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stm32/adc: Increase ADC sampling time for internal sources on H7 MCUs.

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This commit is contained in:
Damien George 2018-12-12 12:51:26 +11:00
parent 0555ada277
commit 6cab8daee0
1 changed files with 7 additions and 1 deletions
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8
ports/stm32/adc.c
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@ -306,7 +306,13 @@ STATIC void adc_config_channel(ADC_HandleTypeDef *adc_handle, uint32_t channel)
#elif defined(STM32F4) || defined(STM32F7)
sConfig.SamplingTime = ADC_SAMPLETIME_15CYCLES;
#elif defined(STM32H7)
sConfig.SamplingTime = ADC_SAMPLETIME_8CYCLES_5;
if (channel == ADC_CHANNEL_VREFINT
|| channel == ADC_CHANNEL_TEMPSENSOR
|| channel == ADC_CHANNEL_VBAT) {
sConfig.SamplingTime = ADC_SAMPLETIME_387CYCLES_5;
} else {
sConfig.SamplingTime = ADC_SAMPLETIME_8CYCLES_5;
}
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.OffsetRightShift = DISABLE;