I cheated and did it all in the sketch :)
renamend to myMicros()...&.....microsMux2...to avoid conflicts.

....hopefully not a problem. Result: FAIL, same as before :(

volatile long dutyCycle_Thr = 0;
volatile long startTime_Thr = 0;
volatile long lastTime = 0;

portMUX_TYPE microsMux2 = portMUX_INITIALIZER_UNLOCKED;

static unsigned long IRAM_ATTR _micros(){
    static unsigned long lccount = 0;
    static unsigned long overflow = 0;
    unsigned long ccount;
    __asm__ __volatile__ ( "rsr     %0, ccount" : "=a" (ccount) );
    if(ccount < lccount){
        overflow += UINT32_MAX / CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ;
    }
    lccount = ccount;
    return overflow + (ccount / CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ);
}

unsigned long IRAM_ATTR myMicros()
{
    unsigned long res;
    portENTER_CRITICAL_ISR(&microsMux2);
    res = _micros();
    portEXIT_CRITICAL_ISR(&microsMux2);
    return res;
}

void setup() {
  Serial.begin(115200);
  pinMode(18, INPUT);
  attachInterrupt(18, isrTHR, CHANGE);
  //  attachInterrupt(18, isrTHR, FALLING);
  // attachInterrupt(18, isrTHR, RISING);
}

void loop() {
  uint32_t usLoop = myMicros();
  if (usLoop - lastTime > 200000) { //check if time gap too large
    Serial.println("Boom! : ");
    Serial.println(usLoop - lastTime);
    while (1); //hang here once issue detected
  }
  if (usLoop - lastTime > 100000)
  {
    Serial.println(myMicros());
    lastTime = myMicros();
  }
}

void isrTHR(){
  if (digitalRead(18) == HIGH) {
    startTime_Thr = myMicros();
  }
  else {
    dutyCycle_Thr =  myMicros() - startTime_Thr;
  }
}

Description

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions