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ADC Measurment: Introduce ADC_PT1000_WATCHDOG_SAMPLE_COUNT in order to filter out false Watchdog errors produces by EMI problems"

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This commit is contained in:
Mario Hüttel
2020-04-26 18:09:39 +02:00
parent b9a38549dc
commit ffe195d7b2
2 changed files with 14 additions and 1 deletions
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9
stm-firmware/adc-meas.c
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@@ -322,6 +322,7 @@ static inline __attribute__((optimize("O3"))) float adc_pt1000_dma_avg_pre_filte
void ADC_IRQHandler(void)
{
uint32_t adc1_sr;
static uint32_t watchdog_errors;
adc1_sr = ADC1->SR;
@@ -330,11 +331,17 @@ void ADC_IRQHandler(void)
pt1000_error |= ADC_PT1000_OVERFLOW;
/* Disable ADC in case of overrrun*/
adc_pt1000_disable();
if (!(adc1_sr & ADC_SR_AWD)) {
watchdog_errors = 0;
}
}
if (adc1_sr & ADC_SR_AWD) {
ADC1->SR &= ~ADC_SR_AWD;
pt1000_error |= ADC_PT1000_WATCHDOG_ERROR;
watchdog_errors++;
if (watchdog_errors >= ADC_PT1000_WATCHDOG_SAMPLE_COUNT)
pt1000_error |= ADC_PT1000_WATCHDOG_ERROR;
}
}