diff options
Diffstat (limited to 'ports/stm32/adc.c')
| -rw-r--r-- | ports/stm32/adc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/ports/stm32/adc.c b/ports/stm32/adc.c index 07368f473..c912d9df3 100644 --- a/ports/stm32/adc.c +++ b/ports/stm32/adc.c @@ -314,6 +314,11 @@ static void adcx_clock_enable(ADC_HandleTypeDef *adch) { static void adcx_init_periph(ADC_HandleTypeDef *adch, uint32_t resolution) { adcx_clock_enable(adch); + // Set ADC clock prescaler, if it's not done by HAL_ADC_Init() below. + #if defined(STM32N6) + LL_RCC_SetADCPrescaler(4 - 1); // 200MHz / 4 = 50MHz + #endif + adch->Init.Resolution = resolution; adch->Init.ContinuousConvMode = DISABLE; adch->Init.DiscontinuousConvMode = DISABLE; @@ -387,7 +392,7 @@ static void adcx_init_periph(ADC_HandleTypeDef *adch, uint32_t resolution) { #endif #if defined(STM32G0) HAL_ADCEx_Calibration_Start(adch); - #elif defined(STM32G4) || defined(STM32H5) || defined(STM32L4) || defined(STM32WB) + #elif defined(STM32G4) || defined(STM32H5) || defined(STM32L4) || defined(STM32N6) || defined(STM32WB) HAL_ADCEx_Calibration_Start(adch, ADC_SINGLE_ENDED); #endif } @@ -461,7 +466,7 @@ static void adc_config_channel(ADC_HandleTypeDef *adc_handle, uint32_t channel) if (__HAL_ADC_IS_CHANNEL_INTERNAL(channel)) { sConfig.SamplingTime = ADC_SAMPLETIME_246CYCLES_5; } else { - sConfig.SamplingTime = ADC_SAMPLETIME_11CYCLES_5; + sConfig.SamplingTime = ADC_SAMPLETIME_46CYCLES_5; } sConfig.SingleDiff = ADC_SINGLE_ENDED; sConfig.OffsetNumber = ADC_OFFSET_NONE; |