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IC746.cpp 100644
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/*************************************************************************
IC746 CAT Library, by KK4DAS, Dean Souleles
Inspired by: ft857d CAT Library, by Pavel Milanes, CO7WT, pavelmc@gmail.com
Emulates an ICOM 746 CAT functionality to work with all ham radio software that include CAT control
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/>.
***************************************************************************/
#include "Arduino.h"
#include "IC746.h"
//#define DEBUG_CAT
#ifdef DEBUG_CAT
//#define DEBUG_CAT_DETAIL
//#define DEBUG_CAT_SMETER
#include <SoftwareSerial.h>
SoftwareSerial catDebug(6, 7); // RX, TX
String dbg;
#endif
// User supplied calback function work variables, must be static
static FuncPtrBoolean catSplit;
static FuncPtrBoolean catSetPtt;
static FuncPtrVoidBoolean catGetPtt;
static FuncPtrVoidLong catGetFreq;
static FuncPtrLong catSetFreq;
static FuncPtrVoidByte catGetMode;
static FuncPtrByte catSetMode;
static FuncPtrVoidByte catGetSmeter;
static FuncPtrByte catSetVFO;
static FuncPtrVoid catAtoB;
static FuncPtrVoid catSwapVfo;
// Command indices
//
// Command structure after preamble and EOM have been discarded
// |56|E0|cmd|sub-cmd|data
// 56 - fixed transceiver address for IC746
// E0 - fixed cat xontroller address
// The sub-command field varies by command. For somme commands the sub-cmd field is not supplied and the data
// begins immediatedly follwing the command.
//
// The following are the array indedes within the command buffer for command elements that are sent with the command
// or are where we put data to return to the conroller
//
#define CAT_IX_XCVR_ADDR 0
#define CAT_IX_CTRL_ADDR 1
#define CAT_IX_CMD 2
#define CAT_IX_SUB_CMD 3
#define CAT_IX_FREQ 3 // Set Freq has no sub-command
#define CAT_IX_MODE 3 // Get mode has no sub-command
#define CAT_IX_PTT 4 // PTT RX/TX indicator
#define CAT_IX_IF_FILTER 4 // IF Filter value
#define CAT_IX_SMETER 4 // S Meter 0-255
#define CAT_IX_SQUELCH 4 // Squelch 0=close, 1= open
#define CAT_IX_ID 5
#define CAT_IX_DATA 4 // Data following sub-comand
/*
Contructor, simple constructor, it initiates the serial port in the
default mode for the radio: 9600 @ 8N2
*/
void IC746::begin() {
Serial.begin(9600, SERIAL_8N2);
Serial.flush();
#ifdef DEBUG_CAT
catDebug.begin(9600);
dbg = "CAT Debug Ready:";
catDebug.println(dbg.c_str());
#endif
}
// Alternative initializer with a custom baudrate and mode
void IC746::begin(long br, int mode) {
/*
Allowed Arduino modes for the serial:
SERIAL_5N1; SERIAL_6N1; SERIAL_7N1; SERIAL_8N1; SERIAL_5N2; SERIAL_6N2;
SERIAL_7N2; SERIAL_8N2; SERIAL_5E1; SERIAL_6E1; SERIAL_7E1; SERIAL_8E1;
SERIAL_5E2; SERIAL_6E2; SERIAL_7E2; SERIAL_8E2; SERIAL_5O1; SERIAL_6O1;
SERIAL_7O1; SERIAL_8O1; SERIAL_5O2; SERIAL_6O2; SERIAL_7O2; SERIAL_8O2
*/
Serial.begin(br, mode);
Serial.flush();
#ifdef DEBUG_CAT
catDebug.begin(9600);
dbg = "CAT Debug Ready";
catDebug.println(dbg.c_str());
#endif
}
/*
Linking user supplied callback functions
*/
// PTT
void IC746::addCATPtt(void (*userFunc)(boolean)) {
catSetPtt = userFunc;
}
// Split
void IC746::addCATsplit(void (*userFunc)(boolean)) {
catSplit = userFunc;
}
// VFO A=B - set both VFOs to be the same as the active VFO
void IC746::addCATAtoB(void (*userFunc)(void)) {
catAtoB = userFunc;
}
// Swap Active VFO
void IC746::addCATSwapVfo(void (*userFunc)(void)) {
catSwapVfo = userFunc;
}
// Get the freq of operation, the function must return the freq
void IC746::addCATGetFreq(long (*userFunc)(void)) {
catGetFreq = userFunc;
}
// Get the mode of operation, the function must return the mode
void IC746::addCATGetMode(byte (*userFunc)(void)) {
catGetMode = userFunc;
}
// GetPTT - function must return true for Tx and false for Rx
void IC746::addCATGetPtt(boolean (*userFunc)(void)) {
catGetPtt = userFunc;
}
// S meter (user function must return 0-15)
void IC746::addCATSMeter(byte (*userFunc)(void)) {
catGetSmeter = userFunc;
}
// Set Frequency - user function must accept a long as the freq in hz
void IC746::addCATFSet(void (*userFunc)(long)) {
catSetFreq = userFunc;
}
// Set Mode - user function must interpret MODE per the constants in IC746.h
void IC746::addCATMSet(void (*userFunc)(byte)) {
catSetMode = userFunc;
}
// SEt VFOA or B - user function must interpret VFO per the constants in IC746.h
void IC746::addCATVSet(void (*userFunc)(byte)) {
catSetVFO = userFunc;
}
////////////////////////////////////////////////////////////////////////////////
// Protocol Message Handling
////////////////////////////////////////////////////////////////////////////////
//
// Send a message back to CAT controller
// Format PREAMBLE, PREAMBLE, MSG, EOM
//
void IC746::send(byte *buf, int len) {
int i;
Serial.write(CAT_PREAMBLE);
Serial.write(CAT_PREAMBLE);
for (i = 0; i < len; i++) {
Serial.write(buf[i]);
}
Serial.write(CAT_EOM);
}
//
// sendAck() - send back hard-code acknowledge message
//
void IC746::sendAck() {
byte ack[] = {CAT_CTRL_ADDR, CAT_RIG_ADDR, CAT_ACK};
send(ack, 3);
}
//
// sendNack() - send back hard-code negative-acknowledge message
//
void IC746::sendNack() {
byte nack[] = {CAT_CTRL_ADDR, CAT_RIG_ADDR, CAT_NACK};
send(nack, 3);
}
/*
readCMD - state machine to receive a command from the controller
States:
CAT_RCV_WAITING - scan incoming serial data for first preamble byte
CAT_RCV_INIT - second premable byte confirms start of message
CAT_RCV_RECEIVING - fill command buffer until EOM received
Command format
|FE|FE|56|E0|cmd|sub-cmd|data|FD|
FE FE = preamble, FD = end of command
56 = transceiver default address for IC746 (unused)
E0 = CAT controller default address (unused)
Upon successful receipt of EOM, protocol requires echo back of enitre message
On interrupted preamble or buffer overflow (no EOM received), send NAK
On successful receipt of a command the global array cmdBuf
will have the received CAT command (without the preamble and EOM)
*/
boolean IC746::readCmd() {
byte bt;
boolean cmdRcvd = false;
while (Serial.available() && !cmdRcvd) {
bt = byte(Serial.read());
switch (rcvState) {
case CAT_RCV_WAITING: // scan for start of new command
if (bt == CAT_PREAMBLE) {
rcvState = CAT_RCV_INIT;
}
break;
case CAT_RCV_INIT: // check for second preamble byte
if (bt == CAT_PREAMBLE) {
rcvState = CAT_RCV_RECEIVING;
} else { // error - should not happen, reset and report
rcvState = CAT_RCV_WAITING;
bytesRcvd = 0;
sendNack();
}
break;
case CAT_RCV_RECEIVING:
switch (bt) {
case CAT_EOM: // end of message received, return for processing, reset state
send(cmdBuf, bytesRcvd); // echo received packet for protocol
cmdRcvd = true;
rcvState = CAT_RCV_WAITING;
cmdLength = bytesRcvd;
bytesRcvd = 0;
break;
default: // fill command buffer
if (bytesRcvd <= CAT_CMD_BUF_LENGTH) {
cmdBuf[bytesRcvd] = bt;
bytesRcvd++;
} else { // overflow - should not happen reset for new comand
rcvState = CAT_RCV_WAITING;
bytesRcvd = 0;
sendNack(); // report error
}
break;
}
break;
}
}
return cmdRcvd;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
//
// COMMAND PROCESSORS
//
///////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doSmeter() - process the CAT_READ_SMETER Command
// This command has two sub-commands, SMETER and SQUELCH, only SMETER is fully implemented
//
// The SMETER sub command requests the current Return S-meter readingscaled for IC 746 appropriate values
// It calls a user function returns 0-15 S0-9, +10, +20, +30, +40, +50 +60
// The mapping of s-units to IC746 equivalents done imperically using the CatBkt cat test program
//
// The second sub-command, SQUELCH request wheterh Squelch is open or closed. Return a fixed value
// of "Open" to keep the protocol happly
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doSmeter() {
switch (cmdBuf[CAT_IX_SUB_CMD]) {
case CAT_READ_SUB_SMETER:
if (catGetSmeter) {
const byte smap[] = {0, 20, 50, 70, 90, 110, 140, 150, 170, 180, 197, 201, 211, 216, 220, 230};
byte s;
s = catGetSmeter();
cmdBuf[CAT_IX_SMETER] = smap[s];
#ifdef DEBUG_CAT_SMETER
dbg = "doSmeter- s: ";
dbg += String(s);
dbg += " map: ";
dbg += String(smap[s]);
catDebug.println(dbg.c_str());
#endif
} else {
cmdBuf[CAT_IX_SMETER] = 0;
}
send(cmdBuf, 5);
break;
case CAT_READ_SUB_SQL: // Squelch condition 0=closed, 1=open
cmdBuf[CAT_IX_SQUELCH] = 1;
send(cmdBuf, 5);
break;
}
}
/*
BCD Version
void IC746::doSmeter() {
switch (cmdBuf[CAT_IX_SUB_CMD]) {
case CAT_READ_SUB_SMETER:
if (catGetSmeter) {
const byte smap[] = {0, 20, 50, 70, 90, 110, 140, 150, 170, 180, 197, 201, 211, 216, 220, 230};
byte s = catGetSmeter();
SmetertoBCD(smap[s]);
#ifdef DEBUG_CAT_DETAIL
dbg = "doSmeter- s:";
dbg += String(s);
dbg += " map: ";
dbg += String(smap[s]);
dbg += " BCD: ";
for (int i = CAT_IX_SMETER; i < CAT_IX_SMETER+2; i++) {
dbg += String(cmdBuf[i], HEX);
dbg += " ";
}
catDebug.println(dbg.c_str());
#endif
} else {
cmdBuf[CAT_IX_SMETER] = 0; // user has not supplied S Meter function - keep the protocol happy
cmdBuf[CAT_IX_SMETER + 1] = 0;
}
send(cmdBuf, 6);
break;
case CAT_READ_SUB_SQL: // Squelch condition 0=closed, 1=open
cmdBuf[CAT_IX_SQUELCH] = 1;
send(cmdBuf, 5);
break;
}
}
*/
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doPtt() - process the CAT_PTT Command
// CAT_PTT calls the user supplied functions to either put the rig in to Tx or Rx or to request the rigs
// current Tx/Rx state
//
// A "read ptt" request does not have a data byte and is therefore one byte shorter
// than a "set ptt" request.
// 56 | E0 | 1C | 00 - Read request 1C is PTT command, sub-command 0 is uused, no data byte
// 56 | E0 | 1C | 00 | 01 - Set Tx, trailing data bit 1 for Tx, 0 for Rx
////////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doPtt() {
if (cmdLength == 4) { // Read request
if (catGetPtt) {
cmdBuf[CAT_IX_PTT] = catGetPtt();
send(cmdBuf, 5);
}
} else { // Set request
if (catSetPtt) {
if (cmdBuf[CAT_IX_PTT] == CAT_PTT_TX) {
catSetPtt(true);
} else {
catSetPtt(false);
}
}
sendAck(); // always acknowledge "set" commands
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doSplit() - process the CAT_SPLIT Command
// Call user supplied function to turn split on or off
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doSplit() {
switch (cmdBuf[CAT_IX_SUB_CMD]) {
case CAT_SPLIT_OFF:
if (catSplit) {
catSplit(false);
}
break;
case CAT_SPLIT_ON:
if (catSplit) {
catSplit(true);
}
default:
break;
}
sendAck();
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doSetVfo() - process the CAT_SET_VFO Command, calls user supplied functions
// SET_VFO with no sub-command selects VFO Tuning vice Memory Tuning (memory tuning is not implemented)
// SET_VFO has four sub-commands:
// VFOA or VFOB - directs the rig to make the selected VFO the active VFO
// VFO_A_TO_B - directs the rig to copy the make both VFO frequencies the same as the Active VFO
// VFO_SWAP - directs the rig to exchange VFOA and VFOB
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doSetVfo() {
if (cmdLength == 4) { // No sub-command - sets VFO Tuning vice memory tuning
sendAck(); // Memory tuning is not implemented so send ack to keep protocol happy
}
switch (cmdBuf[CAT_IX_SUB_CMD]) {
case CAT_VFO_A:
case CAT_VFO_B:
if (catSetVFO) {
catSetVFO(cmdBuf[CAT_IX_SUB_CMD]);
}
break;
case CAT_VFO_A_TO_B:
if (catAtoB) {
catAtoB();
}
break;
case CAT_VFO_SWAP:
if (catSwapVfo) {
catSwapVfo();
}
break;
}
sendAck();
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doSetFreq() - proces CAT_SET_FREQ command
// Call the user supplied function to set the righ frequency
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doSetFreq() {
if (catSetFreq) {
catSetFreq(BCDtoFreq()); // Convert the frequency BCD to Long and call the user function
}
sendAck();
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doReadFreq() - process the CAT_READ_FREQ command
// Call the user supplied function to read set the rig frequency
// Frequecies are sent and received in BCD - call the support functions to do the conversion
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doReadFreq() {
if (catGetFreq) {
FreqtoBCD(catGetFreq()); // get the frequency, convert to BCD and stuff it in the response buffer
send(cmdBuf, 8);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doSetMode() - process the CAT_SET_MODE command
// Call the user function to put the rig into the requested mode. Only USB or LSB are supported.
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doSetMode() {
if (catSetMode) {
switch (cmdBuf[CAT_IX_SUB_CMD]) {
case CAT_MODE_LSB:
case CAT_MODE_USB:
catSetMode(cmdBuf[CAT_IX_SUB_CMD]);
break;
}
}
sendAck();
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doReadMode() - process the CAT_READ_MODE command
// Call the user function to query the rig's current mode
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doReadMode() {
if (catGetMode) {
cmdBuf[CAT_IX_MODE] = catGetMode();
send(cmdBuf, 4);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doMisc() - process the CAT_MISC command
//
// The MISC command has several unrelated sub-commands
// The only one implemented here is the sub-command to read the IF Filter Setting
// The code sends a hard-coded response since most homebrew rigs won't have such a setting
// but programs like WSJTX and FLDIGI request it
//
// The value of 29 was determined by reviewing the IC-7600 CI-V documentation is more complete than the IC-746 doc.
// The value of 29 equates to 2.5KHz which should be a reasonable value.
//
// Commands that "set" values are replied to with an ACK message
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doMisc() {
switch (cmdBuf[CAT_IX_SUB_CMD]) {
case CAT_READ_IF_FILTER:
// cmdBuf[CAT_IX_IF_FILTER] = 29; // Return a valid value - 29 represents 2.5K filter for SSB
cmdBuf[CAT_IX_IF_FILTER] = 0;
send(cmdBuf, 5);
break;
// Not implemented
// Reply with ACK to keep the protocol happy
case CAT_SET_MEM_CHAN:
case CAT_SET_BANDSTACK:
case CAT_SET_MEM_KEYER:
sendAck();
break;
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// doUnimplemented() - reasonable processing for features that are not fully implemented
//
// Unimplimented command handling
//
// These following commands are used to both set and read various parameters in the IC-746 that are not
// typically implemented in a homebrew transceiver.
// Commands requesting the state of various parameters require a data byte returned.
// We return zero in all cases which typically means the requsted feature is OFF - eg AGC, NB, VOX, etc.
// Command that "set" various parameters only require an ACK reply
// A "read" request has no data byte and is one byte shorter than a set request
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::doUnimplemented() {
if (cmdLength == 4) { // Read request
cmdBuf[CAT_IX_PTT] = 0; // return 0 for all read requests
send(cmdBuf, 5);
} else { // Set parameter request
sendAck(); // Send an acknowledgement to keep the protocol happy
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// check() - process commands from CAT controller, should be called from the sketch main loop
///////////////////////////////////////////////////////////////////////////////////////////////////////
void IC746::check() {
// do nothing if it was disabled by software
if (!enabled) return;
// Receive a CAT Command
if (!readCmd()) return;
#ifdef DEBUG_CAT_DETAIL
dbg = "rcvd: ";
dbg += String(cmdLength);
dbg += ": ";
for (int i = 0; i < cmdLength; i++) {
dbg += String(cmdBuf[i], HEX);
dbg += " ";
}
catDebug.println(dbg.c_str());
#endif
// Process the command - command opcode is at CAT_IX_CMD location in command buffer
switch (cmdBuf[CAT_IX_CMD]) {
case CAT_PTT:
doPtt();
break;
case CAT_SPLIT:
doSplit();
break;
case CAT_SET_VFO:
doSetVfo();
break;
case CAT_SET_FREQ:
doSetFreq();
break;
case CAT_SET_MODE:
doSetMode();
break;
case CAT_READ_MODE:
doReadMode();
break;
case CAT_READ_FREQ:
doReadFreq();
break;
case CAT_READ_SMETER:
doSmeter();
break;
case CAT_MISC:
doMisc();
break;
case CAT_READ_ID:
cmdBuf[CAT_IX_ID] = CAT_RIG_ADDR; // Send back the transmitter ID
send(cmdBuf, 5);
break;
// Unimplemented commands that request data from the rig - keep the protocol happy
case CAT_ATT:
case CAT_SET_PARAMS2:
case CAT_READ_OFFSET:
doUnimplemented();
break;
default: // For all other commands respond with an ACK
#ifdef DEBUG_CAT
dbg = "unimp cmd: ";
dbg += String(cmdBuf[CAT_IX_CMD], HEX);
catDebug.println(dbg.c_str());
#endif
sendAck();
break;
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
//
// UTILITY FUNCTIONS
//
///////////////////////////////////////////////////////////////////////////////////////////////////////
//
// BCD FrequencyConversion Routines
// Convert BCD frequency to/from command buffer to/from long
// Format (beginning at first data byte in buffer is
// Byte 0 10Hz | 1Hz
// Byte 1 1KHz | 100Hz
// Byte 2 100KHz | 10KHz
// Byte 3 10MHz | 1MHz
// Example: 7,123,456 is encoded 56 | 34 | 12 | 07
//
long IC746::BCDtoFreq() {
long freq;
freq = cmdBuf[CAT_IX_FREQ] & 0xf; // lower 4 bits
freq += 10L * (cmdBuf[CAT_IX_FREQ] >> 4); // upper 4 bits
freq += 100L * (cmdBuf[CAT_IX_FREQ + 1] & 0xf);
freq += 1000L * (cmdBuf[CAT_IX_FREQ + 1] >> 4);
freq += 10000L * (cmdBuf[CAT_IX_FREQ + 2] & 0xf);
freq += 100000L * (cmdBuf[CAT_IX_FREQ + 2] >> 4);
freq += 1000000L * (cmdBuf[CAT_IX_FREQ + 3] & 0xf);
freq += 10000000L * (cmdBuf[CAT_IX_FREQ + 3] >> 4);
return freq;
}
void IC746::FreqtoBCD(long freq) {
byte ones, tens, hund, thou, ten_thou, hund_thou, mil, ten_mil;
ones = byte(freq % 10);
tens = byte((freq / 10L) % 10);
cmdBuf[CAT_IX_FREQ] = byte((tens << 4)) | ones;
hund = byte((freq / 100L) % 10);
thou = byte((freq / 1000L) % 10);
cmdBuf[CAT_IX_FREQ + 1] = byte((thou << 4)) | hund;
ten_thou = byte((freq / 10000L) % 10);
hund_thou = byte((freq / 100000L) % 10);
cmdBuf[CAT_IX_FREQ + 2] = byte((hund_thou << 4)) | ten_thou;
mil = byte((freq / 1000000L) % 10);
ten_mil = byte(freq / 10000000L);
cmdBuf[CAT_IX_FREQ + 3] = byte((ten_mil << 4)) | mil;
cmdBuf[CAT_IX_FREQ + 4] = 0; // fixed
}
void IC746::SmetertoBCD(byte s) {
byte ones, tens, hund;
ones = byte(s % 10);
tens = byte((s / byte(10)) % 10);
cmdBuf[CAT_IX_SMETER] = byte((tens << 4)) | ones;
hund = byte((s / byte(100)) % 10);
cmdBuf[CAT_IX_SMETER + 1] = hund;
}

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IC746.h 100644
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/*************************************************************************
IC746 CAT Library, by KK4DAS, Dean Souleles
11/24/2021
Inspired by: FT857D CAT Library, by Pavel Milanes, CO7WT, pavelmc@gmail.com
The goal of this lib is to emulate an ICOM 746 CAT functionality
to work with all ham radio software that include CAT control
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/>.
* **************************************************************************/
#ifndef IC746_h
#define IC746_h
#include "Arduino.h"
/*
CAT Command definitions from IC746 Manual
*/
// Protocol
#define CAT_PREAMBLE 0xFE // sent twice at start of command
#define CAT_EOM 0xFD // end of message
#define CAT_ACK 0xFB // OK
#define CAT_NACK 0xFA // No good
#define CAT_RIG_ADDR 0x56 // Rig ID for IC746
#define CAT_CTRL_ADDR 0xE0 // Controller ID
// Commands
#define CAT_SET_TCV_FREQ 0x00 // Not implemented
#define CAT_SET_TCV_MODE 0x01 // Not implemented
#define CAT_READ_BAND_EDGE 0x02 // Not implemented
#define CAT_READ_FREQ 0x03
#define CAT_READ_MODE 0x04
#define CAT_SET_FREQ 0x05
#define CAT_SET_MODE 0x06
#define CAT_SET_VFO 0x07
#define CAT_SEL_MEM 0x08 // Not implemented
#define CAT_WRITE_MEM 0x09 // Not implemented
#define CAT_MEM_TO_VFO 0x0A // Not implemented
#define CAT_CLEAR_MEM 0x0B // Not implemented
#define CAT_READ_OFFSET 0x0C // Not implemented
#define CAT_SET_OFFSET 0x0D // Not implemented
#define CAT_SCAN 0x0E // Not implemented
#define CAT_SPLIT 0x0F
#define CAT_SET_STEP 0x10 // Not implemented
#define CAT_ATT 0x11 // Not implemented
#define CAT_SEL_ANT 0x12 // Not implemented
#define CAT_SET_UT102 0x13 // Not implemented
#define CAT_SET_PARAMS1 0x14 // Not implemented
#define CAT_READ_SMETER 0x15 // Only impemented read S-Meter
#define CAT_SET_PARAMS2 0x16 // Not implemented (various settings)
#define CAT_READ_ID 0x19
#define CAT_MISC 0x1A // Only implemented sub-command 3 Read IF filter
#define CAT_SET_TONE 0x1B // Not implemented (VHF/UHF)
#define CAT_PTT 0x1C
/*
CAT Sub COmmands
*/
// Mode Subcommand
#define CAT_MODE_LSB 0x00
#define CAT_MODE_USB 0x01
#define CAT_MODE_AM 0x02 // Not implemented
#define CAT_MODE_CW 0x03 // Not implemented
#define CAT_MODE_RTTY 0x04 // Not implemented
#define CAT_MODE_FM 0x05 // Not implemented
#define CAT_MODE_CW_R 0x06 // Not implemented
#define CAT_MODE_RTTY_R 0x07 // Not implemented
// VFO Subcommand
#define CAT_VFO_A 0x00
#define CAT_VFO_B 0x01
#define CAT_VFO_A_TO_B 0xA0
#define CAT_VFO_SWAP 0xB0
// Split Subcommand
#define CAT_SPLIT_OFF 0x00
#define CAT_SPLIT_ON 0x01
#define CAT_SIMPLE_DUP 0x02 // Not implemented
#define CAT_MINUS_DUP 0x03 // Not implemented
#define CAT_PLUS_DUP 0x04 // Not implemented
// S-Meter / Squelch Subcommand
#define CAT_READ_SUB_SQL 0x01 // Not implemented (squelch)
#define CAT_READ_SUB_SMETER 0x02
// PTT Subcommand
#define CAT_PTT_RX 0x00
#define CAT_PTT_TX 0x01
// 1A - MISC Subcommands
#define CAT_SET_MEM_CHAN 0x00 // Not implemented
#define CAT_SET_BANDSTACK 0x01 // Not implemented
#define CAT_SET_MEM_KEYER 0x02 // Not implemented
#define CAT_READ_IF_FILTER 0x03 // Hard coded response to keep WSJTX and other CAT controllers happy
// Command Receive States
#define CAT_RCV_WAITING 0 // waiting for 1st preamble byte
#define CAT_RCV_INIT 1 // waiting for 2nd preamble byte
#define CAT_RCV_RECEIVING 2 // waiting for command bytes
// Command buffer (without preamble and EOM)
// |FE|FE|56|E0|cmd|sub-cmd|data|FD| // Preamble (FE) and EOM (FD) are discarded leaving
// 2 addr bytes , 1 command, 1 sub-command, up to 12 data, (longest is unimplemented edge frequency)
#define CAT_CMD_BUF_LENGTH 16
// defining the funtion type by params
typedef void (*FuncPtrVoid)(void);
typedef long (*FuncPtrVoidLong)(void);
typedef byte (*FuncPtrVoidByte)(void);
typedef void (*FuncPtrBoolean)(boolean);
typedef boolean (*FuncPtrVoidBoolean)(void);
typedef void (*FuncPtrByte)(byte);
typedef void (*FuncPtrLong)(long);
/*
The class...
*/
class IC746 {
public:
// we have two kind of constructors here
void begin(); // default for the radio 9600 @ 8N2
void begin(long baudrate, int mode); // custom baudrate and mode
void check(); // periodic check for serial commands
// the functions that links the lib with user supplied functions
void addCATPtt(void (*)(boolean));
void addCATsplit(void (*)(boolean));
void addCATAtoB(void (*)(void));
void addCATSwapVfo(void (*)(void));
void addCATFSet(void (*)(long));
void addCATMSet(void (*)(byte));
void addCATVSet(void (*)(byte));
void addCATGetFreq(long (*)(void));
void addCATGetMode(byte (*)(void));
void addCATGetPtt(boolean (*)(void));
void addCATSMeter(byte (*)(void));
boolean enabled = true;
private:
byte cmdBuf[CAT_CMD_BUF_LENGTH];
byte rcvState = CAT_RCV_WAITING;
boolean cmdRcvd = false;
int bytesRcvd = 0;
int cmdLength = 0;
long freq = 0;
void setFreq(void);
void sent(void);
void send(byte *, int);
void sendAck(void);
void sendNack(void);
boolean readCmd(void);
long BCDtoFreq(void);
void FreqtoBCD(long);
void SmetertoBCD(byte s);
void doSmeter();
void doPtt();
void doSplit();
void doSetVfo();
void doSetFreq();
void doReadFreq();
void doSetMode();
void doReadMode();
void doMisc();
void doUnimplemented();
};
#endif

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Put the "IC746CAT" folder in your Arduino "libraries" folder.

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EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
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>.

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# IC746CAT
ICOM IC-746 Computer Aided Transceiver (CAT( control emulation for Android
# ICOM IC-746 CAT control emulation for Arduino #
This library give support to any sketch to act as an ICOM IC-746 radio once you configure it correctly.
Documentation for the ICOM IC-746 may be found here:
https://www.icomamerica.com/en/downloads/default.aspx?Category=42
The following functions are implemented
* PTT (ON/OFF)
* VFO A/B Selection
* VFO Swap
* VFO Set A=B
* Split (On/Off)
* Frequency GET/SET
* Mode GET/SET (USB, LSB only)
* S-meter level GET
All other functions are coded to give correct reasoable responses to other CAT commands.
I have found this set of functions to be all that is required for the majorit of logging programs and digital modes such as the WSJTX suite and FLDIGI.
## Supported software ##
So far we have tested support for the following CAT capable software:
* Hamlib
* Fldigi (using Hamlib)
* WSJTX
* CatBKT
* Ham Radio Deluxe
If you use find this library does not work with any particular CAT enabled software please let me know via the "Issues" tab on Github.
## Tips for developers: ##
The library implements the IC-746 version of ICOM's CI-V protocol. I chose the IC-746 as the target as it is the first in the ICOM linde to implement all of what is needed to run digital modes easily and doesn't have too many extra features to code around.
The CI-V protocol is reasonably well documented but I have made some some assumptions about appropriate responses. I referred to the IC-7600 CIV referece manual which has much additional detail. I did not have an IC-746 available for comparison, but I tested with the Hamlib rigctl program and all functions work without error. I also have tested with WSJTX, FLDIGI and Ham Radio Deluxe. I found the program CatBkt to be especially helpful as it exposes many controls that are not used in other programs.
The library is coded to give reasonable responsed to 100% of the IC-746 cat protocol commands whether or not the feature is actually implemented.
## Inspiration ##
This library has was inspired by the work of Pavel Milanes, C07WT on his Yaes FT-857D library
## Installation ##
Copy the IC746CAT folder to the Arduino libraries folder.
## Usage ##
The libary uses the the hardware serial port "Serial" to communcate with the CAT controller softaware. The default paramters are baud 19200, N81, the same as the IC-746.
To use the library you must code a few custom call back functions and register them with the library. Your callbacks will require specific parameters and return values based on the particular command. Your functions will be called by the CAT libary upon receipt of the relevant CAT commands. Your functions need to take whatever actions are necessary to implement the command and where requested, return the appropriate value to the library for transmission back to the CAT controller.
Here is a code sample:
in your sketch:
#include <IC746.h>
IC746 radio = IC746();
long frequency = 7200000;
byte activVFO = CAT_VFO_A;
long catGetFreq() {
return frequency;
}
void catSetVFO(byte vfo) {
if (vfo == CAT_VFO_A) {
activeVFO = CAT_VFO_A;
} else {
activeVFO = CAT_VFO_B;
}
}
In your setup() function register your callbacks and start the interface:
radio.addCATGetFreq(catGetFreq);
radio.addCATVSet(catSetVFO);
radio.begin();
In your main loop call the check() function:
radio.check()
See the example sketch for more examples.
A word on the example sketch. It is configured to write debug output to a ILI9341 TFT using the Adafruit libraries, because that is what I had on the bench. It should be straightforward to modify it to use SoftwareSerial or other output device of your choice.
## Author & contributors ##
The only author is Dean Souleles, KK4DAS, reachable at kk4das@gmail.com.
## Where to download the latest version? ##
Always download the latest version from the [github repository](https://github.com/KK4DAS/IC746/)

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#include "IC746.h"
#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"
// DEBUG flag, uncomment for testing
#define DEBUG true
//#define DEBUG2 // turning off debug of read requests makes it easier to follow
// For the Adafruit shield, these are the default.
#define TFT_DC 9
#define TFT_CS 10
#define TFT_MOSI 11
#define TFT_CLK 13
#define TFT_RST 8
#define TFT_MISO 12
// Use hardware SPI (on Uno, #13, #12, #11) and the above for CS/DC
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
int ln = 0;
IC746 radio = IC746();
// variables
unsigned long freq = 7074000l;
unsigned long bfreq = 14125000l;
boolean splitActive = false;
#define VFO_A 0
#define VFO_B 1
byte activeVFO = VFO_A;
// radio modes
#define MODE_LSB 00
#define MODE_USB 01
byte mode = MODE_USB;
#define PTT_RX 0
#define PTT_TX 1
byte ptt = PTT_RX;
// function to run when we must put radio on TX/RX
void catSetPtt(boolean catPTT) {
// the var ptt follows the value passed, but you can do a few more thing here
if (catPTT) {
ptt = PTT_TX;
} else {
ptt = PTT_RX;
}
#if defined (DEBUG)
String msg = "SetPTT: ";
if (catPTT) {
msg += "Tx";
} else {
msg += "Rx";
}
displayPrintln(msg);
#endif
}
boolean catGetPtt() {
#if defined (DEBUG2)
String msg = "GetPTT: ";
if (ptt == PTT_TX) {
msg += "Tx";
} else {
msg += "Rx";
}
displayPrintln(msg);
#endif
if (ptt == PTT_TX) {
return true;
} else {
return false;
}
}
// function to run to toggle Split mode on and off
void catSetSplit(boolean catSplit) {
// the var ptt follows the value passed, but you can do a few more thing here
if (catSplit) {
splitActive = true;
} else {
splitActive = false;
}
#if defined (DEBUG)
String msg = "SetSplit: ";
if (catSplit) {
msg += "On";
} else {
msg += "Off";
}
displayPrintln(msg);
#endif
}
// function to run when
void catSwapVfo() {
// Swap the active VFO
if (activeVFO == VFO_A) {
activeVFO = VFO_B;
} else {
activeVFO = VFO_A;
}
#if defined (DEBUG)
// debug
displayPrintln("swapVfo");
#endif
}
// function to set a freq from CAT
void catSetFreq(long f) {
// the var freq follows the value passed, but you can do a few more thing here
if (activeVFO == VFO_A) {
freq = f;
} else {
bfreq = f;
}
#if defined (DEBUG)
// debug
String msg = "SetFreq: ";
msg += String(f);
displayPrintln(msg);
#endif
}
// function to set the mode from the cat command
void catSetMode(byte m) {
if (m == CAT_MODE_LSB) {
mode = MODE_LSB;
} else {
mode = MODE_USB;
}
#if defined (DEBUG)
String msg = "SetMode: ";
if (mode == MODE_LSB) {
msg += "LSB";
} else {
msg += "USB";
}
displayPrintln(msg);
#endif
}
// function to set the active VFO from the cat command
void catSetVFO(byte v) {
if (v == CAT_VFO_A) {
activeVFO = CAT_VFO_A;
} else {
activeVFO = CAT_VFO_B;
}
#if defined (DEBUG)
String msg = "SetVFO: ";
if (v == CAT_VFO_A) {
msg += "VFO-A";
} else {
msg += "VFO-B";
}
displayPrintln(msg);
#endif
}
// Function to make VFOS the same
void catVfoAtoB() {
if (activeVFO == VFO_A) {
bfreq = freq;
} else {
freq = bfreq;
}
#if defined (DEBUG)
String msg = "VfoAtoB";
displayPrintln(msg);
#endif
}
// function to pass the freq to the cat library
long catGetFreq() {
// this must return the freq as an unsigned long in Hz, you must prepare it before
long f;
if (activeVFO == VFO_A) {
f = freq;
} else {
f = bfreq;
}
#if defined (DEBUG2)
// debug
String msg = "GetFreq: ";
msg += String(f);
displayPrintln(msg);
#endif
// pass it away
return f;
}
// function to pass the mode to the cat library
byte catGetMode() {
// this must return the mode in the wat the CAT protocol expect it
byte catMode;
#if defined (DEBUG2)
// debug
String msg = String("GetMode: ");
if (mode == MODE_LSB) {
msg += "LSB";
} else {
msg += "USB";
}
displayPrintln(msg);
#endif
if (mode == MODE_LSB) {
catMode = CAT_MODE_LSB;
} else {
catMode = CAT_MODE_USB;
}
return catMode;
}
// function to pass the smeter reading in RX mode
byte catGetSMeter() {
static int s = 0;
static byte counter = 0;
if (counter == 5) {
counter = 0;
if (s == 15) {
s=0;
} else {
s++;
}
} else {
counter++;
}
// Return 0-9, 10=S9+10 - 15=S9+60
#if defined (DEBUG2)
// debug
String msg = "GetSMeter: ";
msg += s;
displayPrintln(msg);
#endif
// pass it away (fixed here just for testing)
return byte(s);
}
void displayPrintln(String s ) {
if (ln == 14) {
tft.fillScreen(ILI9341_BLACK);
tft.setCursor(0, 0);
ln = 0;
}
tft.println(s);
ln++;
}
void setup() {
//
// Setup Display
tft.begin();
tft.setRotation(1);
tft.fillScreen(ILI9341_BLACK);
tft.setCursor(0, 0);
tft.setTextColor(ILI9341_WHITE); tft.setTextSize(2);
// preload the vars in the cat library
radio.addCATPtt(catSetPtt);
radio.addCATGetPtt(catGetPtt);
radio.addCATAtoB(catVfoAtoB);
radio.addCATSwapVfo(catSwapVfo);
radio.addCATsplit(catSetSplit);
radio.addCATFSet(catSetFreq);
radio.addCATMSet(catSetMode);
radio.addCATVSet(catSetVFO);
radio.addCATGetFreq(catGetFreq);
radio.addCATGetMode(catGetMode);
radio.addCATSMeter(catGetSMeter);
// now we activate the library
radio.begin(19200, SERIAL_8N1);
#if defined (DEBUG)
displayPrintln("CAT Serial Test Ready");
#endif
}
void loop() {
radio.check();
}

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#######################################
# Syntax Coloring Map For ft857d
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
ft857d KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
begin KEYWORD2
check KEYWORD2
enabled KEYWORD2
addCATPtt KEYWORD2
addCATGetPtt KEYWORD2
addCATsplit KEYWORD2
addCATAtoB KEYWORD2
addCATFSet KEYWORD2
addCATMSet KEYWORD2
addCATVSet KEYWORD2
addCATGetFreq KEYWORD2
addCATGetMode KEYWORD2
addCATSMeter KEYWORD2
addCATSwapVfo KEYWORD2
#######################################
# Instances (KEYWORD2)
#######################################
#######################################
# Constants (LITERAL1)
#######################################

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name=ICOM 746 CAT Control
version=1.0.0
author=Dean Souleles, KK4DAS, <kk4das@gmail.com>
maintainer=Dean Souleles, KK4DAS, <kk4das@gmail.com>
sentence=Simulate an ICOM 746 radio from the CAT point of view.
paragraph=This lirary emulates the Computer Assisted Transceiver (CAT) control behavior of an ICOM 746. It is intended to be included in a conrol program for an amateur radio. It provides all of the functionality required for programs like FLDIG and WSJTX to be able to control your rig.
category=Other
url=https://github.com/KK4DAS/IC746/
architectures=*