编写驱动STM32内部ADC和DAC模块的代码。
时间: 2024-03-23 19:41:09 浏览: 28
好的,我可以为您提供一些参考代码。以下是基于STM32CubeMX生成的代码,可用于配置和驱动STM32内部ADC和DAC模块:
ADC配置和初始化代码:
```c
/* ADC1 initialization function */
void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig = {0};
/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/** Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time. */
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
}
```
DAC配置和初始化代码:
```c
/* DAC1 initialization function */
void MX_DAC1_Init(void)
{
DAC_ChannelConfTypeDef sConfig = {0};
/** DAC Initialization */
hdac.Instance = DAC1;
if (HAL_DAC_Init(&hdac) != HAL_OK)
{
Error_Handler();
}
/** DAC channel OUT1 config */
sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
if (HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
}
```
ADC读取代码:
```c
/* Read ADC value */
uint32_t read_adc_value(void)
{
uint32_t adc_value = 0;
/* Start ADC conversion */
if (HAL_ADC_Start(&hadc1) != HAL_OK)
{
Error_Handler();
}
/* Wait for ADC conversion completion */
if (HAL_ADC_PollForConversion(&hadc1, 100) != HAL_OK)
{
Error_Handler();
}
/* Read ADC converted value */
adc_value = HAL_ADC_GetValue(&hadc1);
return adc_value;
}
```
DAC输出代码:
```c
/* Set DAC output value */
void set_dac_output(uint32_t dac_value)
{
/* Set DAC output value */
if (HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_12B_R, dac_value) != HAL_OK)
{
Error_Handler();
}
/* Trigger DAC conversion */
if (HAL_DAC_Start(&hdac, DAC_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
}
```
请注意,这只是一些基本的代码示例,您可能需要根据您的具体需求进行修改和优化。