ADC 库函数中断 代码
时间: 2023-08-23 13:05:47 浏览: 38
以下是一个使用STM32的ADC库函数和中断的示例代码:
1. 配置ADC模块:
```
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable GPIO clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
/* Configure ADC1 Channel6 pin as analog input */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Enable ADC1 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* Configure ADC1 */
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
```
2. 配置中断:
```
NVIC_InitTypeDef NVIC_InitStructure;
/* Configure and enable ADC interrupt */
NVIC_InitStructure.NVIC_IRQChannel = ADC1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable ADC1 end of conversion interrupt */
ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);
```
3. 实现中断处理函数:
```
void ADC1_IRQHandler(void)
{
if (ADC_GetITStatus(ADC1, ADC_IT_EOC) != RESET)
{
/* Get ADC conversion result */
uint16_t adc_value = ADC_GetConversionValue(ADC1);
/* Do something with adc_value */
/* Clear ADC1 end of conversion interrupt */
ADC_ClearITPendingBit(ADC1, ADC_IT_EOC);
}
}
```