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Get loco Id API test

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This commit is contained in:
Asbelos 2020-06-08 13:04:47 +01:00
parent 7a20896c8c
commit f8f4268a48
3 changed files with 111 additions and 26 deletions
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8
CVReader.ino
View File

@ -14,16 +14,16 @@
*/
void myCallback(int result) {
DIAG(F("\n Reading CV 1 callback result=%d"),result);
DIAG(F("\n getting Loco Id callback result=%d"),result);
}
void setup() {
Serial.begin(115200);
DCC::begin();
DIAG(F("\n===== CVReader demonstrating DCC::readCV call ==========\n"));
DCC::readCV(1,myCallback); // myCallback will be called with the result
DIAG(F("\n===== DCC::readCV has returned, but wont be executed until we are in loop() ======\n"));
DIAG(F("\n===== CVReader demonstrating DCC::getLocoId() call ==========\n"));
DCC::getLocoId(myCallback); // myCallback will be called with the result
DIAG(F("\n===== DCC::getLocoId has returned, but wont be executed until we are in loop() ======\n"));
DIAG(F("\nReady for JMRI commands\n"));
}

119
DCC.cpp
View File

@ -160,6 +160,55 @@ const ackOp PROGMEM READ_CV_PROG[] = {
FAIL }; // verification failed
const ackOp PROGMEM LOCO_ID_PROG[] = {
BASELINE,
SETCV,(ackOp)29,
SETBIT,(ackOp)5,
V0, WACK, ITSKIP, // Skip to SKIPTARGET if bit 5 of CV29 is zero
// Long locoid
SETCV, (ackOp)17, // CV 17 is part of locoid
STARTMERGE,
V0, WACK, MERGE, // read and merge bit 1 etc
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
VB, WACK, NAKFAIL, // verify merged byte and return -1 it if not acked ok
STASHLOCOID, // keep stashed cv 17 for later
// Read 2nd part from CV 18
SETCV, (ackOp)18,
STARTMERGE,
V0, WACK, MERGE, // read and merge bit 1 etc
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
VB, WACK, NAKFAIL, // verify merged byte and return -1 it if not acked ok
COMBINELOCOID, // Combile byte with stash to make long locoid and callback
// ITSKIP Skips to here if CV 29 bit 5 was zero. so read CV 1 and return that
SKIPTARGET,
SETCV, (ackOp)1,
STARTMERGE,
V0, WACK, MERGE, // read and merge bit 1 etc
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
V0, WACK, MERGE,
VB, WACK, ITCB, // verify merged byte and callback
FAIL
};
void DCC::writeCVByte(int cv, byte byteValue, ACK_CALLBACK callback) {
ackManagerSetup(cv, byteValue, WRITE_BYTE_PROG, callback);
@ -181,6 +230,9 @@ void DCC::readCV(int cv, ACK_CALLBACK callback) {
ackManagerSetup(cv, 0,READ_CV_PROG, callback);
}
void DCC::getLocoId(ACK_CALLBACK callback) {
ackManagerSetup(0,0, LOCO_ID_PROG, callback);
}
void DCC::loop() {
DCCWaveform::loop(); // power overload checks
@ -205,27 +257,6 @@ void DCC::loop() {
}
}
void DCC::getLocoId(ACK_CALLBACK callback) {
callback(-1); // Not yet implemented
//
// switch (readCVBit(29, 5)) {
// case 1:
// // long address : get CV#17 and CV#18
// {
// int cv17 = readCV(17);
//
// if (cv17 < 0) break;
// int cv18 = readCV(18);
// if (cv18 < 0) break;
// return cv18 + ((cv17 - 192) << 8);
// }
// case 0: // short address in CV1
// return readCV(1);
// default: // No response or loco
// break;
// }
// return -1;
}
///// Private helper functions below here /////////////////////
@ -263,6 +294,7 @@ int DCC::nextLoco = 0;
//ACK MANAGER
ackOp const * DCC::ackManagerProg;
byte DCC::ackManagerByte;
byte DCC::ackManagerStash;
int DCC::ackManagerCv;
byte DCC::ackManagerBitNum;
bool DCC::ackReceived;
@ -372,6 +404,14 @@ void DCC::ackManagerLoop() {
}
break;
case NAKFAIL: // If nack callback(-1)
if (!ackReceived) {
ackManagerProg = NULL; // all done now
(ackManagerCallback)(-1);
return;
}
break;
case FAIL: // callback(-1)
ackManagerProg = NULL;
(ackManagerCallback)(-1);
@ -388,7 +428,44 @@ void DCC::ackManagerLoop() {
if (!ackReceived) ackManagerByte |= 1;
ackManagerBitNum--;
break;
case SETBIT:
ackManagerProg++;
ackManagerBitNum=pgm_read_byte_near(ackManagerProg);
break;
case SETCV:
ackManagerProg++;
ackManagerCv=pgm_read_byte_near(ackManagerProg);
break;
case STASHLOCOID:
ackManagerStash=ackManagerByte; // stash value from CV17
break;
case COMBINELOCOID:
// ackManagerStash is cv17, ackManagerByte is CV 18
ackManagerProg=NULL;
(ackManagerCallback)( ackManagerByte + ((ackManagerStash - 192) << 8));
return;
case ITSKIP:
if (!ackReceived) break;
// SKIP opcodes until SKIPTARGET found
while (opcode!=SKIPTARGET) {
ackManagerProg++;
opcode=pgm_read_byte_near(ackManagerProg);
}
// DIAG(F("\nSKIPTARGET located\n"));
break;
case SKIPTARGET:
break;
default:
// DIAG(F("!! ackOp %d FAULT!!"),opcode);
ackManagerProg=NULL;
(ackManagerCallback)( -1);
return;
} // end of switch
ackManagerProg++;
}

10
DCC.h
View File

@ -16,9 +16,16 @@ WACK, // wait for ack (or absence of ack)
ITC1, // If True Callback(1) (if prevous WACK got an ACK)
ITC0, // If True callback(0);
ITCB, // If True callback(byte)
NAKFAIL, // if false callback(-1)
FAIL, // callback(-1)
STARTMERGE, // Clear bit and byte settings ready for merge pass
MERGE // Merge previous wack response with byte value and decrement bit number (use for readimng CV bytes)
MERGE, // Merge previous wack response with byte value and decrement bit number (use for readimng CV bytes)
SETBIT, // sets bit number to next prog byte
SETCV, // sets cv number to next prog byte
STASHLOCOID, // keeps current byte value for later
COMBINELOCOID, // combines current value with stashed value and returns it
ITSKIP, // skip to SKIPTARGET if ack true
SKIPTARGET=0xFF // jump to target
};
class DCC {
@ -62,6 +69,7 @@ private:
static byte ackManagerByte;
static byte ackManagerBitNum;
static int ackManagerCv;
static byte ackManagerStash;
static bool ackReceived;
static int ackTriggerMilliamps;
static ACK_CALLBACK ackManagerCallback;