uint32_t ADC_Detect(uint32_t AD_Channel){
hadc.Instance->CHSELR = 0;
ADC_ChannelConfTypeDef sConfig;
sConfig.Channel = AD_Channel;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
uint32_t ADC_result;
/*ADC START*/
if(HAL_ADC_Start(&hadc)!=HAL_OK)
{
while(1)
{
}
}
/*Wait for ADC completed*/
if (HAL_ADC_PollForConversion(&hadc, 10) != HAL_OK)
{
while(1)
{
}
}
else
{
/*Get the converted value of regular channel*/
ADC_result = HAL_ADC_GetValue(&hadc);
HAL_ADC_Stop(&hadc);
//ADC_result =((ADC_result*3300)>>8);
return ADC_result;
}
}
The ADC produced by CUBE cannot be configured with multi-channel sampling, and the multi-channel sampling acquisition value is incorrect. After research, it was found that the underlying function did not clear the CHANNEL.
Just add hadc.Instance->CHSELR = 0; in the function to manually clear the register.
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