How to stop ADC continuous from ISR function?

Projects Programming
1

Hi,
I'm looking for a way to stop the ADC continuous mode from ISR function. this is what i'm trying to do:

bool bAdcResultReady_flag = false;

void ARDUINO_ISR_ATTR vAdc_continous_complete_isr_fn(){
  // stop ADC continous until the next cycle
  analogContinuousStop();
  bAdcResultReady_flag = true;
}

void setup() {
  // Serial port config
  Serial.begin(115200);

  // ADC configuration
  analogContinuousSetWidth(12);
  analogContinuousSetAtten(ADC_11db);
  uint8_t pu8AdcPins[] = {34};
  analogContinuous(pu8AdcPins, xNbrAdcPins, 10, 20000, &vAdc_continous_complete_isr_fn);
  delay(2000);
  analogContinuousStart();
}

void loop() {
  if(bAdcResultReady_flag){
    bAdcResultReady_flag = false;
    Serial.println("ADC complited");
    // start it again for new cycle
    analogContinuousStart();
    delay(5000);
  }
}

when i upload this program, my ESP32 keep restarting every 2 seconds, and i get this error msg:

assert failed: xQueueGiveFromISR queue.c:1311 (!( ( pxQueue->pcHead == ((void *)0) ) && ( pxQueue->u.xSemaphore.xMutexHolder != ((void *)0) ) ))

Backtrace: 0x4008207d:0x3ffbf06c |<-CORRUPTED

i don't know why i can't run "analogContinuousStop();" from ISR function, if someone can explaint it to me, and what is the alternative for that. since analogContinuousStop(); is the only way to stop ADC DMA (or ADC continuous).

Thank you

2

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.