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RailcomTimer not started on Uno anyway - remove it from compile as the optimizer is not smart enough to do it for us

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This commit is contained in:
Harald Barth 2025-07-08 00:06:47 +02:00
parent 2797ca0d1b
commit 7b1e396d96
1 changed files with 4 additions and 0 deletions
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DCCTimerAVR.cpp
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@ -61,6 +61,7 @@ void DCCTimer::begin(INTERRUPT_CALLBACK callback) {
void DCCTimer::startRailcomTimer(byte brakePin) { void DCCTimer::startRailcomTimer(byte brakePin) {
#if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
/* The Railcom timer is started in such a way that it /* The Railcom timer is started in such a way that it
- First triggers 28uS after the last TIMER1 tick. - First triggers 28uS after the last TIMER1 tick.
This provides an accurate offset (in High Accuracy mode) This provides an accurate offset (in High Accuracy mode)
@ -113,10 +114,13 @@ void DCCTimer::startRailcomTimer(byte brakePin) {
// it does seems to get a good answer. // it does seems to get a good answer.
TCNT2=193 + (ICR1 - TCNT1)/8; TCNT2=193 + (ICR1 - TCNT1)/8;
#endif
} }
void DCCTimer::ackRailcomTimer() { void DCCTimer::ackRailcomTimer() {
#if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
OCR2B= 0x00; // brake pin pwm duty cycle 0 at next tick OCR2B= 0x00; // brake pin pwm duty cycle 0 at next tick
#endif
} }