stm32等效采样代码cubemx
时间: 2023-07-09 15:23:55 浏览: 199
以下是通过CubeMX配置的基于STM32的等效采样代码示例:
1. 配置ADC模块
- 打开CubeMX,选择你的MCU型号
- 在“Pinout”选项卡中,将要使用的ADC引脚分配给ADC功能
- 在“Configuration”选项卡中,启用ADC模块并配置时钟,采样时间等参数
2. 生成代码
- 点击“Generate Code”生成HAL库代码
3. 初始化ADC
在main.c文件中,可以使用以下代码初始化ADC:
```
/* ADC handle structure */
ADC_HandleTypeDef hadc;
/* ADC init function */
static void MX_ADC_Init(void)
{
/* Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */
hadc.Instance = ADC1;
hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
hadc.Init.Resolution = ADC_RESOLUTION_12B;
hadc.Init.ScanConvMode = DISABLE;
hadc.Init.ContinuousConvMode = ENABLE;
hadc.Init.DiscontinuousConvMode = DISABLE;
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();
}
/* Configure the ADC channel */
ADC_ChannelConfTypeDef sConfig;
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
{
Error_Handler();
}
}
```
4. 启动ADC采样
```
uint32_t adc_value;
/* Start ADC conversion */
HAL_ADC_Start(&hadc);
/* Wait for the conversion to complete */
HAL_ADC_PollForConversion(&hadc, 100);
/* Get ADC converted value */
adc_value = HAL_ADC_GetValue(&hadc);
```
以上代码将启动ADC采样,并等待采样完成。一旦采样完成,将使用HAL_ADC_GetValue函数获取采样到的值。
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