added ubitx_keyer.cpp from W0EB Raduino I2C
This commit is contained in:
parent
89af919e42
commit
909b40e165
334
ubitx_20/ubitx_keyer.cpp
Normal file
334
ubitx_20/ubitx_keyer.cpp
Normal file
@ -0,0 +1,334 @@
|
||||
/**
|
||||
* File name ubitx_keyer.cpp
|
||||
* CW Keyer
|
||||
*
|
||||
* The CW keyer handles either a straight key or an iambic / paddle key.
|
||||
* D12 for DOT Paddle and D11 for DASH Paddle and D* for PTT/Handkey
|
||||
*
|
||||
* Generating CW
|
||||
* The CW is cleanly generated by unbalancing the front-end mixer
|
||||
* and putting the local oscillator directly at the CW transmit frequency.
|
||||
* The sidetone, generated by the Arduino is injected into the volume control
|
||||
*/
|
||||
#include <Arduino.h>
|
||||
#include "ubitx.h"
|
||||
|
||||
extern void stopTx(void);
|
||||
extern void startTx(byte txMode);
|
||||
extern void updateDisplay(void);
|
||||
extern void printLine2(char *c);
|
||||
extern void printLine3(char *c);
|
||||
extern void printLine4(char *c);
|
||||
|
||||
extern unsigned long sideTone;
|
||||
extern int cwSpeed;
|
||||
extern long CW_TIMEOUT;
|
||||
extern volatile bool inTx;
|
||||
extern volatile int ubitx_mode;
|
||||
|
||||
extern volatile unsigned char keyerControl;
|
||||
extern volatile unsigned char keyerState;
|
||||
extern unsigned volatile char IAMBIC;
|
||||
extern unsigned volatile char PDLSWAP;
|
||||
|
||||
extern volatile unsigned long Ubitx_Voltage;
|
||||
extern volatile int Ubitx_Voltage_Timer;
|
||||
|
||||
|
||||
volatile bool keyDown = false; //in cw mode, denotes the carrier is being transmitted
|
||||
volatile uint8_t Last_Bits = 0xFF;;
|
||||
|
||||
|
||||
volatile bool Dot_in_Progress = false;
|
||||
volatile unsigned long Dot_Timer_Count = 0;
|
||||
volatile bool Dash_in_Progress = false;
|
||||
volatile unsigned long Dash_Timer_Count = 0;
|
||||
volatile bool Inter_Bit_in_Progress = false;
|
||||
volatile unsigned long Inter_Bit_Timer_Count = 0;
|
||||
volatile bool Turn_Off_Carrier_in_Progress = false;
|
||||
volatile unsigned long Turn_Off_Carrier_Timer_Count = 0;
|
||||
volatile bool Ubitx_Voltage_Act = false;
|
||||
volatile bool PTT_HANDKEY_ACTIVE = false;
|
||||
volatile long last_interrupt_time = 20;
|
||||
extern bool Cat_Lock;
|
||||
extern volatile bool TX_In_Progress;
|
||||
|
||||
/**
|
||||
* Starts transmitting the carrier with the sidetone
|
||||
* It assumes that we have called cwTxStart and not called cwTxStop
|
||||
* each time it is called, the cwTimeOut is pushed further into the future
|
||||
*/
|
||||
void cwKeydown(void){
|
||||
keyDown = 1; //tracks the CW_KEY
|
||||
tone(CW_TONE, (int)sideTone);
|
||||
digitalWrite(CW_KEY, 1);
|
||||
#ifdef XMIT_LED
|
||||
digitalWrite(ON_AIR, 0); // extinguish the LED on NANO's pin 13
|
||||
#endif
|
||||
|
||||
}
|
||||
/**
|
||||
* Stops the CW carrier transmission along with the sidetone
|
||||
* Pushes the cwTimeout further into the future
|
||||
*/
|
||||
void cwKeyUp(void){
|
||||
keyDown = 0; //tracks the CW_KEY
|
||||
noTone(CW_TONE);
|
||||
digitalWrite(CW_KEY, 0);
|
||||
#ifdef XMIT_LED
|
||||
digitalWrite(ON_AIR, 1); // extinguish the LED on NANO's pin 13
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
|
||||
void update_PaddleLatch() {
|
||||
// if (!digitalRead(DIGITAL_DOT) ) keyerControl |= DIT_L;
|
||||
// if (!digitalRead(DIGITAL_DASH) ) keyerControl |= DAH_L;
|
||||
if (digitalRead(DIGITAL_DOT) == LOW) {
|
||||
if (keyerControl & PDLSWAP) keyerControl |= DAH_L; else keyerControl |= DIT_L;
|
||||
}
|
||||
if (digitalRead(DIGITAL_DASH) == LOW) {
|
||||
if (keyerControl & PDLSWAP) keyerControl |= DIT_L; else keyerControl |= DAH_L;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////////////////////
|
||||
// interupt handlers
|
||||
|
||||
//// timers
|
||||
ISR(TIMER1_OVF_vect) {
|
||||
bool continue_loop = true;
|
||||
|
||||
|
||||
// timer for voltage display
|
||||
if ( Ubitx_Voltage_Timer <= 0 ){
|
||||
Ubitx_Voltage_Timer = Ubitx_Voltage_Timer_Count;
|
||||
Ubitx_Voltage_Act = true;
|
||||
}else Ubitx_Voltage_Timer = Ubitx_Voltage_Timer - 1;
|
||||
|
||||
// process if CW modes
|
||||
if( (ubitx_mode == MODE_CW)||(ubitx_mode == MODE_CWR)){
|
||||
|
||||
|
||||
// process DOT and DASH timing
|
||||
if( (Dot_in_Progress)&&(Dot_Timer_Count > 0) ){
|
||||
if( !inTx ){
|
||||
keyDown = 0;
|
||||
startTx(TX_CW);
|
||||
}
|
||||
if( keyDown == 0 ) cwKeydown();
|
||||
Dot_Timer_Count = Dot_Timer_Count - 1;
|
||||
if( Dot_Timer_Count <= 0 ){
|
||||
Dot_Timer_Count = 0;
|
||||
Dot_in_Progress = false;
|
||||
cwKeyUp();
|
||||
}
|
||||
}
|
||||
|
||||
// process Inter Bit Timing
|
||||
if( (Inter_Bit_in_Progress)&&(Inter_Bit_Timer_Count > 0) ){
|
||||
Inter_Bit_Timer_Count = Inter_Bit_Timer_Count - 1;
|
||||
if( Inter_Bit_Timer_Count <= 0 ){
|
||||
Inter_Bit_Timer_Count = 0;
|
||||
Inter_Bit_in_Progress = false;
|
||||
}
|
||||
}
|
||||
|
||||
// process turning off carrier
|
||||
if( (Turn_Off_Carrier_in_Progress)&&(Turn_Off_Carrier_Timer_Count > 0) ){
|
||||
Turn_Off_Carrier_Timer_Count = Turn_Off_Carrier_Timer_Count - 1;
|
||||
if( Turn_Off_Carrier_Timer_Count <= 0 ){
|
||||
Turn_Off_Carrier_in_Progress = false;
|
||||
Turn_Off_Carrier_Timer_Count = 0;
|
||||
stopTx();
|
||||
}
|
||||
}
|
||||
|
||||
// process hand key
|
||||
if( digitalRead(DIGITAL_KEY) == 0 ){
|
||||
// If interrupts come faster than 5ms, assume it's a bounce and ignore
|
||||
last_interrupt_time = last_interrupt_time - 1;
|
||||
if( last_interrupt_time <= 0) {
|
||||
last_interrupt_time = 0;
|
||||
if( !inTx ){
|
||||
keyDown = 0;
|
||||
startTx(TX_CW);
|
||||
}
|
||||
if( keyDown == 0 ) cwKeydown();
|
||||
PTT_HANDKEY_ACTIVE = true;
|
||||
Turn_Off_Carrier_Timer_Count = CW_TIMEOUT;
|
||||
}
|
||||
}else if( (keyDown == 1) && (PTT_HANDKEY_ACTIVE == true) ){
|
||||
cwKeyUp();
|
||||
Turn_Off_Carrier_Timer_Count = CW_TIMEOUT;
|
||||
Turn_Off_Carrier_in_Progress = true;
|
||||
last_interrupt_time = PTT_HNDKEY_DEBOUNCE_CT;
|
||||
PTT_HANDKEY_ACTIVE = false;
|
||||
}else last_interrupt_time = PTT_HNDKEY_DEBOUNCE_CT;
|
||||
|
||||
if( PTT_HANDKEY_ACTIVE == false ){
|
||||
while(continue_loop){
|
||||
switch (keyerState) {
|
||||
case IDLE:
|
||||
if (
|
||||
(!digitalRead(DIGITAL_DOT)) ||
|
||||
(!digitalRead(DIGITAL_DASH))||
|
||||
(keyerControl & 0x03)
|
||||
) {
|
||||
update_PaddleLatch();
|
||||
keyerState = CHK_DIT;
|
||||
Dot_in_Progress = false;
|
||||
Dot_Timer_Count = 0;
|
||||
Turn_Off_Carrier_Timer_Count = 0;
|
||||
Turn_Off_Carrier_in_Progress = false;
|
||||
}else{
|
||||
continue_loop = false;
|
||||
}
|
||||
break;
|
||||
|
||||
case CHK_DIT:
|
||||
if (keyerControl & DIT_L) {
|
||||
keyerControl |= DIT_PROC;
|
||||
keyerState = KEYED_PREP;
|
||||
Dot_Timer_Count = cwSpeed;
|
||||
}else{
|
||||
keyerState = CHK_DAH;
|
||||
}
|
||||
break;
|
||||
|
||||
case CHK_DAH:
|
||||
if (keyerControl & DAH_L) {
|
||||
keyerState = KEYED_PREP;
|
||||
Dot_Timer_Count = cwSpeed*3;
|
||||
}else{
|
||||
continue_loop = false;
|
||||
keyerState = IDLE;
|
||||
}
|
||||
break;
|
||||
|
||||
case KEYED_PREP:
|
||||
keyerControl &= ~(DIT_L + DAH_L); // clear both paddle latch bits
|
||||
keyerState = KEYED; // next state
|
||||
Turn_Off_Carrier_Timer_Count = 0;
|
||||
Turn_Off_Carrier_in_Progress = false;
|
||||
Dot_in_Progress = true;
|
||||
break;
|
||||
|
||||
case KEYED:
|
||||
if (Dot_in_Progress == false) { // are we at end of key down ?
|
||||
Inter_Bit_in_Progress = true;
|
||||
Inter_Bit_Timer_Count = cwSpeed;
|
||||
keyerState = INTER_ELEMENT; // next state
|
||||
}else if (keyerControl & IAMBIC) {
|
||||
update_PaddleLatch(); // early paddle latch in Iambic B mode
|
||||
continue_loop = false;
|
||||
}else continue_loop = false;
|
||||
break;
|
||||
|
||||
case INTER_ELEMENT:
|
||||
// Insert time between dits/dahs
|
||||
update_PaddleLatch(); // latch paddle state
|
||||
if (Inter_Bit_in_Progress == false) { // are we at end of inter-space ?
|
||||
Turn_Off_Carrier_Timer_Count = CW_TIMEOUT;
|
||||
Turn_Off_Carrier_in_Progress = true;
|
||||
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
|
||||
}
|
||||
}else continue_loop = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// process PTT
|
||||
if( (ubitx_mode == MODE_USB)|| (ubitx_mode == MODE_LSB)){
|
||||
if( digitalRead(PTT) == 0 ){
|
||||
// If interrupts come faster than 5ms, assume it's a bounce and ignore
|
||||
last_interrupt_time = last_interrupt_time - 1;
|
||||
if( last_interrupt_time <= 0) {
|
||||
last_interrupt_time = 0;
|
||||
if( !inTx ) startTx(TX_SSB);
|
||||
}
|
||||
}else if( (inTx)&&(Cat_Lock == false )&&(TX_In_Progress == false)){
|
||||
last_interrupt_time = PTT_HNDKEY_DEBOUNCE_CT;
|
||||
stopTx();
|
||||
}else last_interrupt_time = PTT_HNDKEY_DEBOUNCE_CT;
|
||||
}
|
||||
|
||||
}
|
||||
void Connect_Interrupts(void){
|
||||
keyerControl = 0;
|
||||
cli();
|
||||
TIMSK1 |= (1<<TOIE1);
|
||||
sei();
|
||||
}
|
||||
|
||||
|
||||
#define N_MORSE (sizeof(morsetab)/sizeof(morsetab[0]))
|
||||
// Morse table
|
||||
struct t_mtab { char c, pat; } ;
|
||||
struct t_mtab morsetab[] = {
|
||||
{'.', 106}, {',', 115}, {'?', 76}, {'/', 41}, {'A', 6}, {'B', 17}, {'C', 21}, {'D', 9},
|
||||
{'E', 2}, {'F', 20}, {'G', 11}, {'H', 16}, {'I', 4}, {'J', 30}, {'K', 13}, {'L', 18},
|
||||
{'M', 7}, {'N', 5}, {'O', 15}, {'P', 22}, {'Q', 27}, {'R', 10}, {'S', 8}, {'T', 3},
|
||||
{'U', 12}, {'V', 24}, {'W', 14}, {'X', 25}, {'Y', 29}, {'Z', 19}, {'1', 62}, {'2', 60},
|
||||
{'3', 56}, {'4', 48}, {'5', 32}, {'6', 33}, {'7', 35}, {'8', 39}, {'9', 47}, {'0', 63}
|
||||
};
|
||||
|
||||
///////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// CW generation routines for CQ message
|
||||
void key(int LENGTH){
|
||||
|
||||
if( !inTx ) startTx(TX_CW);
|
||||
cwKeydown();
|
||||
delay(LENGTH*2);
|
||||
cwKeyUp();
|
||||
delay(cwSpeed*2);
|
||||
|
||||
}
|
||||
|
||||
|
||||
void send(char c){
|
||||
int i ;
|
||||
|
||||
|
||||
if (c == ' ') {
|
||||
delay(7*cwSpeed) ;
|
||||
return ;
|
||||
}
|
||||
for (i=0; i<N_MORSE; i++){
|
||||
if (morsetab[i].c == c){
|
||||
unsigned char p = morsetab[i].pat ;
|
||||
while (p != 1) {
|
||||
if (p & 1) Dot_Timer_Count = cwSpeed*3;
|
||||
else Dot_Timer_Count = cwSpeed;
|
||||
key(Dot_Timer_Count);
|
||||
p = p / 2 ;
|
||||
}
|
||||
delay(cwSpeed*5) ;
|
||||
return ;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
void sendmsg(char *str){
|
||||
|
||||
while (*str) send(*str++);
|
||||
delay(650);
|
||||
stopTx();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user