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function bits to freqency step #2

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This commit is contained in:
Harald Barth 2023-12-30 22:09:01 +01:00
parent adb8b56c92
commit 67387d2dc3
5 changed files with 20 additions and 8 deletions
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12
DCC.cpp
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@ -138,7 +138,7 @@ void DCC::setFunctionInternal(int cab, byte byte1, byte byte2, byte count) {
// returns speed steps 0 to 127 (1 == emergency stop)
// or -1 on "loco not found"
int8_t DCC::getThrottleSpeed(int cab) {
static int8_t DCC::getThrottleSpeed(int cab) {
int reg=lookupSpeedTable(cab);
if (reg<0) return -1;
return speedTable[reg].speedCode & 0x7F;
@ -146,13 +146,21 @@ int8_t DCC::getThrottleSpeed(int cab) {
// returns speed code byte
// or 128 (speed 0, dir forward) on "loco not found".
uint8_t DCC::getThrottleSpeedByte(int cab) {
static uint8_t DCC::getThrottleSpeedByte(int cab) {
int reg=lookupSpeedTable(cab);
if (reg<0)
return 128;
return speedTable[reg].speedCode;
}
// returns -1 for fault, 0 to 3 for frequency
static int8_t DCC::getThrottleFrequency(int cab) {
int reg=lookupSpeedTable(cab);
if (reg<0)
return -1;
return (int8_t)(speedTable[reg].functions >>29); // shift out first 29 bits so we have the "frequency bits" left
}
// returns direction on loco
// or true/forward on "loco not found"
bool DCC::getThrottleDirection(int cab) {

1
DCC.h
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@ -61,6 +61,7 @@ public:
static void setThrottle(uint16_t cab, uint8_t tSpeed, bool tDirection);
static int8_t getThrottleSpeed(int cab);
static uint8_t getThrottleSpeedByte(int cab);
static int8_t getThrottleFrequency(int cab);
static bool getThrottleDirection(int cab);
static void writeCVByteMain(int cab, int cv, byte bValue);
static void writeCVBitMain(int cab, int cv, byte bNum, bool bValue);

6
MotorDriver.cpp
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@ -325,7 +325,7 @@ uint16_t taurustones[28] = { 165, 175, 196, 220,
220, 196, 175, 165 };
#endif
#endif
void MotorDriver::setDCSignal(byte speedcode) {
void MotorDriver::setDCSignal(byte speedcode, uint8_t frequency /*default =0*/) {
if (brakePin == UNUSED_PIN)
return;
// spedcoode is a dcc speed & direction
@ -341,7 +341,7 @@ void MotorDriver::setDCSignal(byte speedcode) {
{ // new block because of variable f
#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_STM32)
int f = 131;
int f = frequency;
#ifdef VARIABLE_TONES
if (tSpeed > 2) {
if (tSpeed <= 58) {
@ -352,7 +352,7 @@ void MotorDriver::setDCSignal(byte speedcode) {
DCCTimer::DCCEXanalogWriteFrequency(brakePin, f); // set DC PWM frequency to 100Hz XXX May move to setup
DCCTimer::DCCEXanalogWrite(brakePin,brake);
#else // all AVR here
DCCTimer::DCCEXanalogWriteFrequency(brakePin, 0); // 0 is lowest possible f, like 120Hz
DCCTimer::DCCEXanalogWriteFrequency(brakePin, frequency); // frequency steps 0 to 3
analogWrite(brakePin,brake);
#endif
}

2
MotorDriver.h
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@ -187,7 +187,7 @@ class MotorDriver {
}
};
inline pinpair getSignalPin() { return pinpair(signalPin,signalPin2); };
void setDCSignal(byte speedByte);
void setDCSignal(byte speedByte, uint8_t frequency=0);
void throttleInrush(bool on);
inline void detachDCSignal() {
#if defined(__arm__)

5
TrackManager.cpp
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@ -348,8 +348,11 @@ bool TrackManager::setTrackMode(byte trackToSet, TRACK_MODE mode, int16_t dcAddr
}
void TrackManager::applyDCSpeed(byte t) {
int8_t frequency = DCC::getThrottleFrequency(trackDCAddr[t]);
if (frequency <0) // loco was not found
frequency = 0; // default
uint8_t speedByte = DCC::getThrottleSpeedByte(trackDCAddr[t]);
track[t]->setDCSignal(speedByte);
track[t]->setDCSignal(speedByte, (uint8_t)frequency);
}
bool TrackManager::parseEqualSign(Print *stream, int16_t params, int16_t p[])