Solved
ADC conversion not work after wakeup from STOP2 mode
Hello,
My agenda is to work with ADC1 with STOP2 mode.
Using LPTIMER1 to wakeup system, from STOP2 mode and once wakeup then reinit adc, calibrate and start adc interrupt. but still I can see adc interrupt not called.
void handleConversion()
{
ReInit_ADC1();
HAL_ADCEx_Calibration_Start(&hadc_);
HAL_StatusTypeDef status = HAL_ADC_Start_IT(&hadc1);
if (status != HAL_OK) {
HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5);
}
// LED toggle if we put out of IF statement, so interrupt is register successfully.
} void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
{
__IO uint16_t adcRawValue = HAL_ADC_GetValue(hadc);
uint16_t adcVoltage_mVolt = __LL_ADC_CALC_DATA_TO_VOLTAGE(VDDA_APPLI, adcRawValue, LL_ADC_RESOLUTION_12B);
InternalBatteryDriver::setVoltageCallback(adcVoltage_mVolt);
// HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5);
scheduler_push_event(EVENT_ADC_CONVERSION_COMPLETE);
}
//Here as final result, trying to glow LED which is not blinkingand here is the ADC_Init code for reference
static void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig = {0};
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV4;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = ENABLE;
hadc1.Init.LowPowerAutoPowerOff = ENABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
hadc1.Init.SamplingTimeCommon1 = ADC_SAMPLETIME_79CYCLES_5;
hadc1.Init.SamplingTimeCommon2 = ADC_SAMPLETIME_79CYCLES_5;
hadc1.Init.OversamplingMode = DISABLE;
hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
sConfig.Channel = ADC_CHANNEL_4;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_1;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
}Help me if I'm missing anything here.
FYI, this works when we try to disable stop2 mode.
Here is the wakeup details,
void enterLowPowerMode()
{
HAL_UARTEx_EnableStopMode(&hlpuart1);
HAL_SuspendTick();
HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
HAL_ResumeTick();
Reset_SystemClock();
}void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE2);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
{
Error_Handler();
}
}Thanks,
Nitin
