Merge pull request #9076 from stefanbode/patch-16

AC-Zero-Cross Dimmer Enhancements
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Theo Arends 2020-08-12 09:35:45 +02:00 committed by GitHub
commit 6394414d4e
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1 changed files with 72 additions and 28 deletions

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@ -24,6 +24,8 @@
#define XSNS_01 1 #define XSNS_01 1
#define USE_AC_ZERO_CROSS_DIMMER 1
#define D_PRFX_COUNTER "Counter" #define D_PRFX_COUNTER "Counter"
#define D_CMND_COUNTERTYPE "Type" #define D_CMND_COUNTERTYPE "Type"
#define D_CMND_COUNTERDEBOUNCE "Debounce" #define D_CMND_COUNTERDEBOUNCE "Debounce"
@ -44,10 +46,20 @@ struct COUNTER {
uint8_t no_pullup = 0; // Counter input pullup flag (1 = No pullup) uint8_t no_pullup = 0; // Counter input pullup flag (1 = No pullup)
uint8_t pin_state = 0; // LSB0..3 Last state of counter pin; LSB7==0 IRQ is FALLING, LSB7==1 IRQ is CHANGE uint8_t pin_state = 0; // LSB0..3 Last state of counter pin; LSB7==0 IRQ is FALLING, LSB7==1 IRQ is CHANGE
bool any_counter = false; bool any_counter = false;
} Counter; } Counter;
uint32_t last_cycle; #ifdef USE_AC_ZERO_CROSS_DIMMER
uint32_t cycle_time; struct AC_ZERO_CROSS_DIMMER {
bool startReSync = false;
uint32_t current_cycle_ClockCycles = 0;
uint32_t dimm_timeClockCycles = 0;
uint32_t currentCycleCount = 0;
uint32_t tobe_cycle_timeClockCycles = 0;
uint32_t lastCycleCount = 0;
uint32_t currentSteps = 100;
} ac_zero_cross_dimmer;
#endif
void ICACHE_RAM_ATTR CounterIsrArg(void *arg) { void ICACHE_RAM_ATTR CounterIsrArg(void *arg) {
uint32_t index = *static_cast<uint8_t*>(arg); uint32_t index = *static_cast<uint8_t*>(arg);
@ -76,35 +88,20 @@ void ICACHE_RAM_ATTR CounterIsrArg(void *arg) {
if bitRead(Counter.pin_state, index) { if bitRead(Counter.pin_state, index) {
// PWMfrequency 100 // PWMfrequency 100
// restart PWM each second (german 50Hz has to up to 0.01% deviation) // restart PWM each second (german 50Hz has to up to 0.01% deviation)
// Zero-HIGH is typical 2ms // restart initiated by setting Counter.startReSync = true;
if (RtcSettings.pulse_counter[index]%100 == 0 && PinUsed(GPIO_PWM1, index) && Settings.flag4.zerocross_dimmer) { #ifdef USE_AC_ZERO_CROSS_DIMMER
const uint32_t current_cycle = ESP.getCycleCount(); if (RtcSettings.pulse_counter[index]%(Settings.pwm_frequency / (Light.fade_running ? 10:1))== 0 && PinUsed(GPIO_PWM1, index) && Settings.flag4.zerocross_dimmer) {
// stop pwm on PIN to start in Sync with rising edge ac_zero_cross_dimmer.currentCycleCount = ESP.getCycleCount();
// calculate timeoffset to fire PWM
uint16_t cur_col = Light.fade_start_10[0 + Light.pwm_offset];
uint32_t dimm_time= 1000000 / Settings.pwm_frequency * (1024 - cur_col) / 1024;
digitalWrite(Pin(GPIO_PWM1, index), LOW);
// 1000µs to ensure not to fire on the next sinus wave // 1000µs to ensure not to fire on the next sinus wave
if (dimm_time < (1000000 / Settings.pwm_frequency)-1000) { if (ac_zero_cross_dimmer.lastCycleCount>0) {
delayMicroseconds(dimm_time); ac_zero_cross_dimmer.startReSync = true;
// fire small PWM signal to start TRIAC/SSR. Kill on next 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);
// zero phase automatic. ac_zero_cross_dimmer.current_cycle_ClockCycles = (ac_zero_cross_dimmer.currentCycleCount-ac_zero_cross_dimmer.lastCycleCount)/ac_zero_cross_dimmer.currentSteps;
// calculate actual cycle time and adapt frequency im milli Hz steps
// add 100.000 cpu ticks to ensure right step calculation
uint32_t steps = (current_cycle-last_cycle+100000)/(clockCyclesPerMicrosecond() * 10000);
cycle_time = (current_cycle-last_cycle)/steps;
#ifdef ESP8266
pinMode(Pin(GPIO_PWM1, index), OUTPUT);
uint32_t high = (cycle_time * 5) / 1023;
uint32_t low = cycle_time - high;
// 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, index), high, low, 0, -1, 0, true);
#else // ESP32
analogWrite(Pin(GPIO_PWM1, index), 5);
#endif // ESP8266 - ESP32
} }
last_cycle = current_cycle; ac_zero_cross_dimmer.lastCycleCount = ac_zero_cross_dimmer.currentCycleCount;
} }
#endif
return; return;
} }
} }
@ -153,6 +150,9 @@ void CounterInit(void)
{ {
for (uint32_t i = 0; i < MAX_COUNTERS; i++) { for (uint32_t i = 0; i < MAX_COUNTERS; i++) {
if (PinUsed(GPIO_CNTR1, i)) { if (PinUsed(GPIO_CNTR1, i)) {
#ifdef USE_AC_ZERO_CROSS_DIMMER
ac_zero_cross_dimmer.tobe_cycle_timeClockCycles = microsecondsToClockCycles(1000000 / Settings.pwm_frequency);
#endif
Counter.any_counter = true; Counter.any_counter = true;
pinMode(Pin(GPIO_CNTR1, i), bitRead(Counter.no_pullup, i) ? INPUT : INPUT_PULLUP); pinMode(Pin(GPIO_CNTR1, i), bitRead(Counter.no_pullup, i) ? INPUT : INPUT_PULLUP);
if ((0 == Settings.pulse_counter_debounce_low) && (0 == Settings.pulse_counter_debounce_high) && !Settings.flag4.zerocross_dimmer) { if ((0 == Settings.pulse_counter_debounce_low) && (0 == Settings.pulse_counter_debounce_high) && !Settings.flag4.zerocross_dimmer) {
@ -231,6 +231,45 @@ void CounterShow(bool json)
} }
} }
#ifdef USE_AC_ZERO_CROSS_DIMMER
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))
{
// get current time because undefined through FUNC_LOOP process.
const uint32_t current_cycle = ESP.getCycleCount();
digitalWrite(Pin(GPIO_PWM1, i), LOW);
// reset trigger for PWM sync
ac_zero_cross_dimmer.startReSync = false;
// calculate timeoffset to fire PWM
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));
#ifdef ESP8266
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;
// 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);
#else // ESP32
analogWrite(Pin(GPIO_PWM1, i), 5);
#endif // ESP8266 - ESP32
//AddLog_P2(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]);
}
}
}
}
#endif
/*********************************************************************************************\ /*********************************************************************************************\
* Commands * Commands
\*********************************************************************************************/ \*********************************************************************************************/
@ -305,6 +344,11 @@ bool Xsns01(uint8_t function)
case FUNC_JSON_APPEND: case FUNC_JSON_APPEND:
CounterShow(1); CounterShow(1);
break; break;
#ifdef USE_AC_ZERO_CROSS_DIMMER
case FUNC_LOOP:
SyncACDimmer();
break;
#endif
#ifdef USE_WEBSERVER #ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR: case FUNC_WEB_SENSOR:
CounterShow(0); CounterShow(0);