diff options
| -rw-r--r-- | bsp/stm32/libraries/HAL_Drivers/drv_adc.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_adc.c b/bsp/stm32/libraries/HAL_Drivers/drv_adc.c index 030002dbe2..82e4250a52 100644 --- a/bsp/stm32/libraries/HAL_Drivers/drv_adc.c +++ b/bsp/stm32/libraries/HAL_Drivers/drv_adc.c @@ -209,10 +209,12 @@ static rt_err_t stm32_get_adc_value(struct rt_adc_device *device, rt_uint32_t ch #elif defined(SOC_SERIES_STM32MP1) ADC_ChanConf.SamplingTime = ADC_SAMPLETIME_810CYCLES_5; #endif + #if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32L4) ADC_ChanConf.Offset = 0; #endif -#ifdef SOC_SERIES_STM32L4 + +#if defined(SOC_SERIES_STM32L4) ADC_ChanConf.OffsetNumber = ADC_OFFSET_NONE; ADC_ChanConf.SingleDiff = LL_ADC_SINGLE_ENDED; #elif defined(SOC_SERIES_STM32MP1) @@ -221,9 +223,17 @@ static rt_err_t stm32_get_adc_value(struct rt_adc_device *device, rt_uint32_t ch ADC_ChanConf.SingleDiff = ADC_SINGLE_ENDED; /* ADC channel differential mode */ #endif HAL_ADC_ConfigChannel(stm32_adc_handler, &ADC_ChanConf); -#ifdef SOC_SERIES_STM32MP1 - /* Run the ADC linear calibration in single-ended mode */ - if (HAL_ADCEx_Calibration_Start(stm32_adc_handler, ADC_CALIB_OFFSET_LINEARITY, ADC_SINGLE_ENDED) != HAL_OK) + + /* perform an automatic ADC calibration to improve the conversion accuracy */ +#if defined(SOC_SERIES_STM32L4) + if (HAL_ADCEx_Calibration_Start(stm32_adc_handler, ADC_ChanConf.SingleDiff) != HAL_OK) + { + LOG_E("ADC calibration error!\n"); + return -RT_ERROR; + } +#elif defined(SOC_SERIES_STM32MP1) + /* Run the ADC linear calibration in single-ended mode */ + if (HAL_ADCEx_Calibration_Start(stm32_adc_handler, ADC_CALIB_OFFSET_LINEARITY, ADC_ChanConf.SingleDiff) != HAL_OK) { LOG_E("ADC open linear calibration error!\n"); /* Calibration Error */ |