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Merge pull request #14976 from stefanbode/patch-9 

Stabilize zero-cross dimmer
This commit is contained in:
Theo Arends 2022-02-26 12:16:33 +01:00 committed by GitHub
parent 0e3b35962d 8ad5a1a1d1
commit 30ca2f6426
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 82 additions and 41 deletions
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8
tasmota/settings.ino
View File

@ -624,7 +624,9 @@ void SettingsSave(uint8_t rotate) {
Settings->cfg_size = sizeof(TSettings);
Settings->cfg_crc = GetSettingsCrc(); // Keep for backward compatibility in case of fall-back just after upgrade
Settings->cfg_crc32 = GetSettingsCrc32();
#ifdef USE_COUNTER
CounterInterruptDisable(true);
#endif
#ifdef ESP8266
#ifdef USE_UFILESYS
TfsSaveFile(TASM_FILE_SETTINGS, (const uint8_t*)Settings, sizeof(TSettings));
@ -650,8 +652,10 @@ void SettingsSave(uint8_t rotate) {
}
#endif // FIRMWARE_MINIMAL
RtcSettingsSave();
#ifdef USE_COUNTER
CounterInterruptDisable(false);
#endif
}
void SettingsLoad(void) {
#ifdef ESP8266
// Load configuration from optional file and flash (eeprom and 7 additonal slots) if first valid load does not stop_flash_rotate

91
tasmota/xsns_01_counter.ino
View File

@ -2,6 +2,7 @@
xsns_01_counter.ino - Counter sensors (water meters, electricity meters etc.) sensor support for Tasmota
Copyright (C) 2021 Maarten Damen and Theo Arends
Stefan Bode (Zero-Cross Dimmer)
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
@ -50,12 +51,14 @@ struct COUNTER {
#ifdef USE_AC_ZERO_CROSS_DIMMER
struct AC_ZERO_CROSS_DIMMER {
bool startReSync = false;
bool startMeasurePhase[MAX_COUNTERS] ;
bool PWM_ON[MAX_COUNTERS] ;
uint32_t current_cycle_ClockCycles = 0;
uint32_t dimm_timeClockCycles = 0;
uint32_t currentCycleCount = 0;
uint32_t currentPWMCycleCount[MAX_COUNTERS] ;
uint32_t tobe_cycle_timeClockCycles = 0;
uint32_t lastCycleCount = 0;
uint32_t currentSteps = 100;
uint32_t high;
} ac_zero_cross_dimmer;
#endif //USE_AC_ZERO_CROSS_DIMMER
@ -88,17 +91,24 @@ void IRAM_ATTR CounterIsrArg(void *arg) {
// restart PWM each second (german 50Hz has to up to 0.01% deviation)
// restart initiated by setting Counter.startReSync = true;
#ifdef USE_AC_ZERO_CROSS_DIMMER
if (RtcSettings.pulse_counter[index]%(Settings->pwm_frequency / (Light.fade_running ? 10:1))== 0 && PinUsed(GPIO_PWM1, index) && Settings->flag4.zerocross_dimmer) {
ac_zero_cross_dimmer.currentCycleCount = ESP.getCycleCount();
if (Settings->flag4.zerocross_dimmer && ac_zero_cross_dimmer.startMeasurePhase[index] == true) {
ac_zero_cross_dimmer.currentPWMCycleCount[index] = ESP.getCycleCount();
ac_zero_cross_dimmer.startMeasurePhase[index] = false;
}
if (index == 3 && RtcSettings.pulse_counter[index]%(Settings->pwm_frequency / 5) == 0 && PinUsed(GPIO_CNTR1, index) && Settings->flag4.zerocross_dimmer && millis() > 10000) {
ac_zero_cross_dimmer.currentPWMCycleCount[index] = ESP.getCycleCount();
// 1000µs to ensure not to fire on the next sinus wave
if (ac_zero_cross_dimmer.lastCycleCount > 0) {
ac_zero_cross_dimmer.startReSync = true;
ac_zero_cross_dimmer.currentSteps = (ac_zero_cross_dimmer.currentCycleCount-ac_zero_cross_dimmer.lastCycleCount+(ac_zero_cross_dimmer.tobe_cycle_timeClockCycles/2))/(ac_zero_cross_dimmer.tobe_cycle_timeClockCycles);
ac_zero_cross_dimmer.current_cycle_ClockCycles = (ac_zero_cross_dimmer.currentCycleCount-ac_zero_cross_dimmer.lastCycleCount)/ac_zero_cross_dimmer.currentSteps;
for (uint8_t k=0; k < MAX_COUNTERS-1; k++ ) {
ac_zero_cross_dimmer.startMeasurePhase[k] = true;
}
ac_zero_cross_dimmer.lastCycleCount = ac_zero_cross_dimmer.currentCycleCount;
ac_zero_cross_dimmer.currentSteps = (ac_zero_cross_dimmer.currentPWMCycleCount[index]-ac_zero_cross_dimmer.lastCycleCount+(ac_zero_cross_dimmer.tobe_cycle_timeClockCycles/2))/(ac_zero_cross_dimmer.tobe_cycle_timeClockCycles);
ac_zero_cross_dimmer.current_cycle_ClockCycles = (ac_zero_cross_dimmer.currentPWMCycleCount[index]-ac_zero_cross_dimmer.lastCycleCount)/ac_zero_cross_dimmer.currentSteps-20;
}
ac_zero_cross_dimmer.lastCycleCount = ac_zero_cross_dimmer.currentPWMCycleCount[index];
}
#endif //USE_AC_ZERO_CROSS_DIMMER
return;
}
@ -117,7 +127,8 @@ void IRAM_ATTR CounterIsrArg(void *arg) {
/********************************************************************************************/
void CounterInterruptDisable(bool state) {
void CounterInterruptDisable(bool state)
{
if (state) { // Disable interrupts
if (Counter.any_counter) {
for (uint32_t i = 0; i < MAX_COUNTERS; i++) {
@ -149,7 +160,11 @@ void CounterInit(void)
for (uint32_t i = 0; i < MAX_COUNTERS; i++) {
if (PinUsed(GPIO_CNTR1, i)) {
#ifdef USE_AC_ZERO_CROSS_DIMMER
ac_zero_cross_dimmer.tobe_cycle_timeClockCycles = microsecondsToClockCycles(1000000 / Settings->pwm_frequency);
ac_zero_cross_dimmer.current_cycle_ClockCycles = ac_zero_cross_dimmer.tobe_cycle_timeClockCycles = microsecondsToClockCycles(1000000 / Settings->pwm_frequency);
// short fire on PWM to ensure not to hit next sinus curve but trigger the TRIAC. 0.78% of duty cycle (10ms) ~4µs
ac_zero_cross_dimmer.high = ac_zero_cross_dimmer.current_cycle_ClockCycles / 256;
#endif //USE_AC_ZERO_CROSS_DIMMER
Counter.any_counter = true;
pinMode(Pin(GPIO_CNTR1, i), bitRead(Counter.no_pullup, i) ? INPUT : INPUT_PULLUP);
@ -234,35 +249,57 @@ void SyncACDimmer(void)
{
if (ac_zero_cross_dimmer.startReSync ) {
// currently only support one AC Dimmer PWM. Plan to support up to 4 Dimmer on same Phase.
for (uint32_t i = 0; i < 1; i++) {
if (PinUsed(GPIO_PWM1, i) && PinUsed(GPIO_CNTR1, i))
for (uint32_t i = 0; i < MAX_COUNTERS-1; i++) {
if (PinUsed(GPIO_PWM1, i) && PinUsed(GPIO_CNTR1, i) && (ac_zero_cross_dimmer.startMeasurePhase[i] == 0 || ac_zero_cross_dimmer.PWM_ON[i] == 0) )
{
// get current time because undefined through FUNC_LOOP process.
const uint32_t current_cycle = ESP.getCycleCount();
digitalWrite(Pin(GPIO_PWM1, i), LOW);
uint32_t phaseStart_ActualClockCycles; // As-Is positon of PWM after Zero Cross
uint32_t phaseStart_ToBeClockCycles; // To be position after zero-cross to fire PWM start
int16_t phaseShift_ClockCycles; //
// reset trigger for PWM sync
ac_zero_cross_dimmer.startReSync = false;
// calculate timeoffset to fire PWM
// calculate timeoffset to fire PWM based on Dimmer
phaseStart_ToBeClockCycles = (ac_zero_cross_dimmer.tobe_cycle_timeClockCycles * (1024 - (Light.fade_running ? Light.fade_cur_10[i] : Light.fade_start_10[i]))) / 1024;
ac_zero_cross_dimmer.dimm_timeClockCycles = (ac_zero_cross_dimmer.tobe_cycle_timeClockCycles * (1024 - (Light.fade_running ? Light.fade_cur_10[i] : Light.fade_start_10[i]))) / 1024;
ac_zero_cross_dimmer.dimm_timeClockCycles = tmax(ac_zero_cross_dimmer.dimm_timeClockCycles, 16000);
// because in LOOP calculate the timelag to fire PWM correctly with zero-cross
uint32_t timelag_ClockCycles = (current_cycle - ac_zero_cross_dimmer.currentCycleCount)%ac_zero_cross_dimmer.tobe_cycle_timeClockCycles;
timelag_ClockCycles = ((ac_zero_cross_dimmer.dimm_timeClockCycles + ac_zero_cross_dimmer.tobe_cycle_timeClockCycles) - timelag_ClockCycles)%ac_zero_cross_dimmer.tobe_cycle_timeClockCycles;
delayMicroseconds(clockCyclesToMicroseconds(timelag_ClockCycles));
// Limit range to avoid overshoot and undershoot
phaseStart_ToBeClockCycles = tmin(tmax(phaseStart_ToBeClockCycles, 160000), 0.95* ac_zero_cross_dimmer.tobe_cycle_timeClockCycles);
// Switch OFF dimmer
if (Light.fade_start_10[i] == 0 && !Light.fade_running) {
ac_zero_cross_dimmer.PWM_ON[i]=false;
digitalWrite(Pin(GPIO_PWM1, i), LOW);
return;
}
// Calculyte clockcycles between zero-cross [3] and start of the current PWM signal [i]
phaseStart_ActualClockCycles = ac_zero_cross_dimmer.currentPWMCycleCount[i]-ac_zero_cross_dimmer.currentPWMCycleCount[3];
// Calulate additional or less clockcycles to move current phase position to should be position
phaseShift_ClockCycles = (int32_t)((int32_t)phaseStart_ToBeClockCycles-(int32_t)phaseStart_ActualClockCycles)/100;
#ifdef ESP8266
if ( ac_zero_cross_dimmer.PWM_ON[i] == 0 ) {
// because in LOOP calculate the timelag to fire PWM correctly with zero-cross
uint32_t timelag_ClockCycles = (ESP.getCycleCount() - ac_zero_cross_dimmer.currentPWMCycleCount[3])%ac_zero_cross_dimmer.tobe_cycle_timeClockCycles;
timelag_ClockCycles = ((phaseStart_ToBeClockCycles + ac_zero_cross_dimmer.tobe_cycle_timeClockCycles) - timelag_ClockCycles)%ac_zero_cross_dimmer.tobe_cycle_timeClockCycles;
delayMicroseconds(clockCyclesToMicroseconds(timelag_ClockCycles));
ac_zero_cross_dimmer.PWM_ON[i]=true;
pinMode(Pin(GPIO_PWM1, i), OUTPUT);
// short fire to ensure not to hit next sinus curve. 0.78% of duty cycle (10ms) ~4µs
uint32_t high = ac_zero_cross_dimmer.current_cycle_ClockCycles / 256;
uint32_t low = ac_zero_cross_dimmer.current_cycle_ClockCycles - high;
} else {
ac_zero_cross_dimmer.current_cycle_ClockCycles += phaseShift_ClockCycles;
}
// Find the first GPIO being generated by checking GCC's find-first-set (returns 1 + the bit of the first 1 in an int32_t
startWaveformClockCycles(Pin(GPIO_PWM1, i), high, low, 0, -1, 0, true);
startWaveformClockCycles(Pin(GPIO_PWM1, i), ac_zero_cross_dimmer.high, ac_zero_cross_dimmer.current_cycle_ClockCycles - ac_zero_cross_dimmer.high, 0, -1, 0, true);
#endif // ESP8266
#ifdef ESP32
analogWrite(Pin(GPIO_PWM1, i), 5);
#endif // ESP32
//AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("CNT: [%d] dimm_time_CCs %d, current_cycle_CC: %d, timelag %lu, lastcc %lu, currentSteps %d, curr %d"), i, ac_zero_cross_dimmer.dimm_timeClockCycles,ac_zero_cross_dimmer.current_cycle_ClockCycles , timelag_ClockCycles, ac_zero_cross_dimmer.currentCycleCount, ac_zero_cross_dimmer.currentSteps, Light.fade_cur_10[i]);
AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("CNT: [%d], dimmer %d, fade %d, fade_curr: %d, dimm_time_CCs %d, phaseShift_ClockCycles %d, currentPWMcylce: %lu, current_cycle_CC: %lu, lastcc %lu, currentSteps %lu, currDIM %lu, last delta:%lu"),
i, Light.fade_start_10[i], Light.fade_running, Light.fade_cur_10[i], phaseStart_ToBeClockCycles,phaseShift_ClockCycles,ac_zero_cross_dimmer.currentPWMCycleCount[i],ac_zero_cross_dimmer.current_cycle_ClockCycles , ac_zero_cross_dimmer.lastCycleCount, ac_zero_cross_dimmer.currentSteps, Light.fade_cur_10[i],phaseStart_ActualClockCycles);
}
}
}