N32G032K8L7ADC连续转换示例
时间: 2023-07-25 12:07:49 浏览: 42
以下是N32G032K8L7ADC连续转换的示例代码:
```c
#include "n32g032.h"
#define ADC_CHANNEL_NUM 3
uint16_t ADC_ConvertedValue[ADC_CHANNEL_NUM];
void ADC_ContinousConversion(void)
{
ADC_InitTypeDef ADC_InitStruct = {0};
ADC_ChannelConfTypeDef sConfig = {0};
// 使能ADC时钟
__HAL_RCC_ADC1_CLK_ENABLE();
// 配置ADC参数
ADC_InitStruct.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
ADC_InitStruct.Resolution = ADC_RESOLUTION_12B;
ADC_InitStruct.DataAlign = ADC_DATAALIGN_RIGHT;
ADC_InitStruct.ContinuousConvMode = ENABLE;
ADC_InitStruct.DiscontinuousConvMode = DISABLE;
ADC_InitStruct.ExternalTrigConv = ADC_SOFTWARE_START;
ADC_InitStruct.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
ADC_InitStruct.DMAContinuousRequests = DISABLE;
ADC_InitStruct.EOCSelection = ADC_EOC_SINGLE_CONV;
HAL_ADC_Init(&hadc1, &ADC_InitStruct);
// 配置ADC通道
sConfig.Channel = ADC_CHANNEL_4;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;
HAL_ADC_ConfigChannel(&hadc1, &sConfig);
sConfig.Channel = ADC_CHANNEL_5;
sConfig.Rank = ADC_REGULAR_RANK_2;
HAL_ADC_ConfigChannel(&hadc1, &sConfig);
sConfig.Channel = ADC_CHANNEL_6;
sConfig.Rank = ADC_REGULAR_RANK_3;
HAL_ADC_ConfigChannel(&hadc1, &sConfig);
// 启动ADC连续转换
HAL_ADC_Start(&hadc1);
while (1)
{
// 等待转换完成
if (HAL_ADC_PollForConversion(&hadc1, 1000000) == HAL_OK)
{
// 获取ADC转换结果
for (int i = 0; i < ADC_CHANNEL_NUM; i++)
{
ADC_ConvertedValue[i] = HAL_ADC_GetValue(&hadc1);
}
}
}
}
```
在这个示例中,我们使用了3个ADC通道(ADC_CHANNEL_4, ADC_CHANNEL_5和ADC_CHANNEL_6)进行连续转换。在程序的主循环中,我们等待转换完成并获取转换结果,然后将结果存储在ADC_ConvertedValue数组中。可以根据需要修改ADC通道的数量和其他参数。