写一个基于HAL stm32的模拟电压 ADC采集函数
时间: 2023-04-04 13:00:27 浏览: 85
好的,我可以回答这个问题。以下是一个基于HAL stm32的模拟电压ADC采集函数的示例代码:
```
ADC_HandleTypeDef hadc;
void ADC_Init(void)
{
ADC_ChannelConfTypeDef sConfig = {};
hadc.Instance = ADC1;
hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
hadc.Init.Resolution = ADC_RESOLUTION_12B;
hadc.Init.ScanConvMode = DISABLE;
hadc.Init.ContinuousConvMode = DISABLE;
hadc.Init.DiscontinuousConvMode = DISABLE;
hadc.Init.NbrOfDiscConversion = ;
hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc.Init.NbrOfConversion = 1;
hadc.Init.DMAContinuousRequests = DISABLE;
hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
if (HAL_ADC_Init(&hadc) != HAL_OK)
{
Error_Handler();
}
sConfig.Channel = ADC_CHANNEL_;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
sConfig.Offset = ;
if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
{
Error_Handler();
}
}
uint16_t ADC_Read(void)
{
uint16_t adc_value = ;
if (HAL_ADC_Start(&hadc) != HAL_OK)
{
Error_Handler();
}
if (HAL_ADC_PollForConversion(&hadc, 100) != HAL_OK)
{
Error_Handler();
}
adc_value = HAL_ADC_GetValue(&hadc);
return adc_value;
}
```
这个函数初始化了ADC,并且读取了模拟电压的值。你可以根据需要修改ADC的通道和采样时间。