 I
+X ~ 7 300 0 100 L 50 50 2 1 O
+X + 10 -300 100 100 R 50 50 3 1 I
+X ~ 8 300 0 100 L 50 50 3 1 O
+X - 9 -300 -100 100 R 50 50 3 1 I
+X + 12 -300 100 100 R 50 50 4 1 I
+X - 13 -300 -100 100 R 50 50 4 1 I
+X ~ 14 300 0 100 L 50 50 4 1 O
+X V- 11 -100 -300 150 U 50 50 5 1 W
+X V+ 4 -100 300 150 D 50 50 5 1 W
+ENDDRAW
+ENDDEF
+#
+# Amplifier_Operational_LM358
+#
+DEF Amplifier_Operational_LM358 U 0 5 Y Y 3 L N
+F0 "U" 0 200 50 H V L CNN
+F1 "Amplifier_Operational_LM358" 0 -200 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ SOIC*3.9x4.9mm*P1.27mm*
+ DIP*W7.62mm*
+ TO*99*
+ OnSemi*Micro8*
+ TSSOP*3x3mm*P0.65mm*
+ TSSOP*4.4x3mm*P0.65mm*
+ MSOP*3x3mm*P0.65mm*
+ SSOP*3.9x4.9mm*P0.635mm*
+ LFCSP*2x2mm*P0.5mm*
+ *SIP*
+ SOIC*5.3x6.2mm*P1.27mm*
+$ENDFPLIST
+DRAW
+P 4 1 1 10 -200 200 200 0 -200 -200 -200 200 f
+P 4 2 1 10 -200 200 200 0 -200 -200 -200 200 f
+X ~ 1 300 0 100 L 50 50 1 1 O
+X - 2 -300 -100 100 R 50 50 1 1 I
+X + 3 -300 100 100 R 50 50 1 1 I
+X + 5 -300 100 100 R 50 50 2 1 I
+X - 6 -300 -100 100 R 50 50 2 1 I
+X ~ 7 300 0 100 L 50 50 2 1 O
+X V- 4 -100 -300 150 U 50 50 3 1 W
+X V+ 8 -100 300 150 D 50 50 3 1 W
+ENDDRAW
+ENDDEF
+#
+# Amplifier_Operational_TL072
+#
+DEF Amplifier_Operational_TL072 U 0 5 Y Y 3 L N
+F0 "U" 0 200 50 H V L CNN
+F1 "Amplifier_Operational_TL072" 0 -200 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS LM358 AD8620 LMC6062 LMC6082 TL062 TL072 TL082 NE5532 SA5532 RC4558 RC4560 RC4580 LMV358 TS912 TSV912IDT TSV912IST TLC272 TLC277 MCP602 OPA1678 OPA2134 OPA2340 OPA2376xxD OPA2376xxDGK MC33078 MC33178 LM4562 OP249 OP275 ADA4075-2 MCP6002-xP MCP6002-xSN MCP6002-xMS LM7332 OPA2333xxD OPA2333xxDGK LMC6482 LT1492 LTC6081xMS8 LM6172 MCP6L92 NJM2043 NJM2114 NJM4556A NJM4558 NJM4559 NJM4560 NJM4580 NJM5532 ADA4807-2ARM OPA2691 LT6234 OPA2356xxD OPA2356xxDGK OPA1612AxD MC33172 OPA1602 TLV2372 LT6237 OPA2277
+$FPLIST
+ SOIC*3.9x4.9mm*P1.27mm*
+ DIP*W7.62mm*
+ TO*99*
+ OnSemi*Micro8*
+ TSSOP*3x3mm*P0.65mm*
+ TSSOP*4.4x3mm*P0.65mm*
+ MSOP*3x3mm*P0.65mm*
+ SSOP*3.9x4.9mm*P0.635mm*
+ LFCSP*2x2mm*P0.5mm*
+ *SIP*
+ SOIC*5.3x6.2mm*P1.27mm*
+$ENDFPLIST
+DRAW
+P 4 1 1 10 -200 200 200 0 -200 -200 -200 200 f
+P 4 2 1 10 -200 200 200 0 -200 -200 -200 200 f
+X ~ 1 300 0 100 L 50 50 1 1 O
+X - 2 -300 -100 100 R 50 50 1 1 I
+X + 3 -300 100 100 R 50 50 1 1 I
+X + 5 -300 100 100 R 50 50 2 1 I
+X - 6 -300 -100 100 R 50 50 2 1 I
+X ~ 7 300 0 100 L 50 50 2 1 O
+X V- 4 -100 -300 150 U 50 50 3 1 W
+X V+ 8 -100 300 150 D 50 50 3 1 W
+ENDDRAW
+ENDDEF
+#
+# Connector_Conn_01x02_Male
+#
+DEF Connector_Conn_01x02_Male J 0 40 Y N 1 F N
+F0 "J" 0 100 50 H V C CNN
+F1 "Connector_Conn_01x02_Male" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S 34 -95 0 -105 1 1 6 F
+S 34 5 0 -5 1 1 6 F
+P 2 1 1 6 50 -100 34 -100 N
+P 2 1 1 6 50 0 34 0 N
+X Pin_1 1 200 0 150 L 50 50 1 1 P
+X Pin_2 2 200 -100 150 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Connector_Conn_01x03_Male
+#
+DEF Connector_Conn_01x03_Male J 0 40 Y N 1 F N
+F0 "J" 0 200 50 H V C CNN
+F1 "Connector_Conn_01x03_Male" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S 34 -95 0 -105 1 1 6 F
+S 34 5 0 -5 1 1 6 F
+S 34 105 0 95 1 1 6 F
+P 2 1 1 6 50 -100 34 -100 N
+P 2 1 1 6 50 0 34 0 N
+P 2 1 1 6 50 100 34 100 N
+X Pin_1 1 200 100 150 L 50 50 1 1 P
+X Pin_2 2 200 0 150 L 50 50 1 1 P
+X Pin_3 3 200 -100 150 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Connector_Conn_01x06_Male
+#
+DEF Connector_Conn_01x06_Male J 0 40 Y N 1 F N
+F0 "J" 0 300 50 H V C CNN
+F1 "Connector_Conn_01x06_Male" 0 -400 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S 34 -295 0 -305 1 1 6 F
+S 34 -195 0 -205 1 1 6 F
+S 34 -95 0 -105 1 1 6 F
+S 34 5 0 -5 1 1 6 F
+S 34 105 0 95 1 1 6 F
+S 34 205 0 195 1 1 6 F
+P 2 1 1 6 50 -300 34 -300 N
+P 2 1 1 6 50 -200 34 -200 N
+P 2 1 1 6 50 -100 34 -100 N
+P 2 1 1 6 50 0 34 0 N
+P 2 1 1 6 50 100 34 100 N
+P 2 1 1 6 50 200 34 200 N
+X Pin_1 1 200 200 150 L 50 50 1 1 P
+X Pin_2 2 200 100 150 L 50 50 1 1 P
+X Pin_3 3 200 0 150 L 50 50 1 1 P
+X Pin_4 4 200 -100 150 L 50 50 1 1 P
+X Pin_5 5 200 -200 150 L 50 50 1 1 P
+X Pin_6 6 200 -300 150 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_C
+#
+DEF Device_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "Device_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_CP1
+#
+DEF Device_CP1 C 0 10 N N 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "Device_CP1" 25 -100 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ CP_*
+$ENDFPLIST
+DRAW
+A 0 -150 128 1287 513 0 1 20 N -80 -50 80 -50
+P 2 0 1 20 -80 30 80 30 N
+P 2 0 1 0 -70 90 -30 90 N
+P 2 0 1 0 -50 70 -50 110 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 130 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_D
+#
+DEF Device_D D 0 40 N N 1 F N
+F0 "D" 0 100 50 H V C CNN
+F1 "Device_D" 0 -100 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ TO-???*
+ *_Diode_*
+ *SingleDiode*
+ D_*
+$ENDFPLIST
+DRAW
+P 2 0 1 8 -50 50 -50 -50 N
+P 2 0 1 0 50 0 -50 0 N
+P 4 0 1 8 50 50 50 -50 -50 0 50 50 N
+X K 1 -150 0 100 R 50 50 1 1 P
+X A 2 150 0 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_R_POT_US
+#
+DEF Device_R_POT_US RV 0 40 Y N 1 F N
+F0 "RV" -175 0 50 V V C CNN
+F1 "Device_R_POT_US" -100 0 50 V V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Potentiometer*
+$ENDFPLIST
+DRAW
+P 2 0 1 0 0 -90 0 -100 N
+P 2 0 1 0 0 100 0 90 N
+P 2 0 1 0 100 0 60 0 N
+P 4 0 1 0 45 0 90 20 90 -20 45 0 F
+P 5 0 1 0 0 -30 40 -45 0 -60 -40 -75 0 -90 N
+P 5 0 1 0 0 30 40 15 0 0 -40 -15 0 -30 N
+P 5 0 1 0 0 90 40 75 0 60 -40 45 0 30 N
+X 1 1 0 150 50 D 50 50 1 1 P
+X 2 2 150 0 50 L 50 50 1 1 P
+X 3 3 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_R_US
+#
+DEF Device_R_US R 0 0 N Y 1 F N
+F0 "R" 100 0 50 V V C CNN
+F1 "Device_R_US" -100 0 50 V V C CNN
+F2 "" 40 -10 50 V I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+$ENDFPLIST
+DRAW
+P 2 0 1 0 0 -90 0 -100 N
+P 2 0 1 0 0 90 0 100 N
+P 5 0 1 0 0 -30 40 -45 0 -60 -40 -75 0 -90 N
+P 5 0 1 0 0 30 40 15 0 0 -40 -15 0 -30 N
+P 5 0 1 0 0 90 40 75 0 60 -40 45 0 30 N
+X ~ 1 0 150 50 D 50 50 1 1 P
+X ~ 2 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Transistor_BJT_PN2222A
+#
+DEF Transistor_BJT_PN2222A Q 0 0 Y N 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "Transistor_BJT_PN2222A" 200 0 50 H V L CNN
+F2 "Package_TO_SOT_THT:TO-92_Inline" 200 -75 50 H I L CIN
+F3 "" 0 0 50 H I L CNN
+$FPLIST
+ TO?92*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 100 -100 25 -25 N
+P 2 0 1 0 100 100 25 25 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 3 0 1 0 95 -95 75 -75 75 -75 N
+P 5 0 1 0 45 -65 65 -45 85 -85 45 -65 45 -65 F
+X E 1 100 -200 100 U 50 50 1 1 P
+X B 2 -200 0 200 R 50 50 1 1 I
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# power_+5V
+#
+DEF power_+5V #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_+5V" 0 140 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 1 0 -30 50 0 100 N
+P 2 0 1 0 0 0 0 100 N
+P 2 0 1 0 0 100 30 50 N
+X +5V 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# power_GND
+#
+DEF power_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "power_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+#End Library

Schematics/IO_Board/IO_Board.kicad_pcb

@@ -0,0 +1 @@
+(kicad_pcb (version 4) (host kicad "dummy file") )

Schematics/IO_Board/IO_Board.pro

@@ -0,0 +1,33 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]

Schematics/IO_Board/IO_Board_Wiring.sch

@@ -0,0 +1,16 @@
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 2 2
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$EndSCHEMATC

TeensyDSP/DSP.cpp

@@ -0,0 +1,480 @@
+//======================================================================
+// DSP.cpp
+//======================================================================
+
+#include "DSP.h"
+
+#include <i2c_t3.h>
+//#include <Wire.h>
+//#include <SPI.h>
+//#include <SD.h>
+//#include <SerialFlash.h>
+
+// GUItool: begin automatically generated code
+AudioInputUSB            usbIn;          //xy=63,305
+AudioInputI2S            lineIn;         //xy=71,197
+AudioSynthWaveformSine   tone1;          //xy=111,369
+AudioSynthWaveformSine   tone2;          //xy=111,410
+AudioMixer4              rxAudio;        //xy=328,111
+AudioMixer4              txAudio;        //xy=332,299
+AudioAnalyzeRMS          txVoxLevel;     //xy=490,340
+AudioFilterFIR           rxFilter;       //xy=493,103
+AudioAmplifier           usbOutAmp;      //xy=658,99
+AudioAmplifier           lineOutAmp;     //xy=659,162
+AudioAmplifier           usbBypassAmp;   //xy=666,225
+AudioAmplifier           txOutAmp;       //xy=713,301
+AudioOutputI2S           lineOut;        //xy=876,294
+AudioOutputUSB           usbOut;         //xy=878,255
+AudioConnection          patchCord1(usbIn, 0, txAudio, 1);
+AudioConnection          patchCord2(lineIn, 0, rxAudio, 0);
+AudioConnection          patchCord3(lineIn, 1, txAudio, 0);
+AudioConnection          patchCord4(tone1, 0, txAudio, 2);
+AudioConnection          patchCord5(tone1, 0, rxAudio, 2);
+AudioConnection          patchCord6(tone2, 0, txAudio, 3);
+AudioConnection          patchCord7(tone2, 0, rxAudio, 3);
+AudioConnection          patchCord8(rxAudio, rxFilter);
+AudioConnection          patchCord9(rxAudio, usbBypassAmp);
+AudioConnection          patchCord10(txAudio, txVoxLevel);
+AudioConnection          patchCord11(txAudio, txOutAmp);
+AudioConnection          patchCord12(rxFilter, usbOutAmp);
+AudioConnection          patchCord13(rxFilter, lineOutAmp);
+AudioConnection          patchCord14(usbOutAmp, 0, usbOut, 0);
+AudioConnection          patchCord15(lineOutAmp, 0, lineOut, 0);
+AudioConnection          patchCord16(usbBypassAmp, 0, usbOut, 1);
+AudioConnection          patchCord17(txOutAmp, 0, lineOut, 1);
+AudioControlSGTL5000     audioCtrl;      //xy=337,440
+// GUItool: end automatically generated code
+
+void UBitxDSP::begin() {
+
+  // Basic audio setup
+  AudioMemory(16);            // TODO: optimize this
+  audioCtrl.enable();
+  audioCtrl.volume(0.0);      // headphone volume...
+  audioCtrl.muteHeadphone();  // ...not used by UBitxDSP
+
+  setupRxAudio();
+  setupTxAudio();
+
+  // Default to RX.
+  muteRxIn(); // redundant?
+  muteTxIn(); // redundant?
+  isTx = true;  // so that rx() call works
+  rx();
+
+  // Setup the VOX - TBD
+
+  // Setup the RX Filter.
+  setRxFilter(300.0, 3000.0);
+
+  sinceLastUpdate = 0;
+}
+
+void UBitxDSP::update() {
+  // Update the USB volume (level of TX USB output) periodically.
+  if (sinceLastUpdate > DSP_MILLIS_PER_UPDATE) {
+    float vol = usbIn.volume();
+    if (vol != usbVol) {
+      setTxInLevel(TX_USB, vol);
+      usbVol = vol;
+    }
+    sinceLastUpdate = 0;
+  }
+}
+
+void UBitxDSP::end() {
+  bypassRxFilter();
+}
+
+/**********************************************************************
+ * Transmit/Receive switching
+ **********************************************************************/
+
+/*!
+ *  Return to receive (RX) mode from transmit (TX) mode.  
+ *  First the transmit audio output is muted, to ensure that no more
+ *  audio goes to the rig.  Then we check to see if the latched TX audio 
+ *  source was different than the selected TX audio source; this happens 
+ *  if the radio is currently set for a particular input (which 
+ *  determines what is monitored by the VOX), but then is commanded to 
+ *  transmit a different source (e.g. based on a CAT command).  The 
+ *  actual transmit audio source is latched during transmit, but upon 
+ *  returning to receive, we restore the selected transmit audio.
+ */
+void UBitxDSP::rx() {
+  if (isTx) {
+    muteTxOut();
+    if (txSrcLatched != txSrc) {
+      setTxAudioIn(txSrc);
+    }
+    if (txSrcLatched == MIC_IN) {
+      audioCtrl.inputSelect(AUDIO_INPUT_LINEIN);
+    }
+    unmuteRxIn(RX_AUDIO);
+    isTx = false;
+  }
+}
+
+/*!
+ *  Enter transmit (TX) mode from receive (RX) mode.  
+ */
+void UBitxDSP::tx(TxAudioIn src) {
+  if (!isTx) {
+    muteRxIn(RX_AUDIO);
+
+    txSrcLatched = src;
+    if (txSrcLatched != txSrc) {
+      setTxAudioIn(txSrcLatched, true);
+    }
+
+    if (txSrcLatched == MIC_IN) {
+      audioCtrl.inputSelect(AUDIO_INPUT_MIC);
+      audioCtrl.micGain(micGain);
+    }
+
+    unmuteTxOut();
+    isTx = true;
+  }
+}
+
+/**********************************************************************
+ * General audio setup -- called via begin()
+ **********************************************************************/
+
+void UBitxDSP::setupRxAudio() {
+  for (int i = 0; i < NUM_RX_AUDIO_CH; i++) {
+    if (i == RX_AUDIO)
+      rxAudio.gain(i, 1.0);
+    else
+      rxAudio.gain(i, 0.0);
+  }  
+
+  // Rig (Line) Input (RX)
+  audioCtrl.inputSelect(AUDIO_INPUT_LINEIN);
+  audioCtrl.unmuteLineout();
+  audioCtrl.lineInLevel(9, 5);  // RX, TX
+  audioCtrl.lineOutLevel(29, 31); // RX, TX
+
+  // Line Output (RX)
+  setLineOutLevel(1.0);
+
+  // USB Output (RX)
+  setUSBOutLevel(1.0);
+}
+
+void UBitxDSP::setupTxAudio() {
+  for (int i = 0; i < NUM_TX_AUDIO_CH; i++) {
+    txAudio.gain(i, 0.0);
+  }
+
+  // Mic Input (TX)
+  audioCtrl.micGain(0); // TODO: set value
+  // Line Input (TX)
+
+  // USB Input (TX)
+
+  // Rig (Line) Output (TX)
+  txOutAmp.gain(1.0);
+
+  tone1.amplitude(1.0);   // TODO - just do this once.
+  tone1.frequency(1500);  // TODO:  Make this dynamic based on CW (sidetone freq) versus data (1500 Hz)
+
+  tone1.amplitude(1.0); // TODO - just do this once.
+  tone1.amplitude(1.0); // TODO - just do this once.
+  tone1.frequency(700);
+  tone2.frequency(1900);
+}
+
+/**********************************************************************
+ * Receive audio chain
+ **********************************************************************/
+
+void UBitxDSP::setRxInLevel(RxAudioCh ch, float level) {
+  if (ch < NUM_RX_AUDIO_CH) {
+    state.rxIn[ch].level = level;
+    rxAudio.gain(ch, state.rxIn[ch].mute ? 0.0 : state.rxIn[ch].level);
+  }
+}
+
+void UBitxDSP::muteRxIn() {
+  for (int i = 0; i < NUM_RX_AUDIO_CH; i++) {
+    state.rxIn[RxAudioCh(i)].mute = true;
+    rxAudio.gain(i, 0.0);
+  }
+}
+
+void UBitxDSP::muteRxIn(RxAudioCh ch) {
+  if (ch < NUM_RX_AUDIO_CH) {
+    if (!state.rxIn[ch].mute) {
+      state.rxIn[ch].mute = true;
+      rxAudio.gain(ch, 0.0);
+    }
+  }
+}
+
+void UBitxDSP::unmuteRxIn(RxAudioCh ch) {
+  if (ch < NUM_RX_AUDIO_CH) {
+    if (state.rxIn[ch].mute) {
+      state.rxIn[ch].mute = false;
+      rxAudio.gain(ch, state.rxIn[ch].level);
+    }
+  }
+}
+
+void UBitxDSP::setLineOutLevel(float level) {
+  state.rxOut[LINE_OUT].level = level;
+  lineOutAmp.gain(state.rxOut[LINE_OUT].mute ? 0.0 : state.rxOut[LINE_OUT].level);
+}
+
+void UBitxDSP::setUSBOutLevel(float level) {
+  state.rxOut[USB_OUT].level = level;
+  usbOutAmp.gain(state.rxOut[USB_OUT].mute ? 0.0 : state.rxOut[USB_OUT].level);
+  usbBypassAmp.gain(state.rxOut[USB_OUT].mute ? 0.0 : state.rxOut[USB_OUT].level);
+}
+
+/**********************************************************************
+ * Transmit audio chain
+ **********************************************************************/
+
+void UBitxDSP::setTxInLevel(TxAudioCh ch, float level) {
+  if (ch < NUM_TX_AUDIO_CH) {
+    state.txIn[ch].level = level;
+    txAudio.gain(ch, state.txIn[ch].mute ? 0.0 : state.txIn[ch].level);
+  }
+}
+
+void UBitxDSP::muteTxIn() {
+  for (int i = 0; i < NUM_TX_AUDIO_CH; i++) {
+    state.txIn[TxAudioCh(i)].mute = true;
+    txAudio.gain(i, 0.0);
+  }
+}
+
+void UBitxDSP::muteTxIn(TxAudioCh ch) {
+  if (ch < NUM_TX_AUDIO_CH) {
+    if (!state.txIn[ch].mute) {
+      state.txIn[ch].mute = true;
+      txAudio.gain(ch, 0.0);
+    }
+  }
+}
+
+void UBitxDSP::unmuteTxIn(TxAudioCh ch) {
+  if (ch < NUM_TX_AUDIO_CH) {
+    if (state.txIn[ch].mute) {
+      state.txIn[ch].mute = false;
+      rxAudio.gain(ch, state.txIn[ch].level);
+    }
+  }
+}
+
+void UBitxDSP::setTxOutLevel(float level) {
+  state.txOut.level = level;
+  txOutAmp.gain(state.txOut.mute ? 0.0 : state.txOut.level);
+}
+
+void UBitxDSP::muteTxOut() {
+  if (!state.txOut.mute) {
+    state.txOut.mute = true;
+    txOutAmp.gain(0.0);
+  }
+}
+
+void UBitxDSP::unmuteTxOut() {
+  if (state.txOut.mute) {
+    state.txOut.mute = false;
+    txOutAmp.gain(state.txOut.level);
+  }
+}
+
+void UBitxDSP::setLineInLevel(float level) {
+  state.txIn[TX_LINE].level = level;
+  txAudio.gain(TX_LINE, state.txIn[TX_LINE].mute ? 0.0 : state.txIn[TX_LINE].level);  
+}
+
+void UBitxDSP::setUSBInLevel(float level) {
+  state.txIn[TX_USB].level = level;
+  txAudio.gain(TX_USB, state.txIn[TX_USB].mute ? 0.0 : state.txIn[TX_USB].level);    
+}
+
+void UBitxDSP::setTxAudioIn(TxAudioIn src, bool isTemp) {
+  if (!isTemp) {
+    txSrc = src;
+  }
+
+  if (!isTx) {
+    muteTxIn();     // Mute all channels, then unmute the desired ones.
+    switch (src) {  // Don't switch inputs while transmitting.
+      case MIC_IN:
+      // Note that we can't actually use the VOX code on the mic input,
+      // because we can't make the actual mic input active without
+      // losing our receive audio.  So, mic input is never actually 
+      // selected until it is time for it to transmit, which makes the
+      // VOX moot.  The caller must make use of an external, analog VOX
+      // circuit driving a GPIO pin, or something similar (or the PTT of
+      // course) to begin actually using the mic input.  So this case 
+      // just falls through to the line input.
+      
+      case LINE_IN:
+      unmuteTxIn(TX_LINE);
+      break;
+
+      case USB_IN:
+      unmuteTxIn(TX_USB);
+      break;
+  
+      case TUNE_IN:
+      tone1.amplitude(1.0);   // TODO - just do this once.
+      tone1.frequency(1500);  // TODO:  Make this dynamic based on CW (sidetone freq) versus data (1500 Hz)
+      unmuteTxIn(TX_TONE1);
+      break;
+  
+      case TWO_TONE_IN:
+      tone1.amplitude(1.0); // TODO - just do this once.
+      tone1.amplitude(1.0); // TODO - just do this once.
+      tone1.frequency(700);
+      tone2.frequency(1900);
+      unmuteTxIn(TX_TONE1);
+      unmuteTxIn(TX_TONE2);
+      break;
+
+      default:
+      // should never happen
+      break;
+    }
+  }
+}
+
+/**********************************************************************
+ * Receive audio filter (band pass)
+ **********************************************************************/
+
+const int minRxFilterLo = MIN_RX_FILTER_LO;
+const int maxRxFilterHi = MAX_RX_FILTER_HI;
+const int minRxFilterWidth = MIN_RX_FILTER_WIDTH;
+const int maxRxFilterWidth = MAX_RX_FILTER_WIDTH;
+const int minRxFilterCenter = MIN_RX_FILTER_CENTER;
+const int maxRxFilterCenter = MAX_RX_FILTER_CENTER;
+
+/*!
+ *  @brief  Bypass the RX audio filter.
+ */
+void UBitxDSP::bypassRxFilter() {
+  rxFilter.begin(FIR_PASSTHRU, NUM_COEFFICIENTS);
+}
+
+/*!
+    @brief  Update the RX audio filter using the currently set low and
+            high frequencies.  This is called by each of the public
+            filter methods to update the filter with new frequencies.
+*/
+void UBitxDSP::updateRxFilter() {
+  audioFilter(coefficients, NUM_COEFFICIENTS, ID_BANDPASS, W_HAMMING, double(state.rxFilterLo), double(state.rxFilterHi));
+  rxFilter.begin(coefficients, NUM_COEFFICIENTS);
+}
+
+void UBitxDSP::setRxFilter(int lo, int hi) {
+  if (hi < lo + minRxFilterWidth) {
+    hi = lo + minRxFilterWidth;
+  }
+  if (hi > maxRxFilterHi) {
+    hi = maxRxFilterHi;
+  }
+  if (lo > hi - minRxFilterWidth) {
+    lo = hi - minRxFilterWidth;
+  }
+  if (lo < minRxFilterLo) {
+    lo = minRxFilterLo;
+  }
+  state.rxFilterHi = hi;
+  state.rxFilterLo = lo;
+  updateRxFilter();
+}
+
+void UBitxDSP::setRxFilterLo(int lo) {
+  if (lo > state.rxFilterHi - minRxFilterWidth) {
+    lo = state.rxFilterHi - minRxFilterWidth;
+  }
+  if (lo < minRxFilterLo) {
+    lo = minRxFilterLo;
+  }
+  state.rxFilterLo = lo;
+  updateRxFilter();
+}
+
+void UBitxDSP::setRxFilterHi(int hi) {
+  if (hi < state.rxFilterLo + minRxFilterWidth) {
+    hi = state.rxFilterLo + minRxFilterWidth;
+  }
+  if (hi > maxRxFilterHi) {
+    hi = maxRxFilterHi;
+  }
+  state.rxFilterHi = hi;
+  updateRxFilter();
+}
+
+void UBitxDSP::setRxFilterWidth(int width) {
+  if (width < minRxFilterWidth) {
+    width = minRxFilterWidth;
+  } else if (width > maxRxFilterWidth) {
+    width = maxRxFilterWidth;
+  }
+  int center = (state.rxFilterHi + state.rxFilterLo) / 2;
+  int lo = center - (width / 2);
+  int hi = center + (width / 2);
+  setRxFilter(lo, hi);
+}
+
+void UBitxDSP::setRxFilterCenter(int center) {
+  if (center < minRxFilterCenter) {
+    center = minRxFilterCenter;
+  } else if (center > maxRxFilterCenter) {
+    center = maxRxFilterCenter;
+  }
+  int width = state.rxFilterHi - state.rxFilterLo;
+  int lo = center - (width / 2);
+  int hi = center + (width / 2);
+  setRxFilter(lo, hi);
+}
+
+/**********************************************************************
+ * Transmit Voice-Operated-Switch (VOX)
+ **********************************************************************/
+
+float UBitxDSP::getVoxLevel() const {
+  if (return txVoxLevel.available()) {
+    prevVox = txVoxLevel.read();
+  }
+  return prevVox;
+}
+
+/**********************************************************************
+ * Singleton - the DSP instance
+ **********************************************************************/
+
+// TODO:  Fix this. This won't work... this compilation unit won't be
+// able to instantiate a class it doesn't know about.
+
+#ifndef UBITXDSP_CLASS
+#define UBITXDSP_CLASS UBitxDSP
+#endif
+
+UBITXDSP_CLASS theDSP;
+UBitxDSP& DSP = theDSP;
+
+/*
+    NOTES
+
+    Major functions:
+      - tx() - start transmitting / pause receiving
+      - rx() - stop transmitting / resume receiving
+      - setTxSource() - set the TX audio source to MIC_IN, LINE_IN, or USB_IN
+                      - also sets the relevant VOX source/parameters (as applicable)
+
+    Receive audio chain:
+      -
+*/
+
+//======================================================================
+// EOF
+//======================================================================

TeensyDSP/DSP.h

@@ -0,0 +1,283 @@
+//======================================================================
+// DSP.h
+//======================================================================
+
+#ifndef __DSP_h__
+#define __DSP_h__
+
+#include <Audio.h>
+#include <dynamicFilters.h>
+#include "Debug.h"
+
+/**********************************************************************
+ * Macros
+ **********************************************************************/
+
+#define MIN_RX_FILTER_LO      (0.0)     //! Min allowable value of the RX filter low-cut frequency
+#define MAX_RX_FILTER_HI      (5000.0)  //! Max allowable value of the RX filter hi-cut frequency
+#define MIN_RX_FILTER_WIDTH   (0.0)     //! Min allowable value of the RX filter bandwidth
+#define MAX_RX_FILTER_WIDTH   (5000.0)  //! Max allowable value of the RX filter bandwidth
+#define MIN_RX_FILTER_CENTER  (0.0)     //! Min allowable value of the RX filter center frequency
+#define MAX_RX_FILTER_CENTER  (5000.0)  //! Max allowable value of the RX filter center frequency
+
+#define DSP_MILLIS_PER_UPDATE (100)   //! Number of milliseconds between update of the DSP object
+
+#define TX_VOX_MIC_THRESH   (0.0)     //! Threshold for mic VOX (not implemented, since mic requires special handling)
+#define TX_VOX_LINE_THRESH  (0.25)    //! Threshold for line in VOX
+#define TX_VOX_USB_THRESH   (0.25)    //! Threshold for USB VOX
+#define TX_VOX_TUNE_THRESH  (0.0)     //! Threshold for tune (single tone) VOX (not expected to be used)
+#define TX_VOX_TT_THRESH    (0.0)     //! Threshold for two-tone VOX (not expected to be used)
+#define TX_VOX_DELAY        (500)     //! VOX delay in milliseconds
+
+/**********************************************************************
+ * Enumerations
+ **********************************************************************/
+
+//! Defines the four separate RX audio input channels available.
+enum RxAudioCh {
+  RX_AUDIO = 0,       // Normal receiver audio input channel
+  RX_SPARE,           // Not used
+  RX_TONE1 ,          // Optional tone #1 input channel (currently not used)
+  RX_TONE2,           // Optional tone #2 input channel (currently not used)
+  NUM_RX_AUDIO_CH     // Total number of channels
+};
+
+//! Defines the different RX audio inputs (not channels).
+enum RxAudioIn {
+  RIG_IN = 0,         // Normal rig input (receiver audio)
+  NUM_RX_AUDIO_IN     // Total number of inputs
+};
+
+//! Defines the different RX audio outputs.
+enum RxAudioOut {
+  LINE_OUT = 0,       // Line audio out (and speaker)
+  USB_OUT,            // USB audio out
+  NUM_RX_AUDIO_OUT
+};
+
+//! Defines the four separate TX audio input channels available.
+enum TxAudioCh {
+  TX_LINE = 0,        // Line and/or mic audio input channel
+  TX_USB,             // USB audio input channel
+  TX_TONE1,           // Audio tone #1 input channel
+  TX_TONE2,           // Audio tone #2 input channel
+  NUM_TX_AUDIO_CH     // Toal number of channels
+};
+
+//! Defines the different TX audio input sources (not channels!).
+enum TxAudioIn {
+  MIC_IN = 0,         // Microphone transmit audio input
+  LINE_IN,            // Line ("AUX") transmit audio input
+  USB_IN,             // USB transmit audio input
+  TUNE_IN,            // Tune input (transmits a single tone)
+  TWO_TONE_IN,        // Two tone audio input (transmits two tones)
+  NUM_TX_AUDIO_IN     // Total number of inputs
+};
+
+/**********************************************************************
+ * Classes
+ **********************************************************************/
+
+//! Defines parameters for a simple audio channel that can be muted.
+struct AudioChannel {
+  bool mute = false;
+  float level = 0.0;
+};
+
+/*!
+ *  Contains the current 'persistent' state of the DSP.
+ *  This includes all audio-specific state that can be saved to, or
+ *  restored from, EEPROM.  It does not include 'transient' state (such 
+ *  as whether we're currently transmitting or receiving).
+ */
+struct DSPState {
+ 
+  //! Receiver audio inputs; all default to muted.
+  AudioChannel rxIn[NUM_RX_AUDIO_CH] = {
+    {true, 1.0},    // audio
+    {true, 0.0},    // spare 1
+    {true, 0.0},    // spare 2
+    {true, 0.0}     // spare 3
+  };
+
+  //! Receiver audio output; defaults to un
+  muted.
+  AudioChannel rxOut[NUM_RX_AUDIO_OUT] = {
+    {false, 1.0},   // line
+    {false, 1.0}    // USB
+  };
+
+  //! Transmitter audio inputs; all default to muted.
+  AudioChannel txIn[NUM_TX_AUDIO_CH] = {
+    {true, 0.1},    // line
+    {true, 0.1},    // USB
+    {true, 0.1},    // tone 1
+    {true, 0.1}     // tone 2
+  };
+
+  //! Tranmitter audio output; defaults to muted.
+  AudioChannel txOut = {true, 1.0};
+
+  //! Current RX filter settings
+  float rxFilterLo = 300.0;
+  float rxFilterHi = 3000.0;
+};
+
+/*!
+ *  Defines the DSP subsystem of the UBitx V5X.
+ *  The DSP subsystem, which relies on the Teensy Audio Library, is
+ *  responsible for setting up the audio inputs and outputs for both
+ *  receive (RX) and transmit (TX) audio, maintaining the correct path
+ *  between inputs and outputs based on current TX/RX state, and setting
+ *  up audio filters and other audio-based modules for the RX and TX
+ *  audio paths.
+ */
+class UBitxDSP {
+
+  /********************************************************************
+   * Object creation/deletion
+   ********************************************************************/
+
+  public:  
+  UBitxDSP() {}
+
+  /********************************************************************
+   * Basic administration
+   ********************************************************************/
+
+  public:  
+  void begin();
+  void update();
+  void end();
+
+  /********************************************************************
+   * Transmit/Receive switching
+   ********************************************************************/
+  
+  public:
+  void rx();
+  inline void tx() { tx(txSrc); }
+  void tx(TxAudioIn src);
+
+  /********************************************************************
+   * General audio setup -- called via begin()
+   ********************************************************************/
+
+  protected:
+  virtual void setupRxAudio();
+  virtual void setupTxAudio();
+
+  /********************************************************************
+   * Receive audio chain
+   ********************************************************************/
+
+  // Basic control of RX audio inputs and outputs.
+  public:
+  void setRxInLevel(RxAudioCh ch, float level);     // Set the audio input level for a given channel.
+  void muteRxIn();                                  // Mute all RX audio input channels.
+  void muteRxIn(RxAudioCh ch);                      // Mute a specific RX audio input channel.
+  void unmuteRxIn(RxAudioCh ch);                    // Un-mute a specific RX audio input channel.
+  
+  void setLineOutLevel(float level);                // Set the line output level (0.0 - 1.0).
+  void setUSBOutLevel(float level);                 // Set the USB output level (0.0 - 1.0).
+
+  /********************************************************************
+   * Transmit audio chain
+   ********************************************************************/
+
+  // Basic control of TX audio inputs and outputs.
+  public:
+  void setTxInLevel(TxAudioCh ch, float level); // Set the audio input level for a given channel.
+  void muteTxIn();                              // Mute all TX audio input channels.
+  void muteTxIn(TxAudioCh ch);                  // Mute a specific TX audio input channel.
+  void unmuteTxIn(TxAudioCh ch);                // Un-mute a specific TX audio input channel.
+  
+  void setTxOutLevel(float level);              // Set the TX audio output level.
+  void muteTxOut();                             // Mute the TX audio output.
+  void unmuteTxOut();                           // Un-mute the TX audio output.
+
+  void setLineInLevel(float level);                // Set the line input level (0.0 - 1.0).
+  void setUSBInLevel(float level);                 // Set the USB input level (0.0 - 1.0).
+
+  // Transmit audio selection (may be overriden at actual transmit time).
+  public:
+  void setTxAudioIn(TxAudioIn src, bool isTemp = false);  // Select a specific TX audio input path, and identify it as permanent or temporary.
+  inline TxAudioIn getTxAudioIn() const { return txSrc; } // Return the current TX audio input.
+
+  // Mic input controls.
+  public:
+  inline void setMicGain(float level) { micGain = static_cast<unsigned>(level * 63.0); } // Set the mic gain.
+
+  /********************************************************************
+   * Receive audio filter (band pass)
+   ********************************************************************/
+
+  public:
+  void bypassRxFilter();
+  void updateRxFilter();
+  
+  void setRxFilter(float lo, float hi);
+  void setRxFilterLo(float lo);
+  void setRxFilterHi(float hi);
+  void setRxFilterWidth(float width);
+  void setRxFilterCenter(float center);
+
+  /*!
+   *  Get the current low frequency bound of the RX band pass filter.
+   *  @return The low frequency bound.
+   */
+  inline float getRxFilterLo() const { return state.rxFilterLo; }
+
+  /*!
+   *  Get the current high frequency bound of the RX band pass filter.
+   *  @return The high frequency bound.
+   */
+  inline float getRxFilterHi() const { return state.rxFilterHi; }
+
+  /*!
+   *  Get the current width of the RX band pass filter.
+   *  @return The filter width.
+   */
+  inline float getRxFilterWidth() const { return state.rxFilterHi - state.rxFilterLo; }
+
+  /*!
+   *  Get the current center frequency of the RX band pass filter.
+   *  @return The center frequency.
+   */
+  inline float getRxFilterCenter() const { return (state.rxFilterHi + state.rxFilterLo) / 2.0; }
+
+  /********************************************************************
+   * Transmit Voice-Operated-Switch (VOX)
+   ********************************************************************/
+
+  public:
+  float getVoxLevel() const;
+
+  /********************************************************************
+   * Private state
+   ********************************************************************/
+   
+  private:
+  DSPState state;
+
+  bool isTx = false;
+  TxAudioIn txSrc = MIC_IN;
+  TxAudioIn txSrcLatched = MIC_IN;
+
+  short coefficients[NUM_COEFFICIENTS] = {0};
+  
+  elapsedMillis sinceLastUpdate = 0;
+  float usbVol = 0.0;
+
+  unsigned micGain = 0;
+
+  float prevVox = 0.0;
+};
+
+extern UBitxDSP& DSP;
+
+#endif
+
+//======================================================================
+// EOF
+//======================================================================

TeensyDSP/Debug.h

@@ -0,0 +1,20 @@
+#ifndef __Debug_h__
+#define __Debug_h__
+
+#define DEBUG
+
+#ifdef DEBUG
+#define DBGPRINT(MSG) do { Serial.print("DBG: "); Serial.print(MSG); } while (0)
+#define DBGPRINTLN(MSG) do { Serial.print("DBG: "); Serial.println(MSG); } while (0)
+#define DBGNEWLINE() do { Serial.println(); } while (0)
+#define DBGCMD(CMD) do { Serial.print("DBG: "); Serial.println(#CMD); CMD; } while (0)
+#define IFDEBUG(CMD) do { CMD; } while (0)
+#else
+#define DBGPRINT(MSG) do {} while (0)
+#define DBGPRINTLN(MSG) do {} while (0)
+#define DBGNEWLINE() do {} while (0)
+#define DBGCMD(CMD) do { CMD; } while (0)
+#define IFDEBUG(CMD) do {} while (0)
+#endif
+
+#endif

TeensyDSP/HamFuncs.h

@@ -0,0 +1,186 @@
+#ifndef __HamFuncs_h__
+#define __HamFuncs_h__
+
+/**********************************************************************/
+
+#ifndef HF_PWR_DEFAULT_LOAD
+#define HF_PWR_DEFAULT_LOAD 50.0
+#endif
+
+#ifndef HF_VSWR_MAX_REPORTED
+#define HF_VSWR_MAX_REPORTED 9.9
+#endif
+
+#ifndef HF_BRIDGE_FWD_VRECT
+#define HF_BRIDGE_FWD_VRECT 0.25
+#endif
+
+#ifndef HF_BRIDGE_FWD_TURNS
+#define HF_BRIDGE_FWD_TURNS 10.0
+#endif
+
+#ifndef HF_BRIDGE_REV_VRECT
+#define HF_BRIDGE_REV_VRECT 0.25
+#endif
+
+#ifndef HF_BRIDGE_REV_TURNS
+#define HF_BRIDGE_REV_TURNS 10.0
+#endif
+
+#ifndef HF_ADC_DEFAULT_BITS
+#define HF_ADC_DEFAULT_BITS 10
+#endif
+
+#ifndef HF_ADC_DEFAULT_VREF
+#define HF_ADC_DEFAULT_VREF 3.3
+#endif
+
+/**********************************************************************/
+
+namespace HF {
+
+  const float    pwrDefaultLoad  = HF_PWR_DEFAULT_LOAD;
+  const float    vswrMaxReported = HF_VSWR_MAX_REPORTED;
+  const float    bridgeFwdVrect  = HF_BRIDGE_FWD_VRECT;
+  const float    bridgeFwdTurns  = HF_BRIDGE_FWD_TURNS;
+  const float    bridgeRevVrect  = HF_BRIDGE_REV_VRECT;
+  const float    bridgeRevTurns  = HF_BRIDGE_REV_TURNS;
+  const unsigned adcDefaultBits  = HF_ADC_DEFAULT_BITS;
+  const float    adcDefaultVref  = HF_ADC_DEFAULT_VREF;
+
+  const float rms = sqrt(2.0) / 2.0;   
+  
+  /********************************************************************/
+
+  /*!
+   *  @brief  Calculate the output voltage of a resistive divider 
+   *          network, given the input voltage and the values of the 
+   *          resistors. The input voltage is applied to R1, the output
+   *          voltage is taken from the junction of R1 and R2, and R2 is
+   *          connected to ground.
+   *  @param  Vin
+   *          Input voltage.
+   *  @param  R1
+   *          Input resistor (ohms). Input voltage is measured between
+   *          the top of this resistor and ground.
+   *  @param  R2
+   *          Output resistor (ohms). Output voltage is measured
+   *          between the top of this resistor and ground.
+   *  @return Output voltage.
+   */
+  inline float divOut(float Vin, float R1, float R2) {
+    return Vin * R2 / (R1 + R2);
+  }
+
+  /*!
+   *  @brief  Calculate the input voltage of a resistive divider 
+   *          network, given the output voltage and the values of the 
+   *          resistors. The input voltage is applied to R1, the output 
+   *          voltage is taken from the junction of R1 and R2, and R2 is
+   *          connected to ground.
+   *  @param  Vout
+   *          Output voltage.
+   *  @param  R1
+   *          Input resistor (ohms). Input voltage is measured between 
+   *          the top of this resistor and ground.
+   *  @param  R2
+   *          Output resistor (ohms). Output voltage is measured between
+   *          the top of this resistor and ground.
+   *  @return Input voltage.
+   */
+  inline float divIn(float Vout, float R1, float R2) {
+    return Vout * (R1 + R2) / R2;
+  }
+
+  /*!
+   *  @brief  Calculate and return the power in watts, given a
+   *          resistance and the voltage across the resistance.
+   *  @param  V
+   *          Voltage across the load.
+   *  @param  R
+   *          (optional) Resistance of the load (ohms).  If not provided,
+   *          a default is used (HF_PWR_DEFAULT_LOAD).
+   *  @return Power dissipated (watts).  This is calculated as
+   *          P = V^2/R.
+   */
+  inline float P(float V, float R = pwrDefaultLoad) {
+    return (V * V) / R;
+  }
+
+  /*!
+   *  @brief  Calculate and return the Voltage Standing Wave Ratio
+   *          (VSWR) based on the given forward and reverse voltages.
+   *  @param  Vfwd
+   *          Measured forward voltage.
+   *  @param  Vrev
+   *          Measured reverse voltage.
+   *  @param  VSWRmax
+   *          (optional) Maximum reported VSWR.  The output will be
+   *          clamped to this value if necessary (HF_VSWR_MAX_REPORTED).
+   *  @return Voltage Standing Wave Ratio (VSWR).  This is calculated 
+   *          as VSWR = (Vfwd + Vrev) / (Vfwd - Vrev).
+   */
+  inline float VSWR(float Vfwd, float Vrev, float VSWRmax = vswrMaxReported) {
+    if (Vfwd - Vrev == 0.0) {
+      return VSWRmax;
+    } else {
+      float swr = (Vfwd + Vrev) / (Vfwd - Vrev);
+      return (swr > VSWRmax ? VSWRmax : swr);
+    }
+  }
+
+  /*!
+   *  @brief  Calculate and return the forward RMS input voltage across
+   *          a Stockton bridge.
+   *  @param  Vout
+   *          Rectified output voltage (e.g. read via an ADC).
+   *  @param  Vrect
+   *          (optional) Voltage drop across the rectifier diode.  If
+   *          not provided, a default is used (HF_BRIDGE_FWD_VRECT).
+   *  @param  turns
+   *          (optional) Coupling transformer turns ratio. If not 
+   *          provided, a default is used (HF_BRIDGE_FWD_TURNS).
+   *  @return Input voltage (i.e. the actual forward voltage).
+   */
+  inline float bridgeFwd(float Vout, float Vrect = bridgeFwdVrect, float turns = bridgeFwdTurns) {
+    return (Vout + Vrect) * turns * rms;
+  }
+
+  /*!
+   *  @brief  Calculate and return the reverse RMS input voltage across
+   *          a Stockton bridge.
+   *  @param  Vout
+   *          Rectified output voltage (e.g. read via an ADC).
+   *  @param  Vrect
+   *          (optional) Voltage drop across the rectifier diode.  If
+   *          not provided, a default is used (HF_BRIDGE_REV_VRECT).
+   *  @param  turns
+   *          (optional) Coupling transformer turns ratio. If not 
+   *          provided, a default is used (HF_BRIDGE_REV_TURNS).
+   *  @return Input voltage (i.e. the actual reverse voltage).
+   */
+  inline float bridgeRev(float Vout, float Vrect = bridgeRevVrect, float turns = bridgeRevTurns) {
+    return (Vout + Vrect) * turns * rms;
+  }
+
+  /*!
+   *  @brief  Calculate and return the input voltage to an Analog-to-
+   *          Digital Converter (ADC) given the resolution (number of
+   *          bits) and the voltage reference of the ADC.
+   *  @param  counts
+   *          Value of the ADC measurement (in unitless counts).
+   *  @param  res
+   *          (optional) Resolution (in bits) of the ADC.  If not
+   *          provided, the default is used (HF_ADC_DEFAULT_BITS).
+   *  @param  Vref
+   *          (optional) Voltage reference of the ADC.  If not
+   *          provided, the default is used (HF_ADC_DEFAULT_VREF).
+   *  @return Input voltage to the ADC.
+   */
+  inline float adcIn(unsigned counts, unsigned res = adcDefaultBits, float Vref = adcDefaultVref) {
+    return float(counts) * Vref / float(1 << res);
+  }
+
+};
+
+#endif

TeensyDSP/Keyer.cpp

@@ -0,0 +1,185 @@
+//======================================================================
+//
+//  nanoIO paddle keyer (c) 2018, David Freese, W1HKJ
+//
+//  based on code from Iambic Keyer Code Keyer Sketch
+//  Copyright (c) 2009 Steven T. Elliott
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2.1 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details:
+//
+//  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+//  Boston, MA  02111-1307  USA
+//
+//======================================================================
+
+#include <Arduino.h>
+//#include "TimerOne.h"
+//#include "config.h"
+#include "Keyer.h"
+
+const uint8_t LP_in = KEYER_LEFT_PADDLE_PIN;
+const uint8_t RP_in = KEYER_RIGHT_PADDLE_PIN;
+
+//#define ST_Freq 600   // Set the Sidetone Frequency to 600 Hz
+
+//======================================================================
+//  keyerControl bit definitions
+//
+#define     DIT_L      0x01     // Dit latch
+#define     DAH_L      0x02     // Dah latch
+#define     DIT_PROC   0x04     // Dit is being processed
+#define     PDLSWAP    0x08     // 0 for normal, 1 for swap
+//======================================================================
+//
+//  State Machine Defines
+
+enum KSTYPE { IDLE, CHK_DIT, CHK_DAH, KEYED_PREP, KEYED, INTER_ELEMENT };
+
+UBitxKeyer::UBitxKeyer(int wpm, float weight):
+speed(wpm), symWeight(weight)
+{
+  // Setup outputs
+  pinMode(LP_in, INPUT_PULLUP);            // sets Left Paddle digital pin as input
+  pinMode(RP_in, INPUT_PULLUP);            // sets Right Paddle digital pin as input
+
+  keyerState = IDLE;
+  keyerControl = 0;
+  keyMode = IAMBICA;
+  keyDown = false;
+
+  calcRatio();
+}
+
+// Calculate the length of dot, dash and silence
+void UBitxKeyer::calcRatio()
+{
+  float w = (1 + symWeight) / (symWeight -1);
+  spaceLen = (1200 / speed);
+  dotLen = spaceLen * (w - 1);
+  dashLen =  (1 + w) * spaceLen;
+}
+
+void UBitxKeyer::setWPM(int wpm)
+{
+  speed = wpm;
+  calcRatio();
+}
+
+//======================================================================
+//    Latch paddle press
+//======================================================================
+
+void UBitxKeyer::updatePaddleLatch()
+{
+  if (digitalRead(LP_in) == LOW) {
+    keyerControl |= DIT_L;
+  }
+  if (digitalRead(RP_in) == LOW) {
+    keyerControl |= DAH_L;
+  }
+}
+
+bool UBitxKeyer::doPaddles()
+{
+  if (keyMode == STRAIGHT) { // Straight Key
+    if ((digitalRead(LP_in) == LOW) || (digitalRead(RP_in) == LOW)) {
+      keyDown = true;
+      return true;
+    } else {
+      keyDown = false;
+    }
+    return false;
+  }
+
+  // keyerControl contains processing flags and keyer mode bits
+  // Supports Iambic A and B
+  // State machine based, uses calls to millis() for timing.
+  switch (keyerState) {
+    case IDLE:      // Wait for direct or latched paddle press
+      if ((digitalRead(LP_in) == LOW) || (digitalRead(RP_in) == LOW) || (keyerControl & 0x03)) {
+        updatePaddleLatch();
+        keyerState = CHK_DIT;
+        // letting this fall through // return true;
+      } else {
+        return false;
+      }
+//      break;
+
+    case CHK_DIT:      // See if the dit paddle was pressed
+      if (keyerControl & DIT_L) {
+        keyerControl |= DIT_PROC;
+        ktimer = dotLen;
+        keyerState = KEYED_PREP;
+        return true;
+      } else { // fall through
+        keyerState = CHK_DAH;
+      }
+      
+    case CHK_DAH:      // See if dah paddle was pressed
+      if (keyerControl & DAH_L) {
+        ktimer = dashLen;
+        keyerState = KEYED_PREP;
+        // letting this fall through // return true;
+      } else {
+        keyerState = IDLE;
+        return false;
+      }
+//      break;
+
+    case KEYED_PREP:                     // Assert key down, start timing
+                                         // state shared for dit or dah
+      keyDown = true;
+      ktimer += millis();                // set ktimer to interval end time
+      keyerControl &= ~(DIT_L + DAH_L);  // clear both paddle latch bits
+      keyerState = KEYED;                // next state
+      // letting this fall through // return true;
+//      break;
+
+    case KEYED:                          // Wait for timer to expire
+      if (millis() > ktimer) {           // are we at end of key down ?
+        keyDown = false;
+        ktimer = millis() + spaceLen;  // inter-element time
+        keyerState = INTER_ELEMENT;      // next state
+        // letting this fall through // return true;
+      } else if (keyMode == IAMBICB) {     // Iambic B Mode ?
+        updatePaddleLatch();           // yes, early paddle latch in Iambic B mode
+      } else {
+        return true;
+      }
+//      break;
+
+    case INTER_ELEMENT:                 // Insert time between dits/dahs
+      updatePaddleLatch();              // latch paddle state
+      if (millis() > ktimer) {          // are we at end of inter-space ?
+        if (keyerControl & DIT_PROC) {  // was it a dit or dah ?
+          keyerControl &= ~(DIT_L + DIT_PROC);   // clear two bits
+          keyerState = CHK_DAH;                  // dit done, check for dah
+          return true;
+        } else {
+          keyerControl &= ~(DAH_L);     // clear dah latch
+          keyerState = IDLE;            // go idle
+          return false;
+        }
+      } else {
+        return true;
+      }
+//      break;
+  }
+
+  return false; // resolve compiler warning; do we ever get here?
+}
+
+UBitxKeyer basicKeyer(15, 3.0);
+UBitxKeyer& Keyer = basicKeyer;
+
+//======================================================================
+// EOF
+//======================================================================

TeensyDSP/Keyer.h

@@ -0,0 +1,79 @@
+//**********************************************************************
+//
+// Keyer, a part of nanoIO
+//
+//  nanoIO paddle keyer (c) 2018, David Freese, W1HKJ
+//
+//  based on code from Iambic Keyer Code Keyer Sketch
+//  Copyright (c) 2009 Steven T. Elliott
+//
+// nanoIO is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// nanoIO is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with fldigi.  If not, see <http://www.gnu.org/licenses/>.
+//
+//Revisions:
+//
+//1.0.0:  Initial release
+//
+//**********************************************************************
+
+
+#ifndef __Keyer_h__
+#define __Keyer_h__
+
+#define IAMBICA 0
+#define IAMBICB 1
+#define STRAIGHT 2
+
+#define KEYER_LEFT_PADDLE_PIN   17
+#define KEYER_RIGHT_PADDLE_PIN  16
+
+class UBitxKeyer
+{
+public:
+  UBitxKeyer(int wpm, float weight);
+  //void cw_pin(int pin);
+  //void ptt_pin(int pin);
+  void setWPM(int wpm);
+  inline void setMode(int mode) { keyMode = mode; }
+  inline int  getMode() { return keyMode; }
+  inline bool isDown() { return keyDown; }
+//  void setWeight();
+ 
+  bool doPaddles();
+
+private:
+  void calcRatio();
+  void updatePaddleLatch();
+
+  bool keyDown;
+  
+  long ktimer;
+
+  int speed;
+  int dashLen;  // Length of dash
+  int dotLen;   // Length of dot
+  int spaceLen; // Length of space
+  float symWeight;
+
+  char keyerControl;
+  char keyerState;
+  int  keyMode;
+};
+
+extern UBitxKeyer& Keyer;
+
+#endif
+
+//======================================================================
+// EOF
+//======================================================================

TeensyDSP/Nextion.cpp

@@ -0,0 +1,141 @@
+#include "Nextion.h"
+
+char L_nowdisp = -1;          //Sended nowdisp
+char L_vfoActive;             //vfoActive
+unsigned long L_vfoCurr;      //vfoA
+byte L_vfoCurr_mode;          //vfoA_mode
+unsigned long L_vfoA;         //vfoA
+byte L_vfoA_mode;             //vfoA_mode
+unsigned long L_vfoB;         //vfoB
+byte L_vfoB_mode;             //vfoB_mode
+char L_ritOn;
+unsigned long L_ritTxFrequency; //ritTxFrequency
+char L_inTx;
+byte L_isDialLock;            //byte isDialLock
+byte  L_Split;            //isTxType
+byte  L_TXStop;           //isTxType
+byte L_tuneStepIndex;     //byte tuneStepIndex
+byte L_scaledSMeter;      //scaledSMeter
+unsigned long L_sideTone; //sideTone
+byte L_cwKeyType;          //L_cwKeyType 0: straight, 1 : iambica, 2: iambicb
+unsigned int L_cwSpeed;   //cwSpeed
+byte L_cwDelayTime;       //cwDelayTime
+byte L_delayBeforeCWStartTime;  //byte delayBeforeCWStartTime
+byte L_attLevel;
+byte L_isIFShift;             //1 = ifShift, 2 extend
+int L_ifShiftValue;
+byte L_sdrModeOn;
+byte scaledSMeter = 0;
+float calcVSWR = 0.0;
+float L_calcVSWR = 0.0;
+byte scaledVSWR = 0;
+byte L_scaledVSWR = 0;
+float fwdPower = 0;
+float L_fwdPower = 0;
+float revPower = 0;
+float L_revPower = 0;
+
+
+//Control must have prefix 'v' or 's'
+char softSTRHeader[11] = {'p', 'm', '.', 's', '0', '.', 't', 'x', 't', '=', '\"'};
+char softINTHeader[10] = {'p', 'm', '.', 'v', '0', '.', 'v', 'a', 'l', '='};
+
+char softTemp[20];
+
+/*!
+    @brief  Send a string or numeric variable to the Nextion LCD.
+    @param  varType
+            The type of the variable being sent to the Nextion LCD.
+    @param  varIndex
+            The index (ID) of the variable being sent to the Nextion LCD.
+ */
+void sendHeader(char varType, char varIndex)
+{
+  if (varType == SWS_HEADER_STR_TYPE)
+  {
+    softSTRHeader[4] = varIndex;
+    for (unsigned i = 0; i < sizeof(softSTRHeader)/sizeof(softSTRHeader[0]); i++)
+      Serial1.write(softSTRHeader[i]);
+  }
+  else
+  {
+    softINTHeader[4] = varIndex;
+    for (unsigned i = 0; i < sizeof(softINTHeader)/sizeof(softINTHeader[0]); i++)
+      Serial1.write(softINTHeader[i]);
+  }
+}
+
+/*!
+    @brief  Send an unsigned long variable to the Nextion LCD.
+    @param  varIndex
+            The index (ID) of the variable being sent to the Nextion LCD.
+    @param  sendValue
+            The value of the variable being sent to the Nextion LCD.
+ */
+void sendCommandUL(char varIndex, unsigned long sendValue)
+{
+  sendHeader(SWS_HEADER_INT_TYPE, varIndex);
+
+  memset(softTemp, 0, 20);
+  ultoa(sendValue, softTemp, DEC);
+  Serial1.print(softTemp);
+  Serial1.write(0xff);
+  Serial1.write(0xff);
+  Serial1.write(0xff);  
+}
+
+/*!
+    @brief  Send a (signed) long variable to the Nextion LCD.
+    @param  varIndex
+            The index (ID) of the variable being sent to the Nextion LCD.
+    @param  sendValue
+            The value of the variable being sent to the Nextion LCD.
+ */
+void sendCommandL(char varIndex, long sendValue)
+{
+  sendHeader(SWS_HEADER_INT_TYPE, varIndex);
+
+  memset(softTemp, 0, 20);
+  ltoa(sendValue, softTemp, DEC);
+  Serial1.print(softTemp);
+  Serial1.write(0xff);
+  Serial1.write(0xff);
+  Serial1.write(0xff);  
+}
+
+/*!
+    @brief  Send a string variable to the Nextion LCD.
+    @param  varIndex
+            The index (ID) of the variable being sent to the Nextion LCD.
+    @param  sendValue
+            The value of the variable being sent to the Nextion LCD.
+ */
+void sendCommandStr(char varIndex, const char* sendValue)
+{
+  sendHeader(SWS_HEADER_STR_TYPE, varIndex);
+  
+  Serial1.print(sendValue);
+  Serial1.write('\"');
+  Serial1.write(0xFF);
+  Serial1.write(0xFF);
+  Serial1.write(0xFF);
+}
+
+unsigned char softBuff1Num[14] = {'p', 'm', '.', 'c', '0', '.', 'v', 'a', 'l', '=', 0, 0xFF, 0xFF, 0xFF};
+
+/*!
+    @brief  Send a single digit variable to the Nextion LCD.
+    @param  varIndex
+            The index (ID) of the variable being sent to the Nextion LCD.
+            Values 0~9 are: Mode, nowDisp, ActiveVFO, IsDialLock, IsTxtType, IsSplitType.
+    @param  sendValue
+            The value of the variable being sent to the Nextion LCD.
+ */
+void sendCommand1Num(char varIndex, char sendValue)
+{
+  softBuff1Num[4] = varIndex;
+  softBuff1Num[10] = sendValue + 0x30;  // convert to character digit
+
+  for (unsigned i = 0; i < sizeof(softBuff1Num)/sizeof(softBuff1Num[0]); i++)
+    Serial1.write(softBuff1Num[i]);
+}

TeensyDSP/Nextion.h

@@ -0,0 +1,126 @@
+#ifndef __Nextion_h__
+#define __Nextion_h__
+
+#include <Arduino.h>
+#include "Debug.h"
+
+#define SWS_HEADER_CHAR_TYPE 'c'  //1Byte Protocol Prefix
+#define SWS_HEADER_INT_TYPE  'v'  //Numeric Protocol Prefex
+#define SWS_HEADER_STR_TYPE  's'  //for TEXT Line compatiable Character LCD Control
+
+//===================================================================
+//Begin of Nextion LCD Protocol
+//
+// v0~v9, va~vz : Numeric (Transceiver -> Nextion LCD)
+// s0~s9  : String (Text) (Transceiver -> Nextion LCD)
+// vlSendxxx, vloxxx: Reserve for Nextion (Nextion LCD -> Transceiver)
+//
+//===================================================================
+
+#define CMD_NOW_DISP      '0' //c0
+extern char L_nowdisp;          //Sended nowdisp
+
+#define CMD_VFO_TYPE      'v' //cv
+extern char L_vfoActive;             //vfoActive
+
+#define CMD_CURR_FREQ     'c' //vc
+extern unsigned long L_vfoCurr;      //vfoA
+#define CMD_CURR_MODE     'c' //cc
+extern byte L_vfoCurr_mode;          //vfoA_mode
+
+#define CMD_VFOA_FREQ     'a' //va
+extern unsigned long L_vfoA;         //vfoA
+#define CMD_VFOA_MODE     'a' //ca
+extern byte L_vfoA_mode;             //vfoA_mode
+
+#define CMD_VFOB_FREQ     'b' //vb
+extern unsigned long L_vfoB;         //vfoB
+#define CMD_VFOB_MODE     'b' //cb
+extern byte L_vfoB_mode;             //vfoB_mode
+
+#define CMD_IS_RIT        'r' //cr
+extern char L_ritOn;
+#define CMD_RIT_FREQ      'r' //vr
+extern unsigned long L_ritTxFrequency; //ritTxFrequency
+
+#define CMD_IS_TX         't' //ct
+extern char L_inTx;
+
+#define CMD_IS_DIALLOCK   'l' //cl
+extern byte L_isDialLock;            //byte isDialLock
+
+#define CMD_IS_SPLIT      's' //cs
+extern byte  L_Split;            //isTxType
+#define CMD_IS_TXSTOP     'x' //cx
+extern byte  L_TXStop;           //isTxType
+
+#define CMD_TUNEINDEX     'n' //cn
+extern byte L_tuneStepIndex;     //byte tuneStepIndex
+
+#define CMD_SMETER        'p' //cs
+extern byte L_scaledSMeter;      //scaledSMeter
+
+#define CMD_SIDE_TONE     't' //vt
+extern unsigned long L_sideTone; //sideTone
+#define CMD_KEY_TYPE      'k' //ck
+extern byte L_cwKeyType;          //L_cwKeyType 0: straight, 1 : iambica, 2: iambicb
+
+#define CMD_CW_SPEED      's' //vs
+extern unsigned int L_cwSpeed;   //cwSpeed
+
+#define CMD_CW_DELAY      'y' //vy
+extern byte L_cwDelayTime;       //cwDelayTime
+
+#define CMD_CW_STARTDELAY 'e' //ve
+extern byte L_delayBeforeCWStartTime;  //byte delayBeforeCWStartTime
+
+#define CMD_ATT_LEVEL     'f' //vf
+extern byte L_attLevel;
+
+extern byte L_isIFShift;             //1 = ifShift, 2 extend
+#define CMD_IS_IFSHIFT    'i' //ci
+
+extern int L_ifShiftValue;
+#define CMD_IFSHIFT_VALUE 'i' //vi
+
+extern byte L_sdrModeOn;
+#define CMD_SDR_MODE      'j' //cj
+
+#define CMD_UBITX_INFO     'm' //cm  Complete Send uBITX Information
+
+//Once Send Data, When boot
+//arTuneStep, When boot, once send
+//long arTuneStep[5];
+
+#define CMD_AR_TUNE1      '1' //v1
+#define CMD_AR_TUNE2      '2' //v2
+#define CMD_AR_TUNE3      '3' //v3
+#define CMD_AR_TUNE4      '4' //v4
+#define CMD_AR_TUNE5      '5' //v5
+
+//int idleStep = 0;
+extern byte scaledSMeter;
+
+extern float calcVSWR;
+extern float L_calcVSWR;
+
+extern byte scaledVSWR;
+extern byte L_scaledVSWR;
+
+extern float fwdPower;
+extern float L_fwdPower;
+
+extern float revPower;
+extern float L_revPower;
+
+void sendHeader(char varType, char varIndex);
+void sendCommandUL(char varIndex, unsigned long sendValue);
+void sendCommandL(char varIndex, long sendValue);
+void sendCommandStr(char varIndex, const char* sendValue);
+void sendCommand1Num(char varIndex, char sendValue);
+
+//=======================================================
+//END OF Nextion Protocol
+//=======================================================
+
+#endif

TeensyDSP/Rig.cpp

@@ -0,0 +1,3 @@
+#include "Rig.h"
+
+UBitxRig Rig;

TeensyDSP/Rig.h

@@ -0,0 +1,73 @@
+#ifndef __Rig_h__
+#define __Rig_h__
+
+#include "RigState.h"
+
+struct RigState {
+};
+
+class UBitxRig {
+  public:
+  inline void begin() {}
+  inline void update() {}
+  
+  inline unsigned getFreqA() const { return radState.getFreqA(); }
+  inline unsigned getFreqB() const { return radState.getFreqB(); }
+  inline int getRIT() const { return radState.getRIT(); }
+  inline int getXIT() const { return radState.getXIT(); }
+  inline bool isVFOA() const { return radState.isVFOA(); }
+  inline bool isVFOB() const { return radState.isVFOB(); }
+  inline bool isSplit() const { return radState.isSplit(); }
+  inline bool isRIT() const { return radState.isRIT(); }
+  inline bool isXIT() const { return radState.isXIT(); }
+  inline bool isModeCWAny() const { return radState.isModeCWAny(); }
+  inline bool isModeCW() const { return radState.isModeCW(); }
+  inline bool isModeCWR() const { return radState.isModeCWR(); }
+  inline bool isModeUSB() const { return radState.isModeUSB(); }
+  inline bool isModeLSB() const { return radState.isModeLSB(); }
+  inline bool isAI() const { return autoInfo; }
+
+  inline void setFreqA(unsigned freq) { catState.setFreqA(freq); }
+  inline void setFreqB(unsigned freq) { catState.setFreqB(freq); }
+  inline void setRIT(int freq) { catState.setRIT(freq); }
+  inline void setXIT(int freq) { catState.setXIT(freq); }
+  inline void setVFOA() { catState.setVFOA(); }
+  inline void setVFOB() { catState.setVFOB(); }
+  inline void setSplitOn() { catState.setSplitOn(); }
+  inline void setSplitOff() { catState.setSplitOff(); }
+  inline void setRITOn() { catState.setRITOn(); }
+  inline void setRITOff() { catState.setRITOff(); }
+  inline void setXITOn() { catState.setXITOn(); }
+  inline void setXITOff() { catState.setXITOff(); }
+  inline void setCW() { catState.setCW(); }
+  inline void setCWR() { catState.setCWR(); }
+  inline void setUSB() { catState.setUSB(); }
+  inline void setLSB() { catState.setLSB(); }
+
+  inline void setAI(bool on) { autoInfo = on; }
+  inline void aiOn() { autoInfo = true; }
+  inline void aiOff() { autoInfo = false; }
+
+  inline UBitxRigState& cat() { return catState; }
+  inline UBitxRigState& rad() { return radState; }
+
+  /********************************************************************/
+  // New functional/mode-based Rig methods
+
+  // AG
+  //void setVolOut(uint8_t level);
+  //uint8_t getVolOut();
+
+  // BD/BU
+  //void setBand();
+  //void getBand();
+
+  private:
+  UBitxRigState catState;
+  UBitxRigState radState;  
+  bool autoInfo = false;  // TODO: Move this to rig state struct
+};
+
+extern UBitxRig Rig;
+
+#endif

TeensyDSP/RigState.cpp

@@ -0,0 +1,416 @@
+/*!
+ *  @file     RigState.cpp
+ *  
+ *  @mainpage uBITX V5X Software - RigState
+ *  
+ *  @section  introsec Introduction
+ *  
+ *  TBD
+ *  
+ *  @section  dependencies Dependencies
+ *  
+ *  TBD
+ *  
+ *  @section  author Author
+ *  
+ *  Written by Rob "Scrape" French, KC4UPR
+ *  
+ *  @section  license License
+ *  
+ *  TBD
+ */
+
+#include "Debug.h"
+#include "RigState.h"
+
+/***********************************************************************
+ * COMMON FUNCTIONS
+ * 
+ * The following are all common to RigState objects, whether on the
+ * Raduino or on the TeensyDSP.
+ **********************************************************************/
+
+static uint32_t zeroes[1] = {0};  // used to transmit zeroes
+
+/*!
+ *  @brief  Begin using the RigState object.  In order to force an 
+ *          initial update (i.e. sending current state to the remote 
+ *          device), all fields are initially marked dirty.
+ */
+void UBitxRigState::begin() {
+  setDirty();
+}
+
+/***********************************************************************
+ * RADUINO FUNCTIONS
+ * 
+ * The following are specific to the Raduino implementation.  Note that
+ * this depends on the use of the TEENSYDUINO #define, which may result
+ * in a fragile implementation for other development environments (e.g.
+ * if the normal Arduino IDE is not being used).
+ **********************************************************************/
+
+#ifndef TEENSYDUINO
+
+#include <Wire.h>
+#include "ubitx.h"
+#include "ubitx_eemap.h"
+
+extern unsigned long frequency, ritRxFrequency, ritTxFrequency;
+extern unsigned long vfoA;
+extern unsigned long vfoB;
+extern char cwMode;
+extern char isUSB;
+extern char vfoActive;
+extern char ritOn;
+extern char splitOn;
+extern char inTx;
+void setFrequency(unsigned long);
+
+/*!
+ *  @brief  Send the RigState from the Raduino to the TeensyDSP.  The
+ *          basic process is:  (1) read in any updated (dirty) data
+ *          from the Raduino's state variables; (2) transmit the dirty
+ *          data to the TeensyDSP; (2a) for clean data, zeroes are
+ *          transmitted; (3) mark all data as clean.
+ */
+void UBitxRigState::send_RIGINF() {
+  readDirty();
+  Wire.beginTransmission(I2CMETER_ADDR);
+  Wire.write(I2CMETER_RIGINF);
+  for (RigStateWord i = DIRTY_WORD; i < NUM_WORDS; i++) {
+    if (i == DIRTY_WORD || isDirty(i)) {
+      // always send the current dirty bits
+      // or, bytes for updated (dirty) fields
+      Wire.write((byte*)&data[i], sizeof(uint32_t));
+    } else {
+      // otherwise, send out zeroes
+      Wire.write((byte*)&zeroes, sizeof(uint32_t));
+      //----------------------------------------------------------------
+      // NOTE:  I am sending these zeroed out fields under a possibly
+      // mistaken assumption that in doing so, I will be sending a 
+      // constant voltage on the SDA line most of the time, i.e. no
+      // bit changes, and so this will help reduce noise generated by
+      // I2C traffic (since most of the time there will be no updates.)
+      //----------------------------------------------------------------
+    }
+  }
+  Wire.endTransmission();  
+  IFDEBUG( serialHexState("Sent") );
+  //IFDEBUG( serialPrettyState("Sent") );
+  setClean();
+}
+
+//  delay(1);   // 1ms - some delay required between ending transmission and requesting?
+
+/*!
+ *  @brief  Receive the RigState from the TeensyDSP.  This generally
+ *          reflects changes due to CAT transmission to the TeensyDSP.
+ *  @param  numBytes
+ *          Number of bytes received from the TeensyDSP.
+ */
+void UBitxRigState::receive_RIGINF(int numBytes) {
+  // Retrieve all of the deltas.  Mark any received fields as dirty.  It
+  // is assumed that send_RIGINF() was called immedaitely before this,
+  // so the fields are already clean.
+  byte* ptr = (byte*)&data;
+  Wire.requestFrom(I2CMETER_ADDR, sizeof(data));
+  for (RigStateWord i = DIRTY_WORD; i < NUM_WORDS && Wire.available(); i++) {
+    for (size_t j = 0; j < sizeof(uint32_t) && Wire.available(); j++) {
+      byte incomingByte = Wire.read();
+      if (i == DIRTY_WORD || isDirty(i)) {
+        // always overwrite the dirty bits
+        // and, update bytes for fields marked dirty
+        *ptr = incomingByte;
+      }
+      ptr++;
+    }
+  }
+  writeDirty();
+  IFDEBUG( serialHexState("Rcvd") );
+  //IFDEBUG( serialPrettyState("Rcvd") );
+  setClean(); // They get marked dirty as req'd during readDirty().
+}
+
+/*!
+ *  @brief  Write dirty fields from the RigState out to the Raduino 
+ *          variables.
+ */
+void UBitxRigState::writeDirty() {
+  // VFO A frequency
+  if (isDirty(VFOA_WORD)) {
+    if (vfoActive == VFO_A) {
+      setFrequency(getFreqA());
+    } else {
+      vfoA = getFreqA();
+    }    
+  }
+
+  // VFO B frequency
+  if (isDirty(VFOB_WORD)) {
+    if (vfoActive == VFO_B) {
+      setFrequency(getFreqB());
+    } else {
+      vfoB = getFreqB(); 
+    }    
+  }
+
+  // RIT and XIT frequencies
+  if (isDirty(OFFSETS_WORD)) {
+    // RIT
+    ritRxFrequency = getRIT() + ritTxFrequency;
+    if (ritOn == 1) {
+      if (inTx == 0) {
+        setFrequency(ritRxFrequency);
+      } else {
+        setFrequency(ritTxFrequency);
+      }
+    }
+    // XIT - TODO
+  }
+
+  // VFO A/B selection
+  if (isDirty(FLAGS_WORD)) {
+    char prev = vfoActive;
+    vfoActive = isVFOA() ? VFO_A : VFO_B;
+    if (vfoActive != prev) {
+      if (vfoActive == VFO_A) {
+        if (vfoA != frequency) {
+          setFrequency(vfoA);      
+        } 
+      } else if (vfoActive == VFO_B) {
+        if (vfoB != frequency) {
+          setFrequency(vfoB);
+        }
+      }
+    }  
+
+    // Split on/off
+    splitOn = isSplit() ? 1 : 0;
+
+    // RIT on/off
+    prev = ritOn;
+    ritOn = isRIT() ? 1 : 0;
+    if (ritOn != prev) {
+      if ((ritOn == 1) && (inTx == 0)) {
+        setFrequency(ritRxFrequency);
+      }
+    }
+
+    // XIT on/off
+    // TODO
+
+    // Mode
+    prev = (cwMode << 1) | isUSB;
+    isUSB = isModeUSB() ? 1 : 0;
+    if (isModeCW()) {
+      cwMode = 2; // 2 = cwu
+    } else if (isModeCWR()) {
+      cwMode = 1; // 1 = cwl
+    } else {
+      cwMode = 0; // 0 = no cw
+    }
+    if ((cwMode << 1) | isUSB != prev) {
+      setFrequency(frequency);
+    }
+  }
+}
+
+/*!
+ *  @brief  Read current Raduino variables into the RigState
+ *          (if they are changed) and set the appropriate dirty flags.
+ *  @param  r
+ *          RigState reference to put the values into.
+ */
+void UBitxRigState::readDirty() {
+  unsigned long freq;
+  short offset;
+  
+  // VFO A frequency
+  freq = (vfoActive == VFO_A) ? frequency : vfoA;
+  if (getFreqA() != freq) {
+    setFreqA(freq);
+  }
+
+  // VFO B frequency
+  freq = (vfoActive == VFO_B) ? frequency : vfoB;
+  if (getFreqB() != freq) {
+    setFreqB(freq);
+  }
+  
+  // RIT frequency
+  if (inTx) {
+    offset = ritRxFrequency - ritTxFrequency;
+  } else {
+    offset = frequency - ritTxFrequency;
+  }
+  if (getRIT() != offset) {
+    setRIT(offset);
+  }
+
+  // XIT frequency
+  offset = 0; // xitRxFrequency - frequency;
+  if (getXIT() != offset) {
+    setXIT(offset);
+  }
+ 
+  // VFO A/B selection
+  if (isVFOA() && vfoActive == VFO_B) {
+    setVFOB();
+  } else if (isVFOB() && vfoActive == VFO_A) {
+    setVFOA();
+  }
+
+  // Split selection
+  if (isSplit() && splitOn == 0) {
+    setSplitOff();
+  } else if (!isSplit() && splitOn != 0) {
+    setSplitOn();
+  }
+
+  // RIT selection
+  if (isRIT() && ritOn == 0) {
+    setRITOff();
+  } else if (!isRIT() && ritOn != 0) {
+    setRITOn();
+  }
+
+  // XIT selection
+  //setXITOff();
+  // TODO
+
+  // Mode
+  char prev = (isModeCW() ? 4 : 0) | (isModeCWR() ? 2 : 0) | (isModeUSB() ? 1 : 0);
+  char curr = (cwMode << 1) | isUSB;
+  if (curr != prev) {
+    if (cwMode == 2) {
+      setCW();
+    } else if (cwMode == 1) {
+      setCWR();
+    } else {
+      if (isUSB) {
+        setUSB();
+      } else {
+        setLSB();
+      }
+    }
+  }
+}
+
+/***********************************************************************
+ * TEENSYDSP FUNCTIONS
+ * 
+ * The following are specific to the TeensyDSP implementation.  Note
+ * that this depends on the use of the TEENSYDUINO #define, which may 
+ * result in a fragile implementation for other development environments 
+ * (e.g. if the normal Arduino IDE is not being used).
+ **********************************************************************/
+
+#else
+
+#include <i2c_t3.h>
+
+/*!
+ *  @brief  Receive RIGINF data from the Raduino.  This method should
+ *          be called on the TeensyDSP 'radState' (Raduino state) 
+ *          instance, when a RIGINF signal is received via I2C.  It 
+ *          receives the incoming data from the Raduino and updates the
+ *          state.
+ */
+void UBitxRigState::receive_RIGINF(int numBytes) {
+  byte* ptr = (byte*)&data;
+  setClean();  // we'll get new dirty bits via the I2C message
+  for (RigStateWord i = DIRTY_WORD; i < NUM_WORDS && Wire1.available(); i++) {
+    for (size_t j = 0; j < sizeof(uint32_t) && Wire1.available(); j++) {
+      byte incomingByte = Wire1.read();
+      if (i == DIRTY_WORD || isDirty(i)) {
+        // always overwrite the dirty bits
+        // and, update bytes for fields marked dirty
+        *ptr = incomingByte;
+      }
+      ptr++;
+    }
+  }
+
+  IFDEBUG( serialHexState("Rcvd") );
+  IFDEBUG( serialPrettyState("Rcvd") );
+}
+
+/**********************************************************************/
+/*!
+ *  @brief  Handle a RIGINF signal from the Raduino.  This method should
+ *          be called on the TeensyDSP 'catState' (CAT state) 
+ *          instance, when a RIGINF signal is received via I2C.  It 
+ *          sends a response to the Raduino via I2C, using the Wire1
+ *          interface.
+ */
+void UBitxRigState::send_RIGINF() {
+  for (RigStateWord i = DIRTY_WORD; i < NUM_WORDS; i++) {
+    if (i == DIRTY_WORD || isDirty(i)) {
+      // always send the current dirty bits
+      // or, bytes for updated (dirty) fields
+      Wire1.write((byte*)&data[i], sizeof(uint32_t));
+    } else {
+      // otherwise, send out zeroes
+      Wire1.write((byte*)&zeroes, sizeof(uint32_t));
+      //----------------------------------------------------------------
+      // NOTE:  I am sending these zeroed out fields under a possibly
+      // mistaken assumption that in doing so, I will be sending a 
+      // constant voltage on the SDA line most of the time, i.e. no
+      // bit changes, and so this will help reduce noise generated by
+      // I2C traffic (since most of the time there will be no updates.)
+      //----------------------------------------------------------------
+    }
+  }
+  IFDEBUG( serialHexState("Sent") );
+  IFDEBUG( serialPrettyState("Sent") );
+  setClean();  // now that we've sent them, they're clean
+  //--------------------------------------------------------------------
+  // TODO:  Need to look at possibly merging the two states together at
+  // this point.  The purpose would be to minimize the turnaround time
+  // for getting the most recent data to a CAT response.
+  //--------------------------------------------------------------------  
+}
+
+#endif
+
+#ifdef DEBUG
+
+char debugString[81] = {'\0'};
+
+void UBitxRigState::serialHexState(const char* label = "RigState") {
+  Serial.print(label);
+  sprintf(debugString, ": %#010lx, %#010lx, %#010lx, %#010lx, %#010lx", 
+    data[DIRTY_WORD], data[VFOA_WORD], data[VFOB_WORD], data[OFFSETS_WORD], data[FLAGS_WORD]);
+  Serial.println(debugString);
+}
+
+void UBitxRigState::serialPrettyState(const char* label = "RigState") {
+  Serial.println(label);
+  sprintf(debugString, "VFO A : %011ld %1c   /   VFO B : %011ld %1c", 
+    getFreqA(), isDirty(VFOA_WORD) ? 'D' : ' ', getFreqB(), isDirty(VFOB_WORD) ? 'D' : ' ');
+  Serial.println(debugString);
+  sprintf(debugString, "RIT   : %011ld %1c   /   XIT   : %011ld %1c", 
+    getRIT(), isDirty(OFFSETS_WORD) ? 'D' : ' ', getXIT(), isDirty(OFFSETS_WORD) ? 'D' : ' ');
+  Serial.println(debugString);
+  sprintf(debugString, "Split? %1c / VFO? %1c / RIT? %1c / XIT? %1c / Mode? %3s",
+    isSplit() ? 'Y' : 'N', isVFOA() ? 'A' : 'B', isRIT() ? 'Y' : 'N', isXIT() ? 'Y' : 'N',
+    isModeUSB() ? "USB" : (isModeLSB() ? "LSB" : (isModeCW() ? "CW " : (isModeCWR() ? "CWR" : "   "))));
+  Serial.println(debugString);
+}
+
+#endif
+
+
+/**********************************************************************/
+
+#ifndef TEENSYDUINO
+
+UBitxRigState _rigState;
+UBitxRigState& rigState = _rigState;
+
+#endif
+
+/***********************************************************************
+ * EOF
+ **********************************************************************/

TeensyDSP/RigState.h

@@ -0,0 +1,372 @@
+/*!
+ *  @file     RigState.h
+ */
+
+#ifndef __RigState_h__
+#define __RigState_h__
+
+#include <Arduino.h>
+
+#define UBITX_VFOB_FLAG   0x00000001
+#define UBITX_SPLIT_FLAG  0x00000002
+#define UBITX_RIT_FLAG    0x00000004
+#define UBITX_XIT_FLAG    0x00000008
+#define UBITX_CW_FLAG     0x00000010
+#define UBITX_USB_FLAG    0x00000020
+#define UBITX_TX_FLAG     0x00000040
+
+#ifdef TEENSYDUINO
+#define DISABLEINTS(CMD) do { noInterrupts(); CMD; interrupts(); } while (0)
+#else
+#define DISABLEINTS(CMD) do { CMD; } while (0)
+#endif
+
+enum RigStateWord {
+  DIRTY_WORD = 0,
+  VFOA_WORD,
+  VFOB_WORD,
+  OFFSETS_WORD,
+  FLAGS_WORD,
+  NUM_WORDS
+};
+
+inline RigStateWord& operator++(RigStateWord& orig) {
+  orig = static_cast<RigStateWord>(orig + 1);
+  // NOTE: Will overflow...
+  return orig;
+}
+
+inline RigStateWord operator++(RigStateWord& orig, int) {
+  RigStateWord rVal = orig;
+  ++orig;
+  return rVal;
+}
+
+struct UBitxRigState {
+  volatile uint32_t data[NUM_WORDS] = {0};
+
+  void begin();
+
+  void send_RIGINF();
+  void receive_RIGINF(int numBytes = sizeof(data));
+
+  /*!
+   *  @brief  Set the dirty bit for the specified word.
+   *  
+   *  @param  w
+   *          The word to mark as dirty.
+   */
+  inline void setDirty(RigStateWord w) {
+    data[DIRTY_WORD] |= w < NUM_WORDS ? 1 << w : 0;
+  }
+
+  /*!
+   *  @brief  Set the dirty bits for all words.
+   */
+  inline void setDirty() { DISABLEINTS( data[DIRTY_WORD] = 0xFFFFFFFF ); }
+
+  /*!
+   *  @brief  Clear the dirty bit for the specified word.
+   *  
+   *  @param  w
+   *          The word to mark as clean.
+   */
+  inline void setClean(RigStateWord w) {
+    data[DIRTY_WORD] &= ~(w < NUM_WORDS ? 1 << w : 0);
+  }
+
+  /*!
+   *  @brief  Clear the dirty bits for all words.
+   */
+  inline void setClean() { DISABLEINTS( data[DIRTY_WORD] = 0 ); }
+
+  /*!
+   *  @brief  Check whether the specified word is clean.
+   *  
+   *  @param  w
+   *          The word to check for clean status.
+   *          
+   *  @return True if the word is clean.
+   */
+  inline bool isClean(RigStateWord w) {
+    bool clean;
+    DISABLEINTS( clean = ((1 << w) & data[DIRTY_WORD]) > 0 ? false : true );
+    return clean;
+  }
+
+  /*!
+   *  @brief  Check whether the data is clean (as a whole).
+   *  
+   *  @return True if the data is clean (no dirty fields).
+   */
+  inline bool isClean() {
+    bool clean;
+    DISABLEINTS( clean = data[DIRTY_WORD] == 0 );
+    return clean;
+  }
+  
+  /*!
+   *  @brief  Check whether the specified word is dirty.
+   *  
+   *  @param  w
+   *          The word to check for dirty status.
+   *          
+   *  @return True if the word is dirty.
+   */
+  inline bool isDirty(RigStateWord w) {
+    bool dirty;
+    DISABLEINTS( dirty = ((1 << w) & data[DIRTY_WORD]) > 0 ? true : false );
+    return dirty;
+  }
+  
+  /*!
+   *  @brief  Check whether the data is dirty (as a whole).
+   *  
+   *  @return True if the data is dirty (at least one dirty field).
+   */
+  inline bool isDirty() { 
+    bool dirty;
+    DISABLEINTS( dirty = data[DIRTY_WORD] != 0 );
+    return dirty; 
+  }
+
+  /*!
+   *  @brief  Set the VFO A frequency.
+   *  
+   *  @param  freq
+   *          The new frequency in Hz.
+   */
+  inline void setFreqA(uint32_t freq, bool mark = true) { 
+    DISABLEINTS( data[VFOA_WORD] = freq;
+                 if (mark) setDirty(VFOA_WORD) );
+  }
+  
+  inline uint32_t getFreqA() const { 
+    uint32_t result;
+    DISABLEINTS( result = data[VFOA_WORD] );
+    return result;
+  }
+
+  /*!
+   *  @brief  Set the VFO B frequency.
+   *  
+   *  @param  freq
+   *          The new frequency in Hz.
+   */
+  inline void setFreqB(uint32_t freq, bool mark = true) { 
+    DISABLEINTS( data[VFOB_WORD] = freq );
+  }
+  
+  inline uint32_t getFreqB() const { 
+    uint32_t result; 
+    DISABLEINTS( result = data[VFOB_WORD] );
+    return result; 
+  }
+
+  inline void setRIT(int16_t offset, bool mark = true) { 
+    DISABLEINTS( data[OFFSETS_WORD] = (int32_t(offset) << 16) | (0x0000FFFF & data[OFFSETS_WORD]);
+                 if (mark) setDirty(OFFSETS_WORD) );
+  }
+  
+  inline int16_t getRIT() const { 
+    int16_t result;
+    DISABLEINTS( result = data[OFFSETS_WORD] >> 16 );
+    return result; 
+  }
+
+  inline void setXIT(int16_t offset, bool mark = true) { 
+    DISABLEINTS( data[OFFSETS_WORD] = (0xFFFF0000 & data[OFFSETS_WORD]) | offset;
+                 if (mark) setDirty(OFFSETS_WORD) );
+  }
+  
+  inline int16_t getXIT() const { 
+    int16_t result;
+    DISABLEINTS( result = 0x0000FFFF & data[OFFSETS_WORD] );
+    return result; 
+  }
+
+  inline void setVFOA(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] &= ~UBITX_VFOB_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+
+  inline void setVFOB(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] |= UBITX_VFOB_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+  
+  inline bool isVFOA() const { 
+    bool result;
+    DISABLEINTS( result = data[FLAGS_WORD] & UBITX_VFOB_FLAG ? false : true );
+    return result; 
+  }
+  
+  inline bool isVFOB() const { 
+    bool result;
+    DISABLEINTS( result = data[FLAGS_WORD] & UBITX_VFOB_FLAG ? true : false );
+    return result; 
+  }
+
+  inline void setSplitOn(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] |= UBITX_SPLIT_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+
+  inline void setSplitOff(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] &= ~UBITX_SPLIT_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+  
+  inline bool isSplit() const { 
+    bool result;
+    DISABLEINTS( result = data[FLAGS_WORD] & UBITX_SPLIT_FLAG ? true : false );
+    return result; 
+  }
+
+  inline void setRITOn(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] |= UBITX_RIT_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  } 
+  
+  inline void setRITOff(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] &= ~UBITX_RIT_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  } 
+  
+  inline bool isRIT() const { 
+    bool result;
+    DISABLEINTS( result = data[FLAGS_WORD] & UBITX_RIT_FLAG ? true : false );
+    return result;
+  }
+  
+  inline void setXITOn(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] |= UBITX_XIT_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  } 
+  
+  inline void setXITOff(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] &= ~UBITX_XIT_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  } 
+  
+  inline bool isXIT() const { 
+    bool result;
+    DISABLEINTS( result = data[FLAGS_WORD] & UBITX_XIT_FLAG ? true : false );
+    return result;
+  }
+  
+  inline void setUSB(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] |= UBITX_USB_FLAG; 
+                 data[FLAGS_WORD] &= ~UBITX_CW_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+  
+  inline void setLSB(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] &= ~UBITX_USB_FLAG; 
+                 data[FLAGS_WORD] &= ~UBITX_CW_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+  
+  inline void setCW(bool mark = true)  { 
+    DISABLEINTS( data[FLAGS_WORD] |= UBITX_USB_FLAG; 
+                 data[FLAGS_WORD] |= UBITX_CW_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+  
+  inline void setCWR(bool mark = true) { 
+    DISABLEINTS( data[FLAGS_WORD] &= ~UBITX_USB_FLAG; 
+                 data[FLAGS_WORD] |= UBITX_CW_FLAG; 
+                 if (mark) setDirty(FLAGS_WORD) );
+  }
+  
+  inline bool isModeUSB() const { 
+    bool result;
+    DISABLEINTS( result = ((data[FLAGS_WORD] & UBITX_USB_FLAG) > 0) && ((data[FLAGS_WORD] & UBITX_CW_FLAG) == 0) );
+    return result;
+  }
+  
+  inline bool isModeLSB() const { 
+    bool result;
+    DISABLEINTS( result = ((data[FLAGS_WORD] & UBITX_USB_FLAG) == 0) && ((data[FLAGS_WORD] & UBITX_CW_FLAG) == 0) );
+    return result; 
+  }
+
+  inline bool isModeCWAny() const {
+    bool result;
+    DISABLEINTS( result = (data[FLAGS_WORD] & UBITX_CW_FLAG) > 0 );
+    return result;
+  }
+  
+  inline bool isModeCW() const { 
+    bool result;
+    DISABLEINTS( result = ((data[FLAGS_WORD] & UBITX_USB_FLAG) > 0) && ((data[FLAGS_WORD] & UBITX_CW_FLAG) > 0) );
+    return result; 
+  }
+  
+  inline bool isModeCWR() const { 
+    bool result;
+    DISABLEINTS( result = ((data[FLAGS_WORD] & UBITX_USB_FLAG) == 0) && ((data[FLAGS_WORD] & UBITX_CW_FLAG) > 0) );
+    return result; 
+  }
+
+#ifdef DEBUG
+  void serialHexState(const char* label);
+  void serialPrettyState(const char* label);
+#endif
+
+#ifndef TEENSYDUINO
+  // These methods are only defined in the Raduino (Arduino) case of the
+  // RigState, not in the TeensyDSP (Teensy) case.
+  void writeDirty();  // write fields FROM RigState TO Raduino
+  void readDirty();   // read variables FROM Raduino TO RigState
+#endif
+};
+
+#ifndef TEENSYDUINO
+
+extern UBitxRigState& rigState;
+
+#endif
+
+/*
+NOTE:  This is all currently OBE, leaving it here for reference/future cleanup.
+
+Protocol discussion:
+- I2C master: Raduino
+- I2C slave:  TeensyDSP
+
+Raduino state:
+  - Baseline uBITX variables
+  - I2C buffer
+    - On I2C transmit:  make updates based on current variables
+    - On I2C receive:
+      - Update based on received I2C responses
+      - Update associated variables
+    
+TeensyDSP state:
+  - CAT buffer
+    - Used to receive command from CAT (when commands arrive via Serial)
+    - Used to transmit state to Raduino (when requested via Wire1)
+  - Raduino buffer
+    - Used to receive state from Raduino (when received via Wire1)
+    - Used to transmit responses to CAT (over Serial)
+  - Questions
+    - How can these be synchronized?
+      - At the tail end of an I2C request handler.  Before sending the response to the Raduino via I2C:
+        - Copy updated CAT buffer items to the Raduino buffer.
+        - Copy updated Raduino buffer items to the CAT buffer.
+        - In the case of conflicts, CAT wins.
+        - Transmit the CAT buffer state to the Raduino.
+- TeensyDSP updates 'outgoing' state based on CAT inputs.
+  - Make change to data.
+  - Mark data as dirty, if different than incoming state.
+- When requested, Teensy DSP sends 'outgoing' state to Raduino.
+  - Send dirty data over I2C.
+  - Mark data as clean.  
+ */
+
+#endif
+
+/***********************************************************************
+ * EOF
+ **********************************************************************/

TeensyDSP/Sensors.cpp

@@ -0,0 +1,5 @@
+#include "Sensors.h"
+
+UBitxSensors Sensors;
+
+ADC adc;

TeensyDSP/Sensors.h

@@ -0,0 +1,363 @@
+#ifndef __Sensor_h__
+#define __Sensor_h__
+
+#include <ADC.h>
+#include "Debug.h"
+#include "HamFuncs.h"
+
+/**********************************************************************/
+
+#ifndef UBITX_SENSORS_S_METER_PIN
+#define UBITX_SENSORS_S_METER_PIN 28
+#endif
+
+#ifndef UBITX_SENSORS_FWD_PWR_PIN
+#define UBITX_SENSORS_FWD_PWR_PIN 26
+#endif
+
+#ifndef UBITX_SENSORS_REV_PWR_PIN
+#define UBITX_SENSORS_REV_PWR_PIN 20
+#endif
+
+#ifndef UBITX_SENSORS_SUPPLY_PIN
+#define UBITX_SENSORS_SUPPLY_PIN 21
+#endif
+
+#ifndef UBITX_SENSORS_SPARE1_PIN
+#define UBITX_SENSORS_SPARE1_PIN 27
+#endif
+
+#ifndef UBITX_SENSORS_SPARE2_PIN
+#define UBITX_SENSORS_SPARE2_PIN 31
+#endif
+
+#ifndef UBITX_SENSORS_AVG_SAMPLES
+#define UBITX_SENSORS_AVG_SAMPLES 16
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_R1
+#define UBITX_SENSORS_S_METER_R1 0.0
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_R2
+#define UBITX_SENSORS_S_METER_R2 1.0
+#endif
+
+#ifndef UBITX_SENSORS_FWD_PWR_R1
+#define UBITX_SENSORS_FWD_PWR_R1 22000.0
+#endif
+
+#ifndef UBITX_SENSORS_FWD_PWR_R2
+#define UBITX_SENSORS_FWD_PWR_R2 33000.0
+#endif
+
+#ifndef UBITX_SENSORS_REV_PWR_R1
+#define UBITX_SENSORS_REV_PWR_R1 22000.0
+#endif
+
+#ifndef UBITX_SENSORS_REV_PWR_R2
+#define UBITX_SENSORS_REV_PWR_R2 33000.0
+#endif
+
+#ifndef UBITX_SENSORS_SUPPLY_R1
+#define UBITX_SENSORS_SUPPLY_R1 56000.0
+#endif
+
+#ifndef UBITX_SENSORS_SUPPLY_R2
+#define UBITX_SENSORS_SUPPLY_R2 10000.0
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL0
+#define UBITX_SENSORS_S_METER_LVL0 2
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL1
+#define UBITX_SENSORS_S_METER_LVL1 4
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL2
+#define UBITX_SENSORS_S_METER_LVL2 8
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL3
+#define UBITX_SENSORS_S_METER_LVL3 16
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL4
+#define UBITX_SENSORS_S_METER_LVL4 32
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL5
+#define UBITX_SENSORS_S_METER_LVL5 64
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL6
+#define UBITX_SENSORS_S_METER_LVL6 128
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL7
+#define UBITX_SENSORS_S_METER_LVL7 256
+#endif
+
+#ifndef UBITX_SENSORS_S_METER_LVL8
+#define UBITX_SENSORS_S_METER_LVL8 512
+#endif
+
+/**********************************************************************/
+
+const int   uBitxSensorsSMeterPin  = UBITX_SENSORS_S_METER_PIN;
+const int   uBitxSensorsFwdPwrPin  = UBITX_SENSORS_FWD_PWR_PIN;
+const int   uBitxSensorsRevPwrPin  = UBITX_SENSORS_REV_PWR_PIN;
+const int   uBitxSensorsSupplyPin  = UBITX_SENSORS_SUPPLY_PIN;
+const int   uBitxSensorsSpare1Pin  = UBITX_SENSORS_SPARE1_PIN;
+const int   uBitxSensorsSpare2Pin  = UBITX_SENSORS_SPARE2_PIN;
+const int   uBitxSensorsAvgSamples = UBITX_SENSORS_AVG_SAMPLES;
+const float uBitxSensorsSMeterR1   = UBITX_SENSORS_S_METER_R1;
+const float uBitxSensorsSMeterR2   = UBITX_SENSORS_S_METER_R2;
+const float uBitxSensorsFwdPwrR1   = UBITX_SENSORS_FWD_PWR_R1;
+const float uBitxSensorsFwdPwrR2   = UBITX_SENSORS_FWD_PWR_R2;
+const float uBitxSensorsRevPwrR1   = UBITX_SENSORS_REV_PWR_R1;
+const float uBitxSensorsRevPwrR2   = UBITX_SENSORS_REV_PWR_R2;
+const float uBitxSensorsSupplyR1   = UBITX_SENSORS_SUPPLY_R1;
+const float uBitxSensorsSupplyR2   = UBITX_SENSORS_SUPPLY_R2;
+
+const int uBitxSensorsSMeterValues[] = {
+  UBITX_SENSORS_S_METER_LVL0,
+  UBITX_SENSORS_S_METER_LVL1,
+  UBITX_SENSORS_S_METER_LVL2,
+  UBITX_SENSORS_S_METER_LVL3,
+  UBITX_SENSORS_S_METER_LVL4,
+  UBITX_SENSORS_S_METER_LVL5,
+  UBITX_SENSORS_S_METER_LVL6,
+  UBITX_SENSORS_S_METER_LVL7,
+  UBITX_SENSORS_S_METER_LVL8
+};
+
+const int uBitxSensorsSMeterLevels = sizeof(uBitxSensorsSMeterValues) / 
+                                     sizeof(uBitxSensorsSMeterValues[0]);
+
+extern ADC adc;
+
+/**********************************************************************/
+
+/*!
+ *  @brief  Class that maintains a "trailing average" of the last X
+ *          samples provided.  It is a template that can be instantiated
+ *          with both the (numeric) data type that is being stored and
+ *          averaged, as well as the number of samples to maintain the
+ *          trailing average across.
+ */
+template <typename T, int N>
+class TrailingAverage {
+  public:
+  /*!
+   *  @brief  Create a new TrailingAverage object.  Data type averaged,
+   *          and number of elements to average, are determined when the
+   *          template is instantiated.
+   */
+  TrailingAverage(): 
+  average(T(0)),
+  current(0),
+  divisor(T(N))
+  {
+    for (int i = 0; i < N; i++) {
+      data[i] = T(0);
+    }
+  }
+
+  /*!
+   *  @brief  Add a new element to the average.  The current last (Nth)
+   *          element is removed, and the new element is added.
+   *  @param  val
+   *          The new element/value to incorporate into the average.
+   */
+  inline void add(T val) {
+    //int last = (current - 1) % N;
+    //average -= data[last];
+    //current = (current + 1) % N;
+    //data[current] = val / divisor;
+    //average += data[current];
+    average -= data[current];
+    data[current] = val / divisor;
+    average += data[current];
+    current = (current + 1) % N;    
+  }
+
+  /*!
+   *  @brief  Read the current value of the average.
+   *  @return The current average.
+   */
+  inline T read() {
+    return average;
+  }
+
+  private:
+  T data[N];
+  T average;
+  int current;
+  T divisor;
+};
+
+/**********************************************************************/
+
+/*!
+ *  @brief  Class that handles the various sensors in the uBitx: 
+ *          S-Meter, forward/reverse power and SWR, and supply voltage.
+ */
+class UBitxSensors {
+  public:
+  /*!
+   *  @brief  Create a new UBitxSensors object.  It uses the default
+   *          S-Meter, Forward Power, Reverse Power, and Supply Voltage
+   *          ADC pins.
+   */
+  UBitxSensors():
+  sMeterPin(uBitxSensorsSMeterPin),
+  fwdPwrPin(uBitxSensorsFwdPwrPin),
+  revPwrPin(uBitxSensorsRevPwrPin),
+  supplyPin(uBitxSensorsSupplyPin),
+  spare1Pin(uBitxSensorsSpare1Pin),
+  spare2Pin(uBitxSensorsSpare2Pin)
+  {
+    pinMode(sMeterPin, INPUT);  // analog
+    pinMode(fwdPwrPin, INPUT);  // analog
+    pinMode(revPwrPin, INPUT);  // analog
+    pinMode(supplyPin, INPUT);  // analog
+    pinMode(spare1Pin, INPUT);  // analog
+    pinMode(spare2Pin, INPUT);  // analog
+  }
+
+  /*!
+   *  @brief  Update the value of the S-Meter by reading the associated
+   *          ADC pin.
+   */
+  inline void updateSMeter() {
+    int value = adc.analogRead(sMeterPin);
+    sMeter.add(value);
+  }
+
+  /*!
+   *  @brief  Update the value of the Forward and Reverse Power 
+   *          measurements by reading the associated ADC pin.
+   */
+  void updatePower() {
+    ADC::Sync_result value = adc.analogSyncRead(revPwrPin, fwdPwrPin);
+
+    float fwdV = HF::adcIn(value.result_adc0);
+    float revV = HF::adcIn(value.result_adc1);
+
+    fwdV = HF::divIn(fwdV, uBitxSensorsFwdPwrR1, uBitxSensorsFwdPwrR2);
+    fwdV = HF::bridgeFwd(fwdV);
+
+    revV = HF::divIn(revV, uBitxSensorsRevPwrR1, uBitxSensorsRevPwrR2);
+    revV = HF::bridgeFwd(revV);
+
+    fwdPwr.add(HF::P(fwdV));
+    revPwr.add(HF::P(revV));
+    vswr.add(HF::VSWR(fwdV, revV));
+  }
+
+  /*!
+   *  @brief  Update the value of the Supply Voltage measurement by 
+   *          reading the associated ADC pin.
+   */
+  inline void updateSupply() {
+    float value = HF::adcIn(adc.analogRead(supplyPin));
+    value = HF::divIn(value, uBitxSensorsSupplyR1, uBitxSensorsSupplyR2);
+    supply.add(value);
+  }
+
+  /*!
+   *  @brief  Return the unscaled value of the S-Meter reading.
+   *  @return Unscaled S-Meter reading.
+   */
+  inline int sMeterUnscaled() {
+    return sMeter.read();
+  }
+
+  /*!
+   *  @brief  Return the scaled value of the S-Meter reading.  This
+   *          is the value that is used to directly control the S-Meter
+   *          display on the Nextion LCD.
+   *  @return Scaled S-Meter reading.
+   */
+  int sMeterScaled() {
+    int sig = sMeter.read() >> 2;
+    // small number of elements; just doing a linear search
+    for (int i = uBitxSensorsSMeterLevels; i > 0; i--) {
+      if (sig > uBitxSensorsSMeterValues[i - 1]) {
+        return i;
+      }
+    }
+    return 0;
+  }
+
+  /*!
+   *  @brief  Return the current Forward Power measurement.
+   *  @return Forward Power measurement.
+   */
+  inline float Pfwd() {
+    return fwdPwr.read();
+  }
+
+  /*!
+   *  @brief  Return the current Reverse Power measurement.
+   *  @return Reverse Power measurement.
+   */
+  inline float Prev() {
+    return revPwr.read();
+  }
+
+  /*!
+   *  @brief  Return the current Voltage Standing Wave Ration (VSWR).
+   *  @return Current VSWR calculation.
+   */
+  inline float VSWR() {
+    return vswr.read();
+  }
+
+  /*!
+   *  @brief  Return the current Voltage Standing Wave Ration (VSWR),
+   *          scaled for the Nextion display protocol.
+   *  @return Current VSWR calculation (scaled).
+   */
+  float scaledVSWR() {
+    int val = int(vswr.read());
+    if (val < 0) {
+      return 0;
+    } else if (val > uBitxSensorsSMeterLevels) {
+      return uBitxSensorsSMeterLevels;
+    } else {
+      return val;
+    }
+  }
+
+  /*!
+   *  @brief  Return the current Supply Voltage measurement.
+   *  @return Current Supply Voltage.
+   */
+  inline float supplyVoltage() {
+    return supply.read();
+  }
+
+  private:  
+
+  // Pins
+  int sMeterPin;
+  int fwdPwrPin;
+  int revPwrPin;
+  int supplyPin;
+  int spare1Pin;
+  int spare2Pin;
+
+  // Buffers for averages
+  TrailingAverage<int, uBitxSensorsAvgSamples>   sMeter;
+  TrailingAverage<float, uBitxSensorsAvgSamples> fwdPwr;
+  TrailingAverage<float, uBitxSensorsAvgSamples> revPwr;
+  TrailingAverage<float, uBitxSensorsAvgSamples> vswr;
+  TrailingAverage<float, uBitxSensorsAvgSamples> supply;
+};
+
+extern UBitxSensors Sensors;
+
+#endif

TeensyDSP/TR.cpp

@@ -0,0 +1,57 @@
+//======================================================================
+// TR.cpp
+//======================================================================
+
+#include <Arduino.h>
+#include "TR.h"
+
+UBitxTR TR(DSP);
+
+void UBitxTR::update(bool cw, bool extKey) {
+  updateLinePTT();
+  
+  if (cw) {    
+    if ((keyEnable && keyDown) || extKey) {
+      setTX(); 
+    } else {
+      setRX();
+    }
+    return;
+  }
+  
+  updateMicPTT();
+  updateMicVOX();
+  updateDataVOX();
+  
+  if (isTX) {
+    // If we are currently transmitting, then ANY T/R release (key
+    // release) will result in exiting transmit... except for VOX
+    // and CAT which can only function as a release if it was enabled.
+    if (micPTTReleased() || linePTTReleased() || 
+        (micVOXEnabled() && micVOXDeactivated()) ||
+        (catEnabled() && catDeactivated()) ||
+        (dataVOXEnabled() && dataVOXDeactivated())) {
+      // first, stop transmitting; then, setup RX audio
+      DBGCMD( setRX()  );
+      DBGCMD( dsp.rx() );
+    }
+  } else {
+    if ((micPTTEnabled() && micPTTPressed()) || (micVOXEnabled() && micVOXActivated())) {
+      // first, setup TX audio; then, start transmitting (from Mic)
+      DBGCMD( dsp.tx(MIC_IN)  );
+      DBGCMD( setTX()         );
+    } else if ((linePTTEnabled() && linePTTPressed())) {
+      // first, setup TX audio; then, start transmitting (from Line In)
+      DBGCMD( dsp.tx(LINE_IN) );
+      DBGCMD( setTX()         );
+    } else if (catEnable && catActivated()) {
+      // first, setup TX audio; then, start transmitting (USB)
+      DBGCMD( dsp.tx(USB_IN)  );
+      DBGCMD( setTX()         );
+    }
+  }    
+}
+
+//======================================================================
+// EOF
+//======================================================================

TeensyDSP/TR.h

@@ -0,0 +1,178 @@
+//======================================================================
+// TR.h
+//======================================================================
+
+#ifndef __TR_h__
+#define __TR_h__
+
+#include <Bounce2.h>
+#include "Debug.h"
+#include "DSP.h"
+
+#define UBITX_TR_OUT_PIN 2
+#define UBITX_TR_PTT_PIN 3
+#define UBITX_TR_VOX_PIN 4
+#define UBITX_TR_KEY_PIN 5
+
+const int uBitxTROutPin = UBITX_TR_OUT_PIN;
+const int uBitxTRPttPin = UBITX_TR_PTT_PIN;
+const int uBitxTRVoxPin = UBITX_TR_VOX_PIN;
+const int uBitxTRKeyPin = UBITX_TR_KEY_PIN;
+
+class UBitxTR {
+  public:
+  UBitxTR(UBitxDSP& d, int out = uBitxTROutPin, int p = uBitxTRPttPin, int v = uBitxTRVoxPin, int k = uBitxTRKeyPin):
+  dsp(d), outPin(out), pttPin(p), voxPin(v), keyPin(k) {}
+
+  void begin() {
+    pinMode(outPin, OUTPUT);
+    pinMode(voxPin, INPUT_PULLUP);
+    pinMode(keyPin, INPUT_PULLUP);
+    ptt.attach(pttPin, INPUT_PULLUP);
+    ptt.interval(5);
+
+    // default configuration: PTT, key, and CAT enabled; VOX disabled
+    DBGCMD( enableMicPTT()  );
+    DBGCMD( disableMicVOX() );
+    DBGCMD( enableLinePTT()  );
+    DBGCMD( enableCAT()  );
+
+    DBGCMD( setRX() );
+  }
+
+  inline void enableMicPTT() { pttEnable = true; }
+  inline void enableLinePTT() { keyEnable = true; }
+  inline void enableMicVOX() { voxEnable = true; }
+  inline void enableDataVOX() { dvoxEnable = true; }
+  inline void enableCAT() { catEnable = true; }
+  
+  inline void disableMicPTT() { pttEnable = false; }
+  inline void disableLinePTT() { keyEnable = false; }
+  inline void disableMicVOX() { voxEnable = false; }
+  inline void disableDataVOX() { dvoxEnable = false; }
+  inline void disableCAT() { catEnable = false; }
+
+  inline bool micPTTEnabled() const { return pttEnable; }
+  inline bool linePTTEnabled() const { return keyEnable; }
+  inline bool micVOXEnabled() const { return voxEnable; }
+  inline bool dataVOXEnabled() const { return dvoxEnable; }
+  inline bool catEnabled() const { return catEnable; }
+  
+  inline bool micPTTPressed() { return ptt.fell(); }
+  inline bool micPTTReleased() { return ptt.rose(); }
+  inline bool linePTTPressed() { return (L_keyDown != keyDown) && L_keyDown; }
+  inline bool linePTTReleased() { return (L_keyDown != keyDown) && keyDown; }
+  inline bool micVOXActivated() { return (L_voxActive != voxActive) && L_voxActive; }
+  inline bool micVOXDeactivated() { return (L_voxActive != voxActive) && voxActive; }
+  inline bool dataVOXActivated() { return (L_dvoxActive != dvoxActive) && L_dvoxActive; }
+  inline bool dataVOXDeactivated() { return (L_dvoxActive != dvoxActive) && dvoxActive; }
+  inline bool catActivated() { return (L_catActive != catActive) && L_catActive; }
+  inline bool catDeactivated() { return (L_catActive != catActive) && catActive; }
+  
+  inline void catTX() {
+    L_catActive = catActive;
+    catActive = true;
+  }
+
+  inline void catRX() {
+    L_catActive = catActive;
+    catActive = false;
+  }
+
+//======================================================================
+
+  inline bool transmitting() { return isTX;  }
+  inline bool receiving() { return !isTX; }
+
+  /*!
+   *  @brief  Check if any of the PTT's have been pressed or released 
+   *          since the last update.  Only one thing is allowed to occur
+   *          based on an order of precedence.  The highest priority is
+   *          to stop transmitting.
+   *          
+   *  @param  cw
+   *          True if CW mode is currently active; false otherwise.  
+   *          Different/faster logic is used in CW mode.
+   *          
+   *  @param  extKey
+   *          True if an external keying signal (ie. CW keyer) is 
+   *          currently active (ie. key down).
+   */
+  void update(bool cw = false, bool extKey = false);
+  
+  void end() {
+  }
+  
+  private:
+
+  inline void setTX() {
+    digitalWrite(outPin, LOW);
+    isTX = true;
+  }
+
+  inline void setRX() {
+    isTX = false;
+    digitalWrite(outPin, HIGH);
+  }
+
+  inline void updateMicPTT() {
+    ptt.update();
+  }
+
+  inline void updateLinePTT() {
+    L_keyDown = keyDown;
+    keyDown = (digitalRead(keyPin) == LOW);
+  }
+
+  inline void updateMicVOX() {
+    L_voxActive = voxActive;
+    voxActive = (digitalRead(voxPin) == LOW);
+  }
+
+  inline void updateDataVOX() {
+    L_dvoxActive = dvoxActive;
+    if (dsp.getVoxLevel() > dvoxThreshold) {
+      dvoxActive = true;
+      dvoxElapsed = 0;
+    } else if (dvoxActive && (dvoxElapsed > dvoxDelay)) {
+      dvoxActive = false;
+    }
+  }
+
+  UBitxDSP& dsp;
+
+  Bounce ptt;
+  
+  int pttPin;
+  int voxPin;
+  int keyPin;
+  int outPin;
+  
+  bool isTX = false;
+
+  bool pttEnable = false;
+  bool voxEnable = false;
+  bool dvoxEnable = false;
+  bool keyEnable = false;
+  bool catEnable = false;
+
+  bool voxActive = false;
+  bool L_voxActive = false;
+  bool dvoxActive = false;
+  bool L_dvoxActive = false;
+  bool keyDown = false;
+  bool L_keyDown = false;
+  bool catActive = false;
+  bool L_catActive = false;
+
+  elapsedMillis dvoxElapsed = 0;
+  unsigned dvoxDelay = 250; // TODO: make dynamic
+};
+
+extern UBitxTR TR;
+
+#endif
+
+//======================================================================
+// EOF
+//======================================================================

TeensyDSP/TS590.cpp

@@ -0,0 +1,510 @@
+#include <Arduino.h>
+#include "TS590.h"
+#include "Debug.h"
+
+/**********************************************************************/
+
+/*!
+ *  @brief  Send a command to the PC via CAT.  Note that the command
+ *          should not include the trailing terminator (;).  That will
+ *          be automatically added.
+ *  @param  format
+ *          A printf-style format string.
+ *  @param  args
+ *          Zero or more arguments to include in the command.
+ */
+void ts590SendCommand(const char* format, ...) {
+  static char outBuf[ts590CommandMaxLength];
+  va_list args;
+  va_start(args, format);
+  vsprintf(outBuf, format, args);
+  va_end(args);
+  Serial.print(outBuf);
+  Serial.print(";");
+}
+
+/**********************************************************************/
+
+/*!
+ *  @brief  Create a new CAT command.  It should be initialized with
+ *          a 2-character command prefix.
+ *  @param  pre
+ *          A 2-character command prefix.  If more than 2 characters
+ *          are supplied, only the first two will be used.  If less
+ *          than two are supplied, then the command will be
+ *          initialized with a null prefix.
+ */
+TS590Command::TS590Command(const char* pre)
+: myPrefix(pre), prefixLength(strlen(pre))
+{}
+
+TS590Command::~TS590Command() {}
+
+/*!
+ *  @brief  Determine whether this is a Read command or not.  by
+ *          default, if it's a 2-letter command, it's a Read.
+ *  @return True if a Read command; false otherwise.
+ */
+bool TS590Command::isReadCommand(const char* cmd) const {
+  if (strlen(cmd) == prefixLength) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+/*!
+ *  @brief  Process the provided command.  If the command is a Set
+ *          command, it calls handleCommand().  If Auto Information
+ *          is eet (by the rig), sendResponse() is called at the end.
+ *          If the command is a Read command, it also calls 
+ *          sendResponse().  Finally, if necessary, it will return
+ *          any error codes to the PC.
+ *  @param  cmd
+ *          The current command string received from the PC via CAT.
+ *          It should be null-terminated, and should no longer have
+ *          the terminator (;).
+ */
+void TS590Command::process(const char* cmd) {
+  theError = NoError;
+
+  if (isReadCommand(cmd)) {
+    DBGCMD( sendResponse(cmd) );
+  } else {
+    DBGCMD( handleCommand(cmd) );
+    switch(theError) {
+      case NoError:
+      if (theRig->isAI()) {
+        DBGCMD( sendResponse(cmd) );
+      }
+      break;
+
+      case SyntaxError:
+      DBGCMD( ts590SyntaxError() );
+      break;
+
+      case CommError:
+      DBGCMD( ts590CommError() );
+      break;
+
+      case ProcessError:
+      DBGCMD( ts590ProcessError() );
+      break;
+    }
+  }  
+}
+
+/*!
+ *  @brief  Set the syntax error flag.  This is cleared at the 
+ *          beginning of each call to process().
+ */
+void TS590Command::setSyntaxError() {
+  theError = SyntaxError;
+}
+
+/*!
+ *  @brief  Set the comms error flag.  This is cleared at the 
+ *          beginning of each call to process().
+ */
+void TS590Command::setCommError() {
+  theError = CommError;
+}
+
+/*!
+ *  @brief  Set the process error flag.  This is cleared at the 
+ *          beginning of each call to process().
+ */
+void TS590Command::setProcessError() {
+  theError = ProcessError;
+}
+
+/*!
+ *  @brief  Set the rig that will be used to process commands.
+ *  @param  r
+ *          Pointer to the UBitxRig object.
+ */
+void TS590Command::setRig(UBitxRig* r) {
+  theRig = r;
+}
+
+/*!
+ *  @brief  Set the DSP that will be used to process commands.
+ *  @param  d
+ *          Pointer to the UBitxDSP object.
+ */
+void TS590Command::setDSP(UBitxDSP* d) {
+  theDSP = d;
+}
+
+UBitxRig* TS590Command::theRig = &Rig;
+UBitxDSP* TS590Command::theDSP = &DSP;
+TS590Error TS590Command::theError = NoError;
+
+/**********************************************************************/
+
+void TS590Command_Bool::handleCommand(const char* cmd) {
+  setter(cmd[length()] == '0' ? false : true);
+}
+
+void TS590Command_Bool::sendResponse(const char* cmd) {
+  ts590SendCommand("%s%s", prefix(), getter() ? "1" : "0");
+}
+/**********************************************************************/
+
+void TS590Command_UL::handleCommand(const char* cmd) {
+  unsigned val = static_cast<unsigned>(strtoul(&cmd[length()], NULL, 10));
+  if (val < myMin) {
+    val = myMin;
+  } else if (val > myMax) {
+    val = myMax;
+  }
+  val = (val * mySlope) + myIntercept;
+  setter(val);
+}
+
+void TS590Command_UL::sendResponse(const char* cmd) {
+  unsigned val = getter();
+  val = (val - myIntercept) / mySlope;
+  if (val < myMin) {
+    val = myMin; 
+  } else if (val > myMax) {
+    val = myMax;
+  }
+  ts590SendCommand("%s%0*u", prefix(), myWidth, getter());
+}
+
+/**********************************************************************/
+
+void TS590_FR::handleCommand(const char* cmd) {
+  if (strlen(cmd) == 3) {
+    switch (cmd[2]) {
+      case '0':
+      rig()->setVFOA();
+      rig()->setSplitOff();
+      break;
+      
+      case '1':
+      rig()->setVFOB();
+      rig()->setSplitOff();
+      break;
+      
+      case '2':
+      // TODO: Need to add something for channel mode.
+      break;
+      
+      default:
+      setSyntaxError();
+    }
+  } else {
+    setSyntaxError();
+  }
+}
+
+void TS590_FR::sendResponse(const char* cmd) {
+  if (rig()->isVFOA()) {
+    ts590SendCommand("FR0");
+  } else if (rig()->isVFOB()) {
+    ts590SendCommand("FR1");      
+  } else {
+    ts590SendCommand("FR2");
+  }
+}
+
+/**********************************************************************/
+
+void TS590_FT::handleCommand(const char* cmd) {
+  if (strlen(cmd) == 3) {
+    switch (cmd[2]) {
+      case '0':
+      if (rig()->isVFOA()) {
+        rig()->setSplitOff();  
+      } else if (rig()->isVFOB()) {
+        rig()->setSplitOn();
+      } else {
+        setSyntaxError();
+      }          
+      break;
+      
+      case '1':
+      if (rig()->isVFOA()) {
+        rig()->setSplitOn();
+      } else if (rig()->isVFOB()) {
+        rig()->setSplitOff();
+      } else {
+        setSyntaxError();
+      }
+      break;
+      
+      default:
+      setSyntaxError();
+    }
+  } else {
+    setSyntaxError();
+  }
+}
+
+void TS590_FT::sendResponse(const char* cmd) {
+  if (rig()->isVFOA()) {
+    ts590SendCommand(rig()->isSplit() ? "FT1" : "FT0");
+  } else if (rig()->isVFOB()) {
+    ts590SendCommand(rig()->isSplit() ? "FT0" : "FT1");
+  } else {
+    ts590SendCommand("FT2");
+  }
+}
+
+/**********************************************************************/
+
+void TS590_MD::handleCommand(const char* cmd) {
+  if (strlen(cmd) == 3) {
+    switch (cmd[2]) {
+      case '0': // None (setting failure)
+      case '4': // FM - not supported
+      case '5': // AM - not supported
+      case '6': // FSK - not supported
+      case '8': // None (setting failure)
+      case '9': // FSK-R - not supported
+      setProcessError();
+      break;
+
+      case '1': // LSB
+      rig()->setLSB();
+      break;
+
+      case '2': // USB
+      rig()->setUSB();
+      break;
+
+      case '3': // CW
+      rig()->setCW();
+      break;
+
+      case '7': // CW-R
+      rig()->setCWR();
+      break;
+
+      default:
+      setSyntaxError();
+    }
+  } else {
+    setSyntaxError();
+  }
+}
+
+void TS590_MD::sendResponse(const char* cmd) {
+  if (rig()->isModeCW()) {
+    ts590SendCommand("MD3");      
+  } else if (rig()->isModeCWR()) {
+    ts590SendCommand("MD7");
+  } else if (rig()->isModeUSB()) {
+    ts590SendCommand("MD2");
+  } else if (rig()->isModeLSB()) {
+    ts590SendCommand("MD1");
+  } else {
+    ts590SendCommand("MD0");
+  }
+}
+
+/**********************************************************************/
+
+int ssbHiCut[14] = {1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000, 3400, 4000, 5000};
+int ssbLoCut[12] = {0, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000};
+
+int ssbWidth[14] = {50, 80, 100, 150, 200, 250, 300, 400, 500, 600, 1000, 1500, 2000, 2500};
+int ssbCenter[14] = {1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1750, 1800, 1900, 2000, 2100, 2210};
+
+void TS590_SH::handleCommand(const char* cmd) {
+  if (strlen(cmd) == 4) {
+    index = strtoul(&cmd[2], NULL, 10);
+    if (index < sizeof(ssbHiCut) / sizeof(ssbHiCut[0])) {
+      dsp()->setRxFilterHi(ssbHiCut[index]);
+    } else {          
+      setSyntaxError();
+    }
+  } else {
+    setSyntaxError();
+  }
+}
+
+void TS590_SH::sendResponse(const char* cmd) {
+  ts590SendCommand("SH%02u", index);
+}
+
+void TS590_SL::handleCommand(const char* cmd) {
+  if (strlen(cmd) == 4) {
+    index = strtoul(&cmd[2], NULL, 10);
+    if (index < sizeof(ssbLoCut) / sizeof(ssbLoCut[0])) {
+      dsp()->setRxFilterLo(ssbLoCut[index]);
+    } else {          
+      setSyntaxError();
+    }
+  } else {
+    setSyntaxError();
+  }
+}
+
+void TS590_SL::sendResponse(const char* cmd) {
+  ts590SendCommand("SL%02u", index);
+}
+
+/**********************************************************************/
+
+void TS590_VX::handleCommand(const char* cmd) {
+  
+}
+
+void TS590_VX::sendResponse(const char* cmd) {
+  
+}
+
+/**********************************************************************/
+
+void nullSetFunc(unsigned x) { return; }
+unsigned getIDFunc() {
+#ifndef USE_TS590SG_CAT
+  return 021;
+#else
+  return 023;
+#endif
+}
+
+SetUL setAG = SetUL::create<UBitxDSP, &UBitxDSP::setLineOut255>(DSP);
+GetUL getAG = GetUL::create<UBitxDSP, &UBitxDSP::getLineOut255>(DSP);
+SetUL setAI = [](unsigned v) -> void { v == 0 ? Rig.aiOff() : Rig.aiOn(); };
+GetUL getAI = []() -> unsigned { return Rig.isAI() ? 4 : 0; };
+//SetUL setSidetone = SetUL::create<UBitxDSP, ...>(...);
+//GetUL getSidetone = GetUL::create<UBitxDSP, ...>(...);
+SetUL setUSBin = SetUL::create<UBitxDSP, &UBitxDSP::setUSBIn9>(DSP);
+GetUL getUSBin = GetUL::create<UBitxDSP, &UBitxDSP::getUSBIn9>(DSP);
+SetUL setUSBout = SetUL::create<UBitxDSP, &UBitxDSP::setUSBOut9>(DSP);
+GetUL getUSBout = GetUL::create<UBitxDSP, &UBitxDSP::getUSBOut9>(DSP);
+SetUL setACC2in = SetUL::create<UBitxDSP, &UBitxDSP::setLineIn9>(DSP);
+GetUL getACC2in = GetUL::create<UBitxDSP, &UBitxDSP::getLineIn9>(DSP);
+SetUL setACC2out = SetUL::create<UBitxDSP, &UBitxDSP::setLineOut9>(DSP);
+GetUL getACC2out = GetUL::create<UBitxDSP, &UBitxDSP::getLineOut9>(DSP);
+SetUL setVoxDelay = SetUL::create<UBitxDSP, &UBitxDSP::setDataVoxDelay>(DSP);
+GetUL getVoxDelay = GetUL::create<UBitxDSP, &UBitxDSP::getDataVoxDelay>(DSP);
+SetUL setUSBvox = SetUL::create<UBitxDSP, &UBitxDSP::setUSBVOXThresh9>(DSP);
+GetUL getUSBvox = GetUL::create<UBitxDSP, &UBitxDSP::getUSBVOXThresh9>(DSP);
+SetUL setACC2vox = SetUL::create<UBitxDSP, &UBitxDSP::setLineVOXThresh9>(DSP);
+GetUL getACC2vox = GetUL::create<UBitxDSP, &UBitxDSP::getLineVOXThresh9>(DSP);
+SetUL setID = SetUL::create<nullSetFunc>();
+GetUL getID = GetUL::create<getIDFunc>();
+
+TS590Command_UL TS590_AG("AG0", 3, 0, 255, setAG, getAG);
+TS590Command_UL TS590_AI("AI", 1, 0, 4, setAI, getAI);
+// TS590_AS
+// TS590_BD
+// TS590_BU
+// TS590_CA
+// TS590_CD0
+// TS590_CD1
+// TS590_CD2
+// TS590_CH
+#ifndef USE_TS590SG_CAT
+//TS590Command_UL TS590_EX034("EX0340000", 2, 0, 14, 50, 300, setSideTone, getSideTone);
+TS590Command_UL TS590_EX064("EX0640000", 1, 0, 9, setUSBin, getUSBin);
+TS590Command_UL TS590_EX065("EX0650000", 1, 0, 9, setUSBout, getUSBout);
+TS590Command_UL TS590_EX066("EX0660000", 1, 0, 9, setACC2in, getACC2in);
+TS590Command_UL TS590_EX067("EX0670000", 1, 0, 9, setACC2out, getACC2out);
+TS590Command_UL TS590_EX070("EX0700000", 2, 0, 20, 5, 0, setVoxDelay, getVoxDelay);
+TS590Command_UL TS590_EX071("EX0710000", 1, 0, 9, setUSBvox, getUSBvox);
+TS590Command_UL TS590_EX072("EX0720000", 1, 0, 9, setACC2vox, getACC2vox);
+#else
+//TS590Command_UL TS590_EX040("EX0400000", 2, 0, 14, 50, 300, setSideTone, getSideTone);
+TS590Command_UL TS590_EX071("EX0710000", 1, 0, 9, setUSBin, getUSBin);
+TS590Command_UL TS590_EX072("EX0720000", 1, 0, 9, setUSBout, getUSBout);
+TS590Command_UL TS590_EX073("EX0730000", 1, 0, 9, setACC2in, getACC2in);
+TS590Command_UL TS590_EX074("EX0740000", 1, 0, 9, setACC2out, getACC2out);
+TS590Command_UL TS590_EX077("EX0770000", 2, 0, 20, 5, 0, setVoxDelay, getVoxDelay);
+TS590Command_UL TS590_EX078("EX0780000", 1, 0, 9, setUSBvox, getUSBvox);
+TS590Command_UL TS590_EX079("EX0790000", 1, 0, 9, setACC2vox, getACC2vox);
+#endif
+TS590Command_UL TS590_ID("ID", 3, 21, 23, setID, getID);
+
+TS590_FA cmdFA;
+TS590_FB cmdFB;
+TS590_FR cmdFR;
+TS590_FT cmdFT;
+TS590_MD cmdMD;
+TS590_SH cmdSH;
+TS590_SL cmdSL;
+
+TS590Command* catCommands[] = {
+  &cmdFA,
+  &cmdFB,
+  &cmdFR,
+  &cmdFT,
+  &cmdMD,
+  &cmdSH,
+  &cmdSL
+};
+int numCatCommands = sizeof(catCommands) / sizeof(catCommands[0]);
+
+/**********************************************************************/
+
+void UBitxTS590::begin() {
+  Serial.begin(9600); // USB is always 12 Mbit/sec
+  #ifdef DEBUG
+    delay(500);
+    Serial.print("DBG: Number of CAT commands: ");
+    Serial.println(numCommands);
+    for (int i = 0; i < numCommands; i++) {
+      Serial.print("     ");
+      Serial.println(commands[i]->prefix());
+    }
+  #endif
+}
+
+void UBitxTS590::update() {
+  char incomingChar;
+  
+  while (Serial.available()) {
+    if (bufLen < ts590CommandMaxLength) {
+      incomingChar = Serial.read();      
+      if (incomingChar == ';') {
+        buf[bufLen++] = '\0';
+        strupr(buf);
+        processCommand();
+      } else if (incomingChar == '\n' && bufLen == 0) {
+        ;
+      } else {
+        buf[bufLen++] = incomingChar;
+      }
+    } else {
+      // too long... we're going to bail on this.
+      ts590SyntaxError();
+      bufLen = 0;
+    }
+  }
+}
+
+typedef class TS590Command* PCmd;
+
+int compareCATCommands(const void* a, const void* b) {
+  TS590Command const *B = *(TS590Command const **)b;
+  int cmp = strncmp((char*)a, (char*)B->prefix(), B->length());
+  #ifdef DEBUG
+    Serial.print("Comparison: ");
+    Serial.print((char*)a);
+    Serial.print(" ? ");
+    Serial.print((char*)B->prefix());
+    Serial.print(" --> ");
+    Serial.println(cmp);
+  #endif
+  return cmp;
+}
+
+void UBitxTS590::processCommand() {
+  TS590Command** cmd = (TS590Command**)bsearch(buf, commands, numCommands, sizeof(TS590Command*), compareCATCommands);
+  if (cmd == NULL) {
+    ts590SyntaxError();
+  } else {
+    (*cmd)->process(buf);
+  }
+  bufLen = 0;
+}
+
+UBitxTS590 TS590(catCommands, numCatCommands);
+
+/**********************************************************************/

TeensyDSP/TS590.h

@@ -0,0 +1,362 @@
+#ifndef __TS590_h__
+#define __TS590_h__
+
+#include <Arduino.h>
+#include <Embedded_Template_Library.h>
+#include <etl/delegate.h>
+#include "DSP.h"
+#include "Rig.h"
+
+/**********************************************************************/
+
+#define TS590_COMMAND_MAX_LENGTH  50 // including terminator (which will get converted to null)
+
+const int ts590CommandMaxLength = TS590_COMMAND_MAX_LENGTH;
+
+void ts590SendCommand(const char*, ...);
+
+/*!
+ *  @brief  Send a syntax error response to the PC via CAT.
+ */
+inline void ts590SyntaxError() { ts590SendCommand("?"); }
+
+/*!
+ *  @brief  Send a communications error response to the PC via CAT.
+ */
+inline void ts590CommError() { ts590SendCommand("E"); }  
+
+/*!
+ *  @brief  Send a processing error response to the PC via CAT.
+ */
+inline void ts590ProcessError() { ts590SendCommand("O"); }
+
+enum TS590Error {
+  NoError,
+  SyntaxError,
+  CommError,
+  ProcessError
+};
+
+/**********************************************************************
+ **********************************************************************/
+/*
+class TS590BaseCommand {
+  public:
+  TS590BaseCommand(const char* prefix)
+  : myPrefix(prefix), prefixLength(strlen(prefix))
+  {}
+  virtual ~TS590BaseCommand() = 0;
+
+  inline const char* prefix() { return &myPrefix[0]; }
+  inline size_t length() { return prefixLength; }
+
+  virtual void handleCommand(const char* cmd) = 0;
+  virtual void sendResponse(const char* cmd) = 0;
+  virtual bool isReadCommand(const char* cmd) const;
+  
+  inline void process(const char* cmd) {
+    theError = NoError;
+  
+    if (isReadCommand(cmd)) {
+      DBGCMD( sendResponse(cmd) );
+    } else {
+      DBGCMD( handleCommand(cmd) );
+      switch(theError) {
+        case NoError:
+        if (theRig->isAI()) {
+          DBGCMD( sendResponse(cmd) );
+        }
+        break;
+  
+        case SyntaxError:
+        DBGCMD( ts590SyntaxError() );
+        break;
+  
+        case CommError:
+        DBGCMD( ts590CommError() );
+        break;
+  
+        case ProcessError:
+        DBGCMD( ts590ProcessError() );
+        break;
+      }
+    }  
+  }
+
+  private:
+  const char* myPrefix;
+  size_t prefixLength;
+};
+*/
+typedef etl::delegate<bool(const char*)> ValidateFunc;
+typedef etl::delegate<bool(const char*)> IsReadFunc;
+typedef etl::delegate<void(bool)> ToggleFunc;
+
+/*
+class TS590ToggleCommand : public TS590BaseCommand {
+  TS590ToggleCommand(const char* prefix, ToggleFunc& setter, ToggleFunc& getter)
+  : TS590BaseCommand(prefix) 
+  {}
+
+  private:
+  ToggleFunc& mySetter;
+  ToggleFunc& myGetter;
+};
+*/
+/**********************************************************************/
+
+/*!
+ *  @brief  A TS590S/SG "CAT" command.  This is the base class for all
+ *          CAT commands.
+ */
+class TS590Command {
+  public:
+  TS590Command(const char* pre);
+  virtual ~TS590Command();
+
+  /*!
+   *  @brief  Return the 2-character prefix for the command.
+   *  @return The 2-character prefix for the command.
+   */
+  inline const char* prefix() const { return &myPrefix[0]; }
+
+  inline size_t length() const { return prefixLength; }
+
+  /*!
+   *  @brief  Return the rig that this command will be used to control.
+   */
+  inline UBitxRig* rig() const { return theRig; }
+
+  /*!
+   *  @brief  Return the DSP that this command will be used to control.
+   */
+  inline UBitxDSP* dsp() const { return theDSP; }
+
+  /*!
+   *  @brief  Handle the provided Set command.  If the Set command
+   *          results in an error, then set the appropriate flag with
+   *          setSyntaxError(), setCommError(), or setProcessError().
+   *  @param  cmd
+   *          The current command string received from the PC via CAT.
+   *          It should be null-terminated, and should no longer have
+   *          the terminator (;).
+   */
+  virtual void handleCommand(const char* cmd) = 0;
+
+  /*!
+   *  @brief  Send a response back to the PC.  This assumes a
+   *          successful command (no errors).
+   */
+  virtual void sendResponse(const char* cmd) = 0;
+
+  virtual bool isReadCommand(const char* cmd) const;
+  
+  void process(const char* cmd);
+
+  static void setSyntaxError();
+  static void setCommError();
+  static void setProcessError();
+  static void setRig(UBitxRig* r);
+  static void setDSP(UBitxDSP* d);
+
+  private:
+  const char* myPrefix;
+  size_t prefixLength;
+  static TS590Error theError;
+  static UBitxRig* theRig;
+  static UBitxDSP* theDSP;
+};
+
+/**********************************************************************/
+
+typedef etl::delegate<void(bool)> SetBool;
+typedef etl::delegate<bool(void)> GetBool;
+
+class TS590Command_Bool : public TS590Command {
+  public:
+  TS590Command_Bool(const char* prefix, SetBool set, GetBool get)
+  : TS590Command(prefix), setter(set), getter(get) {}
+
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+
+  private:
+  SetBool setter;
+  GetBool getter;
+};
+
+/**********************************************************************/
+
+typedef etl::delegate<void(unsigned)> SetUL;
+typedef etl::delegate<unsigned(void)> GetUL;
+
+class TS590Command_UL : public TS590Command {
+  public:
+  TS590Command_UL(const char* prefix, size_t width, unsigned min, unsigned max, SetUL set, GetUL get)
+  : TS590Command(prefix), myWidth(width), myMin(min), myMax(max), mySlope(1), myIntercept(0), setter(set), getter(get) {}
+
+  TS590Command_UL(const char* prefix, size_t width, unsigned min, unsigned max, unsigned slope, unsigned intercept, SetUL set, GetUL get)
+  : TS590Command(prefix), myWidth(width), myMin(min), myMax(max), mySlope(slope), myIntercept(intercept), setter(set), getter(get) {}
+
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+
+  private:
+  size_t myWidth;
+  unsigned myMin;
+  unsigned myMax;
+  unsigned mySlope;
+  unsigned myIntercept;
+  SetUL setter;
+  GetUL getter;
+};
+
+/**********************************************************************/
+/*
+typedef etl::delegate<void(bool)> SetULArray;
+typedef etl::delegate<bool(void)> GetULArray;
+
+class TS590Command_ULArray : public TS590Command {
+  public:
+  TS590Command_ULArray(const char* prefix, SetUL set, GetUL get)
+  : TS590Command(prefix), setter(set), getter(get) {}
+
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+
+  private:
+  SetUL setter;
+  GetUL getter;
+};
+*/
+/**********************************************************************/
+
+/*!
+ *  @brief  CAT command for setting or reading the VFO A/B frequency.
+ */
+template<bool VFOA>
+class TS590_FAB : public TS590Command {
+  public:
+  TS590_FAB(): TS590Command(VFOA ? "FA" : "FB") {}
+
+  virtual void handleCommand(const char* cmd) {
+    if (strlen(cmd) == 13) {
+      unsigned long freq = strtoul(&cmd[2], NULL, 10);
+      if (VFOA) {
+        rig()->setFreqA(freq);
+      } else {
+        rig()->setFreqB(freq);
+      }
+    } else {
+      setSyntaxError();
+    }
+  }
+
+  virtual void sendResponse(const char* cmd) {
+    ts590SendCommand(VFOA ? "FA%011u" : "FB%011u", VFOA ? rig()->getFreqA() : rig()->getFreqB());
+  }
+};
+
+typedef TS590_FAB<true> TS590_FA;
+typedef TS590_FAB<false> TS590_FB;
+
+/**********************************************************************/
+
+/*!
+ *  @brief  CAT command for setting the receiver VFO.  This will always
+ *          disable split mode, if it was previously enabled.
+ */
+class TS590_FR : public TS590Command {
+  public:
+  TS590_FR(): TS590Command("FR") {}
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+};
+
+/**********************************************************************/
+
+/*!
+ *  @brief  CAT command for setting the transmitter VFO.  If it is
+ *          different than the receiver VFO, then split mode will be
+ *          automatically enabled.
+ */
+class TS590_FT : public TS590Command {
+  public:
+  TS590_FT(): TS590Command("FT") {}
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+};
+
+/**********************************************************************/
+
+/*!
+ *  @brief  CAT command for setting the mode.
+ */
+class TS590_MD : public TS590Command {
+  public:
+  TS590_MD(): TS590Command("MD") {}
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+};
+
+/**********************************************************************/
+
+/*!
+ *  @brief  CAT command for setting the receiver high-cut frequency.
+ */
+class TS590_SH : public TS590Command {
+  public:
+  TS590_SH(): TS590Command("SH") {}
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+  private:
+  unsigned index;
+};
+
+/*!
+ *  @brief  CAT command for setting the receiver low-cut frequency.
+ */
+class TS590_SL : public TS590Command {
+  public:
+  TS590_SL(): TS590Command("SL") {}
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+  private:
+  unsigned index;
+};
+
+/*!
+ *  CAT command for enabling or disabling the mic VOX.
+ */
+class TS590_VX : public TS590Command {
+  public:
+  TS590_VX(): TS590Command("VX") {}
+  virtual void handleCommand(const char* cmd);
+  virtual void sendResponse(const char* cmd);
+  private:
+  unsigned index;
+};
+
+/**********************************************************************/
+
+class UBitxTS590 {
+  public:
+  UBitxTS590(TS590Command** cmds, int len): commands(cmds), numCommands(len) {}
+  
+  void begin();
+  void update();
+
+  private:
+  void processCommand();
+  
+  char buf[ts590CommandMaxLength] = {0};
+  int bufLen = 0;
+  TS590Command** commands;
+  int numCommands;
+};
+
+extern UBitxTS590 TS590;
+
+#endif
+
+/**********************************************************************/

TeensyDSP/TeensyDSP.h

@@ -0,0 +1,75 @@
+/*
+Configuration file for Nextion LCD and Control MCU
+The parameter can be set according to the CPU used. 
+
+KD8CEC, Ian Lee
+-----------------------------------------------------------------------
+
+**********************************************************************/
+
+#include <Arduino.h>
+#include "Debug.h"
+#include "DSP.h"
+#include "Keyer.h"
+#include "Nextion.h"
+#include "Rig.h"
+#include "RigState.h"
+#include "Sensors.h"
+#include "TR.h"
+#include "TS590.h"
+
+//================================================================
+//COMMUNICATION SECTION
+//================================================================
+
+//================================================================
+// FFT and Decode Morse
+//================================================================
+
+#define FFTSIZE 64
+#define SAMPLE_FREQUENCY 6000
+#define SAMPLESIZE (FFTSIZE * 2)
+#define DECODE_MORSE_SAMPLESIZE 48
+
+extern uint8_t cwDecodeHz;
+extern int magnitudelimit_low;
+
+//================================================================
+// EEPROM Section
+//================================================================
+
+#define MAX_FORWARD_BUFF_LENGTH 128
+#define EEPROM_DSPTYPE      100
+#define EEPROM_SMETER_UART  111
+#define EEPROM_SMETER_TIME  112
+
+#define EEPROM_CW_FREQ      120
+//#define EEPROM_CW_MAG_LIMIT 121
+#define EEPROM_CW_MAG_LOW   122
+#define EEPROM_CW_NBTIME    126
+#define EEPROM_RTTYDECODEHZ 130
+
+//================================================================
+// DEFINE for I2C Command
+//================================================================
+
+//S-Meter Address
+#define I2CMETER_ADDR     0x58  //changed from 0x6A
+//VALUE TYPE============================================
+//Signal
+#define I2CMETER_CALCS    0x59 //Calculated Signal Meter
+#define I2CMETER_UNCALCS  0x58 //Uncalculated Signal Meter
+
+//Power
+#define I2CMETER_CALCP    0x57 //Calculated Power Meter
+#define I2CMETER_UNCALCP  0x56 //UnCalculated Power Meter
+
+//SWR
+#define I2CMETER_CALCR    0x55 //Calculated SWR Meter
+#define I2CMETER_UNCALCR  0x54 //Uncalculated SWR Meter
+
+// Raduino<=>TeensyDSP data exchange
+#define I2CMETER_RIGINF   0x50
+
+// Raduino requests any CAT updates from TeensyDSP
+//#define I2CMETER_REQCAT   0x51

TeensyDSP/TeensyDSP.ino

@@ -0,0 +1,779 @@
+/*
+  FFT, CW Decode for uBITX
+  KD8CEC, Ian Lee
+
+  Version : 0.8
+  -----------------------------------------------------------------------
+  License : See fftfunctions.cpp for FFT and CW Decode.
+**********************************************************************/
+
+#include <ADC.h>
+#include <i2c_t3.h>   // using i2c_t3 library for multiple I2C busses
+#include <EEPROM.h>
+#include "TeensyDSP.h"
+
+//const uint8_t responseHeader[11]={'p', 'm', '.', 's', 'p', '.', 't', 'x', 't', '=', '"'}; //for Spectrum from DSP
+//const uint8_t responseFooter[4]={'"', 0xFF, 0xFF, 0xFF};
+//const char hexCodes[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', };
+
+#ifdef DEBUG
+int i2cCmdCounter[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+int i2cRespCounter[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+#endif
+
+unsigned long SAMPLE_INTERVAL = 0;
+
+int i2cCommand = 0;
+//void calculateCoeff(uint8_t freqIndex);
+uint8_t cwDecodeHz = 9;
+int magnitudelimit_low = 30;
+
+char forwardBuff[MAX_FORWARD_BUFF_LENGTH + 1];
+static int nowBuffIndex = 0;
+static char etxCount = 0;
+static char nowSendingProtocol = 0;
+
+uint8_t SMeterToUartSend       = 0; //0 : Send, 1: Idle
+uint8_t SMeterToUartIdleCount  = 0;
+#define SMeterToUartInterval  4
+
+char DSPType = 1; //0 : Not Use, 1 : FFT, 2 : Morse Decoder, 3 : RTTY Decoder
+char FFTToUartIdleCount = 0;
+#define FFTToUartInterval 2
+
+elapsedMillis sinceForward = 0;
+uint8_t responseCommand = 0;  //
+bool isTX = false;
+
+/**********************************************************************/
+
+void responseConfig()
+{
+  if (responseCommand == 2)
+  {
+    unsigned long returnValue = 0;
+    if (DSPType == 0)
+    {
+      returnValue = 94; //None
+    }
+    else if (DSPType == 1)
+    {
+      returnValue = 95; //Spectrum (FFT) mode
+    }
+    else if (DSPType == 2)
+    {
+      returnValue = 100 + cwDecodeHz;
+    }
+
+    returnValue = returnValue << 8;
+    returnValue = returnValue |  (SMeterToUartSend & 0xFF);
+    returnValue = returnValue << 8;
+    uint8_t tmpValue = 0;
+    if (magnitudelimit_low > 255)
+      tmpValue = 255;
+    else if (magnitudelimit_low < 1)
+      tmpValue = 0;
+    else
+      tmpValue = magnitudelimit_low;
+    returnValue = returnValue |  (tmpValue & 0xFF);
+
+    sendCommandUL('v', returnValue);     //Return data
+    sendCommandUL('g', 0x6A);     //Return data
+  }
+  responseCommand = 0;
+}
+
+//Result : if found .val=, 1 else 0
+/*!
+    @brief Parse commands...
+*/
+
+char commandParser(int lastIndex)
+{
+  //Analysing Forward data
+  //59 58 68 4A   1C 5F 6A E5     FF FF 73
+  //Find Loopback protocol
+  // 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19    20 21 22
+  //70 6D 2E 76 76 2E 76 61 6C 3D 33 38 34 38 39 35 33 36 32 38    FF FF FF
+  //pm.vv.val=3848953628\xFF\xFF\xFF
+  //1234567890XXX
+  //
+  int startIndex = 0;
+
+  //Loop back command has 13 ~ 23
+  if (lastIndex < 13)
+  {
+    return 0;
+  }
+
+  //Protocol MAX Length : 22
+  if (lastIndex >= 22)
+  {
+    startIndex = lastIndex - 22;
+  }
+  else
+  {
+    startIndex = 0;
+  }
+
+  for (int i = lastIndex - 3; i >= startIndex + 7; i--)
+  {
+    //Find =
+    if (forwardBuff[i - 3] == 'v' && forwardBuff[i - 2] == 'a' && forwardBuff[i - 1] == 'l' && forwardBuff[i] == '=') //0x3D
+    {
+      uint8_t command1 = forwardBuff[i - 6]; //v
+      uint8_t command2 = forwardBuff[i - 5]; //v
+      //     i-4    //.
+      forwardBuff[lastIndex - 2] = 0;
+      long commandVal = atol(&forwardBuff[i + 1]);
+      uint8_t *readBuff = (uint8_t *)&commandVal;
+
+      //Loop Back
+      if (command1 == 'v' && command2 == 'v')
+      {
+        int calcChecksum = readBuff[0] + readBuff[1] + readBuff[2];
+        calcChecksum = calcChecksum % 256;
+
+        //Correct Checksum and Receiver is DSP Moudle protocol v1.0
+        if (calcChecksum == readBuff[3] && readBuff[2] == 0x6A)
+        {
+          //Serial1.print("Correct Checksum Command : ");
+          //Serial1.println(readBuff[1]);
+          uint8_t cmd1 = readBuff[1];
+          if (cmd1 == 94)
+          {
+            DSPType = 0;
+            EEPROM.put(EEPROM_DSPTYPE, DSPType);
+          }
+          else if (cmd1 == 95)
+          {
+            //Serial1.println("Spectrum Mode");
+            DSPType = 1;
+            EEPROM.put(EEPROM_DSPTYPE, DSPType);
+          }
+          else if (cmd1 >= 100 && cmd1 <= 145)
+          {
+            cwDecodeHz = cmd1 - 100;
+            //calculateCoeff(cwDecodeHz);
+            DSPType = 2;
+            EEPROM.put(EEPROM_DSPTYPE, DSPType);
+            EEPROM.put(EEPROM_CW_FREQ, cwDecodeHz);
+          }
+          else if (cmd1 > 1 && cmd1 <= 5) //2~5 : Request Configuration
+          {
+            responseCommand = cmd1;
+          }
+          else if (cmd1 == 50 || cmd1 == 51) //Set Configuration
+          {
+            SMeterToUartSend = (cmd1 == 51);
+            EEPROM.put(EEPROM_SMETER_UART, SMeterToUartSend);
+          }
+          else if (cmd1 >= 146 && cmd1 <= 156 )
+          {
+            //Save Mode
+            magnitudelimit_low = (cmd1 - 146) * 10;
+            EEPROM.put(EEPROM_CW_MAG_LOW, magnitudelimit_low);
+          } //end of if
+        } //end of check Checksum
+      }   //end of check Protocol (vv)
+      else if (command1 == 'c' && command2 == 't')  //TX, RX
+      {
+        if (commandVal == 0)  //RX
+        {
+          isTX = false;
+          SMeterToUartIdleCount = 0;
+        }
+        else if (commandVal == 1) //TX
+        {
+          isTX = true;
+          SMeterToUartIdleCount = 0;
+        }
+      }
+
+      return 1;
+    }     //end of check Protocol (.val)
+  }       //end of for
+
+  //Not found Protocol (.val=
+  return 0;
+}
+
+
+
+//#define PROTOCOL_TIMEOUT = 100
+
+/*!
+    @brief Forwards serial data from the RX line to the TX line.
+*/
+
+void forwardData(void)
+{
+  char recvChar;
+
+  if (Serial1.available() > 0)
+  {
+    Serial1.flush();
+
+    // Check RX buffer for available data.
+    while (Serial1.available() > 0)
+    {
+      recvChar = char(Serial1.read());
+
+      forwardBuff[nowBuffIndex] = recvChar;
+
+      if (recvChar == 0xFF)       // found ETX
+      {
+        etxCount++;               // Nextion protocol, ETX: 0xFF, 0xFF, 0xFF
+        if (etxCount >= 3)
+        {
+          // Finished Protocol
+          if (commandParser(nowBuffIndex) == 1)
+          {
+            nowSendingProtocol = 0; // finished 1 set command
+            etxCount = 0;
+            nowBuffIndex = 0;
+          }
+        }
+      }
+      else
+      {
+        nowSendingProtocol = 1; // sending data
+        etxCount = 0;
+      }
+
+      Serial1.write(recvChar);
+      sinceForward = 0;
+      nowBuffIndex++;
+
+      if (nowBuffIndex > MAX_FORWARD_BUFF_LENGTH - 2)
+      {
+        nowBuffIndex = 0;
+      }
+    }
+
+    Serial1.flush();
+  }
+  else
+  {
+    // check timeout
+  }
+}
+
+/**********************************************************************/
+
+void sendMeterData(uint8_t isSend)
+{
+  scaledSMeter = Sensors.sMeterScaled();
+
+  /*
+    1 : with noise (not use 0 ~ S3)
+    2 : -93 ~ -89
+    3 : -88 ~ -81
+    4 : -80 ~ -78
+    5 : -77 ~ -72
+    6 : -71 ~ -69
+  */
+
+  if (isSend == 1)
+  {
+    if (L_scaledSMeter != scaledSMeter)
+    {
+      L_scaledSMeter = scaledSMeter;
+      sendCommand1Num(CMD_SMETER, L_scaledSMeter);
+    }
+  }
+}
+
+/**********************************************************************/
+
+//void sendFFTData(void)
+//{
+//  int readValue = 0;
+//    for (int i = 0; i < 11; i++)
+//      Serial1.write(responseHeader[i]);
+//
+//    for(int i = 1; i < 64; i++)
+//    {
+//      readValue = (int)(FFTReal[i]);
+//      if (readValue < 0)
+//      {
+//        readValue = 0;
+//      }
+//      else if (readValue>255)
+//      {
+//        readValue=255;
+//      }
+//      Serial1.write(hexCodes[readValue >> 4]);
+//      Serial1.write(hexCodes[readValue & 0xf]);
+//    }
+//
+//  for (int i = 0; i < 4; i++)
+//    Serial1.write(responseFooter[i]);
+//}
+
+void setup()
+{
+  // Startup each of the subsystems, beginning with CAT.
+  DBGCMD( TS590.begin() );
+  DBGCMD( TR.begin()    );
+  DBGCMD( Rig.begin()   );
+  DBGCMD( DSP.begin()   );
+  
+  // load configuration
+  EEPROM.get(EEPROM_DSPTYPE, DSPType);
+  if (DSPType > 5)
+  {
+    DSPType = 1;
+  }
+
+  // signal meter
+  EEPROM.get(EEPROM_SMETER_UART, SMeterToUartSend);
+  if (SMeterToUartSend > 2)
+  {
+    SMeterToUartSend = 1;
+  }
+
+  // something with CW decoding...
+  EEPROM.get(EEPROM_CW_FREQ, cwDecodeHz);
+  if (cwDecodeHz > 40 || cwDecodeHz < 1)
+  {
+    cwDecodeHz = 9;
+  }
+
+  // EEPROM_CW_MAG_LOW
+  EEPROM.get(EEPROM_CW_MAG_LOW, magnitudelimit_low);
+  if (magnitudelimit_low > 1000 || magnitudelimit_low < 1)
+  {
+    magnitudelimit_low = 50;
+  }
+
+  // put your setup code here, to run once:
+
+  // slave Wire1 configuration for communication with the Raduino
+  Wire1.begin(I2CMETER_ADDR);
+  Wire1.onReceive(i2cReceiveEvent);
+  Wire1.onRequest(i2cRequestEvent);
+
+  // Serial1 configuration for communication with Raduino (RX) and Nextion (TX)
+  Serial1.begin(9600, SERIAL_8N1);
+  Serial1.flush();
+
+  SAMPLE_INTERVAL = round(1000000 * (1.0 / SAMPLE_FREQUENCY));
+  //calculateCoeff(cwDecodeHz);  //Set 750Hz //9 * 50 + 300 = 750Hz
+  //Serial1.println("Start...");
+}
+
+/*!
+    @brief  Receive a command via I2C.  The most recent command will be received, which will
+            indicate which data the DSP should be preparing to return.
+    @param  numBytes
+            Number of bytes received--not used in this procedure.
+*/
+void i2cReceiveEvent(size_t numBytes)
+{  
+  int readCommand = 0;
+  bool exitLoop = false;
+
+  // Does this really need to be a while loop?  Don't we know the number of bytes?
+  while (Wire1.available() > 0 && !exitLoop) {
+    readCommand = Wire1.read();
+    if (readCommand == I2CMETER_RIGINF) {
+      Rig.rad().receive_RIGINF(numBytes - 1);
+      exitLoop = true;
+    }
+  }
+
+//  while (Wire1.available() > 0) // for Last command
+//  {
+//    readCommand = Wire1.read();
+//    // KC4UPR:  Note that this looks to be only reading the last command, i.e.
+//    // if multiple commands have been queued up, only the last will get executed.
+//  }
+
+  if (0x50 <= readCommand && readCommand <= 0x59)
+  {
+    #ifdef DEBUG
+      i2cCmdCounter[readCommand - 0x50]++;
+    #endif
+    i2cCommand = readCommand;
+  }
+}
+
+/*!
+    @brief  Respond to a request from the I2C Master (Raduino).  Returns the appropriate data
+            based on whatever command was previously issued.
+*/
+void i2cRequestEvent(void)
+{
+  //int maxValue = 0;
+  //int minValue = 30000;
+  //int readValue = 0;
+  //unsigned long curr = 0;
+
+  switch (i2cCommand) {
+    case I2CMETER_CALCS:
+      // Returns an already-calculated S-meter value.
+      Wire1.write(scaledSMeter);
+      break;
+
+    case I2CMETER_UNCALCS:
+      // Returns a raw signal strength value.
+      Wire1.write(Sensors.sMeterUnscaled() >> 2); // divided by 4... do we want this?
+      break;
+
+    case I2CMETER_CALCP:
+      // Returns a raw forward power value.
+      Wire1.write(int(fwdPower * 100.0));
+      break;
+
+    case I2CMETER_CALCR:
+      // Returns a raw reverse power value.
+      Wire1.write(int(revPower * 100.0));
+      break;
+
+    case I2CMETER_RIGINF:
+    // Receive current rig state; transmit any CAT updates, if required.
+    Rig.cat().send_RIGINF();
+    //Wire1.write(catState.header); // temporary - just writing a single, null byte
+    // NEEDS TO GET UPDATED
+    break;
+
+/*
+    case I2CMETER_REQCAT:
+    // Provide latest CAT updates, if any.
+    //Wire1.write(catState.header); // temporary - just writing a single, null byte
+    // NEEDS TO GET UPDATED
+    if (Rig.updatedByCAT()) {
+      if (sentRigInfFlag) {
+        DBGPRINTLN("I2CMETER_REQCAT -- updated by CAT");
+        Wire1.write(Rig.stateAsBytes(), sizeof(UBitxRigState));
+        Rig.clearUpdate();
+      } else {
+        Wire1.write(1);
+        sentRigInfFlag = true;
+      }
+    } else {
+      DBGPRINTLN("I2CMETER_REQCAT -- NOT updated by CAT");
+      //Wire1.write(Rig.stateAsBytes(), sizeof(uint8_t));
+      Wire1.write(0);
+    }
+    break;
+*/
+    default:
+      break;
+  }
+
+#ifdef DEBUG
+  if (0x50 <= i2cCommand && i2cCommand <= 0x59)
+  {
+    i2cRespCounter[i2cCommand - 0x50]++;
+  }
+#endif
+}
+
+//extern void Decode_Morse(float magnitude);
+//extern double coeff;
+
+#define LAST_TIME_INTERVAL 159
+
+// for boot delay, a lot of data to transfer
+// Delay 2.5 Sec
+byte isBooted = 0;
+
+//======================================================================
+// ADC PROCESSES
+//======================================================================
+
+elapsedMillis sinceFrameMillis = 0;
+elapsedMillis sinceADCMillis = 0;
+
+#define FRAME_RATE        40
+#define FRAME_INTERVAL_MS (1000/FRAME_RATE)
+
+const int frameIntervalMillis = FRAME_INTERVAL_MS;
+
+#define ADC_SAMPLE_RATE   120
+#define ADC_INTERVAL_MS   (1000/ADC_SAMPLE_RATE)
+
+const int adcIntervalMillis = ADC_INTERVAL_MS;
+
+//======================================================================
+// MAIN LOOP
+//======================================================================
+
+#ifdef DEBUG
+int frameCounter = 0;
+#endif
+
+/**********************************************************************/
+
+void loop()
+{
+  //char isProcess = 0; // 0: init, 1: complete ADC sampling, 2: complete FFT
+  //isProcess = 0;
+
+  // One-shot delay to ensure everything is booted up (primarily, the 
+  // Nextion, and secondarily the Raduino.
+  if (isBooted < 100)
+  {
+    // delay 20msec
+    for (int i = 0; i < 20; i++)
+    {
+      forwardData();
+      delay(1);
+    }
+    isBooted++;
+    return;
+  }
+
+  // If CW mode, we need to update keying a lot...
+  if (Rig.isModeCWAny()) {
+    if (Rig.isModeCWAny()) Keyer.doPaddles();
+    TR.update(Rig.isModeCWAny(), Keyer.isDown());
+    //if (TR.transmitting()) return;
+  }
+
+  // Start out by forwarding any data sitting in the RX buffer.  We will
+  // do this as often as possible.
+  forwardData();
+
+  if (sinceFrameMillis > frameIntervalMillis) {
+    // Do stuff that we do once per frame--I/O.
+    // TODO: debug output (frame skipping / utilization).
+    sinceFrameMillis = 0;
+
+    // Update each of the subsystems, beginning with CAT control.
+    TS590.update();    
+    TR.update(Rig.isModeCWAny(), Keyer.isDown());
+    Rig.update();
+    DSP.update();
+
+    //if (Rig.isModeCWAny()) return;
+
+#ifdef DEBUG
+    // For debugging, output some debug info every 1.0" (40 frames @ 40 Hz).
+    frameCounter++;
+    if (frameCounter % 40 == 0) {
+      Serial.println("======================================================================");
+      Serial.print("DBG: Frame: ");
+      Serial.print(frameCounter);
+      if (isTX) {
+        Serial.print(", Loop State: TX");
+      } else {
+        Serial.print(", Loop State: RX");
+      }
+      if (TR.transmitting()) {
+        Serial.println(", TR State: TX");
+      } else {
+        Serial.println(", TR State: RX");
+      }
+      Serial.print("VFO A: ");
+      Serial.print(Rig.getFreqA());
+      Serial.print(", VFO B: ");
+      Serial.print(Rig.getFreqB());
+      Serial.print(", Data Size: ");
+      Serial.print(sizeof(UBitxRigState));
+      Serial.println();
+      Serial.println("----------------------------------------------------------------------");
+      Serial.print("DBG: S-Meter Raw: ");
+      Serial.print(Sensors.sMeterUnscaled());
+      Serial.print(", S-Meter Scaled: ");
+      Serial.println(scaledSMeter);
+      Serial.print("DBG: VSWR Calc: ");
+      Serial.print(calcVSWR, 2);      
+      Serial.print(", VSWR Scaled: ");
+      Serial.print(scaledVSWR);
+      Serial.print(", FWD PWR: ");
+      Serial.print(fwdPower, 2);
+      Serial.print(", REV PWR: ");
+      Serial.println(revPower, 2);
+      Serial.print("Audio Memory: ");
+      Serial.print(AudioMemoryUsage());
+      Serial.print(",");
+      Serial.println(AudioMemoryUsageMax());      
+      Serial.println("----------------------------------------------------------------------");
+      Serial.print("Enabled/Active: PTT: ");
+      Serial.print(TR.micPTTEnabled() ? "Y" : "N"); Serial.print("/"); Serial.print(TR.micPTTPressed() ? "Y" : "N");
+      Serial.print(", VOX: ");
+      Serial.print(TR.micVOXEnabled() ? "Y" : "N"); Serial.print("/"); Serial.print(TR.micVOXActivated() ? "Y" : "N");
+      Serial.print(", Key: ");
+      Serial.print(TR.linePTTEnabled() ? "Y" : "N"); Serial.print("/"); Serial.print(TR.linePTTPressed() ? "Y" : "N");
+      Serial.print(", CAT: ");
+      Serial.print(TR.catEnabled() ? "Y" : "N"); Serial.print("/"); Serial.print(TR.catActivated() ? "Y" : "N");      
+      Serial.println();
+      Serial.print("I2C Command/Response: ");
+      for (int i = 0x50; i <= 0x59; i++) {
+        Serial.print(i, HEX); Serial.print(": "); 
+        Serial.print(i2cCmdCounter[i - 0x50]); Serial.print("/");
+        Serial.print(i2cRespCounter[i - 0x50]); Serial.print(", ");
+      }
+      Serial.println();
+    }
+#endif
+
+    if (isTX) {
+      calcVSWR = Sensors.VSWR();
+      scaledVSWR = byte(Sensors.scaledVSWR());
+      fwdPower = Sensors.Pfwd();
+      revPower = Sensors.Prev();
+
+      // Send SWR meter information.
+      if (L_scaledVSWR != scaledVSWR) {
+        L_scaledVSWR = scaledVSWR;
+        sendCommand1Num(CMD_SMETER, scaledVSWR);
+      }
+
+      // Send forward power.
+      if (L_fwdPower != fwdPower) {
+        L_fwdPower = fwdPower;
+        sendCommandL('m', int(fwdPower * 100.0));  // watts x 100?
+        sendCommand1Num('m', 2);
+      }
+
+      // Send reverse power.
+      //if (L_revPower != revPower) {
+      //  L_revPower = revPower;
+      //  sendCommandL('m', int(revPower * 100.0));  // watts x 100?
+      //  sendCommand1Num('m', 2);
+      //}
+
+      // Does there need to be some kind of 250-500ms delay after this???
+      // Delay 250msec ~ 500msec for Nextion LCD Processing (using m protocol)
+      //for (int i = 0; i < 10; i++) {
+      //  forwardData();
+      //  if (!isTX) { //if TX -> RX break
+      //    break;
+      //  }
+      //  delay(25);
+      //} //end of delay time
+
+      // Send SWR.
+      if (L_calcVSWR != calcVSWR) {
+        L_calcVSWR = calcVSWR;
+        sendCommandL('m', int(calcVSWR * 100.0)); // SWR x 100?
+        sendCommand1Num('m', 3);
+      }
+
+    } else {  // RX
+
+      // Send Signal Meter to UART
+      if (SMeterToUartSend == 1 && nowSendingProtocol == 0)        //SMeter To Uart Send
+      {
+        //nowSendingProtocol -> not finished data forward, (not found 0xff, 0xff, 0xff yet)
+        sendMeterData(1);
+      } else {
+        sendMeterData(0); //only calculate Signal Level
+      }
+
+    }
+
+    // Forward any data that came in while we were updating stuff.
+    forwardData();
+  }
+
+  if (Rig.isModeCWAny()) return; // In CW, the ADC measurement messes with the timing.  So need to use interrupts on the Keyer, and/or continuous ADC.
+
+  if (sinceADCMillis > adcIntervalMillis) {
+    // Do stuff that we do once per ADC interval--ADC colllection.
+    // TODO: debug output (frame skipping / utilization).
+    sinceADCMillis = 0;
+
+    if (isTX) {
+      Sensors.updatePower();
+    } else {  // RX
+      Sensors.updateSMeter();
+      Sensors.updateSupply();
+    }
+
+    // Forward any data that came in while we were reading sensors.
+    //forwardData();
+  }
+
+  //if (Rig.isModeCWAny()) return;
+
+  // Check Response Command
+  if (responseCommand > 0 && sinceForward > LAST_TIME_INTERVAL)
+  {
+    responseConfig();
+  }
+
+  //  //===========================================
+  //  //TRANSCEIVER STATUS : RX
+  //  //===========================================
+  //  //===================================================================================
+  //  // DSP Routine
+  //  //===================================================================================
+  //  if (DSPType == 1 && sinceForward > LAST_TIME_INTERVAL) // spectrum: FFT => send To UART
+  //  {
+  //    FFTToUartIdleCount = 0;
+  //
+  //    if (isProcess == 1)
+  //    {
+  //      FFT(FFTReal, FFTImag, SAMPLESIZE, 7);
+  //      isProcess = 2;
+  //    }
+  //
+  //    forwardData();
+  //
+  //    if (isProcess == 2)
+  //    {
+  //      for (uint16_t k = 0; k < SAMPLESIZE; k++)
+  //      {
+  //        FFTReal[k] = sqrt(FFTReal[k] * FFTReal[k] + FFTImag[k] * FFTImag[k]);
+  //      }
+  //
+  //      isProcess = 3;
+  //    }
+  //
+  //    forwardData();
+  //
+  //    if (isProcess == 3)
+  //    {
+  //      if (nowSendingProtocol == 0)  //Idle Status
+  //      {
+  //        sendFFTData();
+  //      }
+  //    }
+  //  }
+  //  else if (DSPType == 2)          //Decode Morse
+  //  {
+  //    //Implement Goertzel_algorithm
+  //    //https://en.wikipedia.org/wiki/Goertzel_algorithm
+  //
+  //    /*
+  //    ω = 2 * π * Kterm / Nterms;
+  //    cr = cos(ω);
+  //    ci = sin(ω);
+  //    coeff = 2 * cr;
+  //
+  //    sprev = 0;
+  //    sprev2 = 0;
+  //    for each index n in range 0 to Nterms-1
+  //      s = x[n] + coeff * sprev - sprev2;
+  //      sprev2 = sprev;
+  //      sprev = s;
+  //    end
+  //
+  //    power = sprev2 * sprev2 + sprev * sprev - coeff * sprev * sprev2;
+  //     */
+  //    double Q1 = 0;
+  //    double Q2 = 0;
+  //
+  //    for (unsigned index = 0; index < DECODE_MORSE_SAMPLESIZE; index++)
+  //    {
+  //      float Q0;
+  //      Q0 = coeff * Q1 - Q2 + FFTReal[index];
+  //      Q2 = Q1;
+  //      Q1 = Q0;
+  //    }
+  //    double magnitudeSquared = (Q1*Q1)+(Q2*Q2)-Q1*Q2*coeff;  // we do only need the real part //
+  //    double magnitude = sqrt(magnitudeSquared);
+  //
+  //    Decode_Morse(magnitude);
+  //  } //end of if
+
+}
+
+//======================================================================
+// EOF
+//======================================================================

raduino-tmp/README.md

@@ -0,0 +1,240 @@
+<<<<<<< HEAD
+Stand-in README.md while I merge several repos into this project.
+=======
+#NOTICE
+----------------------------------------------------------------------------
+- Now Release Version 1.20 on my blog (http://www.hamskey.com)
+- You can download and compiled hex file and uBITX Manager application on release section (https://github.com/phdlee/ubitx/releases)
+- For more information, see my blog (http://www.hamskey.com)
+
+http://www.hamskey.com
+
+Ian KD8CEC
+kd8cec@gmail.com
+
+#uBITX
+uBITX firmware, written for the Raduino/Arduino control of uBITX transceivers
+This project is based on https://github.com/afarhan/ubitx and all copyright is inherited.
+The copyright information of the original is below.
+
+KD8CEC
+----------------------------------------------------------------------------
+Prepared or finished tasks for the next version
+  - Add TTS module
+  - Direct control for Student
+  
+----------------------------------------------------------------------------
+## REVISION RECORD
+1.20
+ - Support uBITX V5
+ - Change to SDR Frequency (Remove just RTL-SDR's error Frequency (2390Hz))
+1.12
+ - Support Custom LPF Control
+ - Other Minor Bugs
+1.1
+ - Support Nextion LCD, TJC LCD
+ - Read & Backup uBITX, ADC Monitoring, ATT, IF-Shift and more on Nextion LCD (TJC LCD)
+ - Factory Reset (Both Character LCD and Nextion LCD are applicable)
+ - Support Signal Meter using ADC (A7 Port)
+ - Supoort I2C Signal Meter
+ - Spectrum
+ - Band Scan
+ - Memory Control on Nextion LCD (TJC LCD)
+ - Speed Change CW-Option on Nextion LCD
+ - Fixed Band Change Bug (Both Character LCD and Nextion LCD are applicable)
+ - uBITX Manager removed the Encode and Decode buttons. The procedure has become a bit easier.
+ - I2C Device Scan on uBITX Manager ( Both Character LCD and Nextion LCD are applicable)
+ - Si5351 I2C Address can be changed
+ - Recovery using QR-Code Data from Server
+ - Nextion LCD and TJC LCD can display Spectrum and CW Decode (using Stand alone S-Meter)
+ - Other Minor Bugs
+ 
+1.09 (Beta)
+- include 1.094 beta, 1.095 beta, 1.097 beta
+
+1.08
+ - Receive performance is improved compared to the original firmware or version 1.061
+ - ATT function has been added to reduce RF gain (Shift 45Mhz IF)
+ - Added the ability to connect SDR. (Low cost RTL-SDR available)
+ - Added a protocol to ADC Monitoring in CAT communications
+ - Various LCD support, 16x02 Parallel LCD - It is the LCD equipped with uBITX, 16x02 I2C LCD, 20x04 Parallel LCD, 20x04 I2C LCD, 16x02 I2C Dual LCD
+ - Added Extended Switch Support
+ - Support S Meter
+ - Added S-Meter setting assistant to uBITX Manager
+ - Add recovery mode (such as Factory Reset)
+ - There have been many other improvements and fixes. More information is available on the blog. (http://www.hamskey.com)
+
+1.07 (Beta)
+ - include 1.071 beta, 1.073 beta, 1.075 beta
+ - Features implemented in the beta version have been applied to Version 1.08 above.
+
+1.061
+ - Added WSPR
+   You only need uBITX to use WSPR. No external devices are required.
+   Added Si5351 module for WSPR
+ - Update uBITX Manager to Version 1.0
+ - Reduce program size
+   for WSPR
+   for other Module
+ - Fixed IF Shift Bug
+   Disable IF Shift on TX
+   IF shift available in USB mode
+   Fixed cat routine in IF Shift setup
+- Bugs fixed
+   cw start delay option
+   Auto key Bug
+   (found bug : LZ1LDO)
+   Message selection when Auto Key is used in RIT mode
+   (found bug : gerald)
+- Improve CW Keying (start TX)
+
+1.05
+ - include 1.05W, 1.051, 1.051W
+ - for WSPR Beta Test Version
+
+1.04
+  - Optimized from Version1.03
+  - Reduce program size (97% -> 95%)
+  
+1.03
+  - Change eBFO Calibration Step (50 to 5)
+  - Change CW Frequency Display type
+  
+1.02
+  - Applied CW Start Delay to New CW Key logic (This is my mistake when applying the new CW Key Logic.Since uBITX operations are not significantly affected, this does not create a separate Release, It will be reflected in the next release.) - complete
+  - Modified CW Key Logic for Auto Key, (available AutoKey function by any cw keytype) - complete
+  - reduce cpu use usage (working)
+  - reduce (working)
+
+1.01
+  - Fixed Cat problem with (IAMBIC A or B Selected)
+1.0 
+  - rename 0.30 to 1.0
+  
+0.35
+  - vfo to channel bug fixed (not saved mode -> fixed, channel has frequency and mode)
+  - add Channel tag (ch.1 ~ 10) by uBITX Manager
+  - add VFO to Channel, Channel To VFO
+  
+0.34
+  - TX Status check in auto Keysend logic
+  - optimize codes
+  - change default tune step size, and fixed bug
+  - change IF shift step (1Hz -> 50Hz)
+  
+0.33
+  - Added CWL, CWU Mode, (dont complete test yet)
+  - fixed VFO changed bug.
+  - Added Additional BFO for CWL, CWL
+  - Added IF Shift
+  - Change confirmation key PTT -> function key (not critical menus)
+  - Change CW Key Select type, (toggle -> select by dial)
+  
+0.32
+  - Added function Scroll Frequencty on upper line
+  - Added Example code for Draw meter and remarked (you can see and use this code in source codes)
+  - Added Split function, just toggle VFOs when TX/RX
+
+0.31
+  - Fixed CW ADC Range error
+  - Display Message on Upper Line (anothor VFO Frequency, Tune Step, Selected Key Type)
+
+0.30
+ - implemented the function to monitor the value of all analog inputs. This allows you to monitor the status of the CW keys connected to your uBITX. 
+ - possible to set the ADC range for CW Keying. If no setting is made, it will have the same range as the original code. If you set the CW Keying ADC Values using uBITX Manager 0.3, you can reduce the key error.
+ - Added the function to select Straight Key, IAMBICA, IAMBICB key from the menu.
+ - default Band select is Ham Band mode, if you want common type, long press function key at band select menu, uBITX Manager can be used to modify frequencies to suit your country.
+
+0.29
+ - Remove the use of initialization values in BFO settings - using crruent value, if factory reset
+ - Select Tune Step, default 0, 20, 50, 100, 200, Use the uBITX Manager to set the steps value you want. You can select Step by pressing and holding the Function Key (1sec ~ 2sec).
+ - Modify Dial Lock Function, Press the Function key for more than 3 seconds to toggle dial lock.
+ - created a new frequency tune method. remove original source codes, Threshold has been applied to reduce malfunction. checked the continuity of the user operating to make natural tune possible.
+ - stabilize and remove many warning messages - by Pullrequest and merge
+ - Changed cw keying method. removed the original code and applied Ron's code and Improved compatibility with original hardware and CAT commnication. It can be used without modification of hardware.
+ 
+0.28
+ - Fixed CAT problem with hamlib on Linux
+ - restore Protocol autorecovery logic
+
+0.27 
+   (First alpha test version, This will be renamed to the major version 1.0)
+ - Dual VFO Dial Lock (vfoA Dial lock)
+ - Support Ham band on uBITX
+   default Hamband is regeion1 but customize by uBITX Manager Software
+ - Advanced ham band options (Tx control) for use in all countries. You can adjust it yourself.   
+ - Convenience of band movement
+
+0.26
+  - only Beta tester released & source code share
+  - find a bug on none initial eeprom uBITX - Fixed (Check -> initialized & compatible original source code)
+  - change the version number 0.26 -> 0.27
+  - Prevent overflow bugs
+  - bug with linux based Hamlib (raspberry pi), It was perfect for the 0.224 version, but there was a problem for the 0.25 version.  
+    On Windows, ham deluxe, wsjt-x, jt65-hf, and fldigi were successfully run. Problem with Raspberry pi.
+
+0.25
+  - Beta Version Released
+    http://www.hamskey.com/2018/01/release-beta-version-of-cat-support.html
+  - Added CAT Protocol for uBITX
+  - Modified the default usb carrier value used when the setting is wrong.
+  - Fixed a routine to repair when the CAT protocol was interrupted.
+
+0.24
+  - Program optimization
+    reduce usage ram rate (string with M() optins)
+  - Optimized CAT protocol for wsjt-x, fldigi
+
+0.23
+  - added delay_background() , replace almost delay() to delay_background for prevent timeout
+  - cat library compatible with FT-817 Command 
+    switch VFOA / VFOB, 
+    Read Write CW Speed
+    Read Write CW Delay Time
+    Read Write CW Pitch (with sidetone)
+    All of these can be controlled by Hamradio deluxe.
+
+  - modified cat libray function for protocol for CAT communication is not broken in CW or TX mode
+  - Ability to change CW Delay
+  - Added Dial Lock function
+  - Add functions CW Start dely (TX -> CW interval)
+  - Automatic storage of VFO frequency
+    It was implemented by storing it only once when the frequency stays 10 seconds or more after the change.
+    (protect eeprom life)
+
+  
+0.22
+  - fixed screen Update Problem
+  - Frequency Display Problem - Problems occur below 1Mhz
+  - added function Enhanced CAT communication
+  - replace ubitx_cat.ino to cat_libs.ino
+  - Save mode when switching to VFOA / VFOB
+
+
+0.21
+  - fixed the cw side tone configuration.
+  - Fix the error that the frequency is over.
+  - fixed frequency display (alignment, point) 
+
+
+0.20 
+  - original uBITX software (Ashhar Farhan)
+
+## Original README.md
+uBITX firmware, written for the Raduino/Arduino control of uBITX transceigers
+
+Copyright (C) 2017,  Ashhar Farhan
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+>>>>>>> raduino/master

teensydsp-tmp/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
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+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

teensydsp-tmp/README.md

@@ -0,0 +1,14 @@
+# dspmeterv1
+
+Please also refer to the site below.
+https://github.com/soligen2010/dspmeterv1
+
+-------------------------------------------
+
+Standalone Signal Analyzer (I2C Type Signal-Meter) for uBITX - Arduino Nano Version
+
+I do not claim any license for my code.
+You may use it in any way. I just hope this will be used for amateur radio.
+The other person's source code (CW Morse code) follows the original author's license.
+
+Ian KD8CEC