Posted on April 11, 2018 at 00:18Hi everybody, Our application measure VBAT voltage using ADC1 regular ADC_CHANNEL_14. In fact, the ADC Bat. Measurement work fine on the STM32F105 but not on the STM32F411. Below our configuration for ADC 'STM32F411': Results on the USART terminal:Hi everybody, Our application measure VBAT voltage using ADC1 regular ADC_CHANNEL_14. In fact, the ADC Bat. Measurement work fine on the STM32F105 but not on the STM32F411. Below our configuration for ADC 'STM32F411': Results on the USART terminal:Hi everybody, Our application measure VBAT voltage using ADC1 regular ADC_CHANNEL_14. In fact, the ADC Bat. Measurement work fine on the STM32F105 but not on the STM32F411. Below our configuration for ADC 'STM32F411': Results on the USART terminal:Hi everybody, Our application measure VBAT voltage using ADC1 regular ADC_CHANNEL_14. In fact, the ADC Bat. Measurement work fine on the STM32F105 but not on the STM32F411. Below our configuration for ADC 'STM32F411': Results on the USART terminal:Hi everybody, Our application measure VBAT voltage using ADC1 regular ADC_CHANNEL_14. In fact, the ADC Bat. Measurement work fine on the STM32F105 but not on the STM32F411. Below our configuration for ADC 'STM32F411': Results on the USART terminal:
void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig;
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = DISABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.DiscontinuousConvMode = ENABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
/* ADC initialization error */
dlog(DDEBUG, 'Error on adc init\n');
return;
}
sConfig.Channel = ADC_CHANNEL_14;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_84CYCLES/*ADC_SAMPLETIME_28CYCLES
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
dlog(DDEBUG, 'Error on adc channel config\n');
}
sConfig.Channel = ADC_CHANNEL_VREFINT;
sConfig.Rank = 2;
sConfig.SamplingTime = ADC_SAMPLETIME_84CYCLES;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
dlog(DDEBUG, 'Error on adc channel config\n');
}
if (HAL_ADC_Start_DMA(&hadc1,
(uint32_t *)aADCxConvertedValues,
ADCCONVERTEDVALUES_BUFFER_SIZE
) != HAL_OK)
{
dlog(DDEBUG, 'Error on ADC DMA start\n');
}
MX_ADC1_GetValue();
}
Hi everybody, Our application measure VBAT voltage using ADC1 regular ADC_CHANNEL_14. In fact, the ADC Bat. Measurement work fine on the STM32F105 but not on the STM32F411. Below our configuration for ADC 'STM32F411': Results on the USART terminal:[ADC] Before: 0, Converted 0: 0
[ADC] Before: 0, Converted 1: 0
[ADC] u32ConvertedVal: 0
