Updated Raduino code with some old code from the ubitx-v5d repository, in order to suppress the key line (prevent inadvertant transmitting when I first start working this).

Raduino/Raduino.ino

@@ -316,6 +316,17 @@ 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)
@@ -678,6 +689,10 @@ 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;
@@ -1459,15 +1474,34 @@ 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();
+    else
+      cwKeyer();
     checkButton();    
   }
- else
-    controlAutoCW();
   
-  cwKeyer(); 
+//cwKeyer(); 
   
   //tune only when not tranmsitting 
   if (!inTx){

Raduino/ubitx.h

@@ -23,7 +23,7 @@
 // Compile Option
 //==============================================================================
 //Ubitx Board Version
-#define UBITX_BOARD_VERSION 2           //v1 ~ v4 : 4, v5: 5
+#define UBITX_BOARD_VERSION 5           //v1 ~ v4 : 4, v5: 5
 
 //Depending on the type of LCD mounted on the uBITX, uncomment one of the options below.
 //You must select only one.
@@ -48,8 +48,8 @@
 //#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 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 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

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
+   * KC4UPR - IOP update, 2020-05-03
-          keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
+   * 
-          keyerState = KEYED; // next state
+   * Modifying this for the uBITX IOP.  Big picture:
-          if (!inTx){
+   * 
-            //DelayTime Option
+   * No iambic keyer.  It's always "straight key" based on the IOP.
-            delay_background(delayBeforeCWStartTime * 2, 2);
-            
-            keyDown = 0;
-            cwTimeout = millis() + cwDelayTime * 10;  //+ CW_TIMEOUT;
-            startTx(TX_CW, 1);
-          }
    */
-          if (!inTx){
+//  lastPaddle = 0;
-            //DelayTime Option
+//  bool continue_loop = true;
-            delay_background(delayBeforeCWStartTime * 2, 2);
+//  unsigned tmpKeyControl = 0;
-            
+//  
-            keyDown = 0;
+//  if( Iambic_Key ) {
-            cwTimeout = millis() + cwDelayTime * 10;  //+ CW_TIMEOUT;
+//    while(continue_loop) {
-            startTx(TX_CW, 1);
+//      switch (keyerState) {
-          }
+//        case IDLE:
-          ktimer += millis(); // set ktimer to interval end time
+//          tmpKeyControl = update_PaddleLatch(0);
-          keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
+//          if ( tmpKeyControl == DAH_L || tmpKeyControl == DIT_L || 
-          keyerState = KEYED; // next state
+//            tmpKeyControl == (DAH_L | DIT_L) || (keyerControl & 0x03)) {
-          
+//             update_PaddleLatch(1);
-          cwKeydown();
+//             keyerState = CHK_DIT;
-          break;
+//          }else{
-    
+//            if (0 < cwTimeout && cwTimeout < millis()){
-        case KEYED:
+//              cwTimeout = 0;
-          if (millis() > ktimer) { // are we at end of key down ?
+//              stopTx();
-           cwKeyUp();
+//            }
-           ktimer = millis() + cwSpeed; // inter-element time
+//            continue_loop = false;
-            keyerState = INTER_ELEMENT; // next state
+//          }
-          }else if (keyerControl & IAMBICB) {
+//          break;
-            update_PaddleLatch(1); // early paddle latch in Iambic B mode
+//    
-          }
+//        case CHK_DIT:
-          break;
+//          if (keyerControl & DIT_L) {
-    
+//            keyerControl |= DIT_PROC;
-        case INTER_ELEMENT:
+//            ktimer = cwSpeed;
-          // Insert time between dits/dahs
+//            keyerState = KEYED_PREP;
-          update_PaddleLatch(1); // latch paddle state
+//          }else{
-          if (millis() > ktimer) { // are we at end of inter-space ?
+//            keyerState = CHK_DAH;
-            if (keyerControl & DIT_PROC) { // was it a dit or dah ?
+//          }
-              keyerControl &= ~(DIT_L + DIT_PROC); // clear two bits
+//          break;
-              keyerState = CHK_DAH; // dit done, check for dah
+//    
-            }else{
+//        case CHK_DAH:
-              keyerControl &= ~(DAH_L); // clear dah latch
+//          if (keyerControl & DAH_L) {
-              keyerState = IDLE; // go idle
+//            ktimer = cwSpeed*3;
-            }
+//            keyerState = KEYED_PREP;
-          }
+//          }else{
-          break;
+//            keyerState = IDLE;
-      }
+//          }
-  
+//          break;
-      Check_Cat(2);
+//    
-    } //end of while
+//        case KEYED_PREP:
-  }
+//          //modified KD8CEC
-  else{
+//          /*
+//          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
@@ -262,7 +298,7 @@ void cwKeyer(void){
 
       Check_Cat(2);
     } //end of while
-  }   //end of elese
+//  }   //end of elese
 }
 
 
@@ -365,5 +401,3 @@ void cwKeyer(){
   }
 }
 */
-
-