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发表于 2025-3-14 14:53:38
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请问解决了没？我遇到了一个问题是：我的逻辑是外部一个1khz的方波触发ADC采集。就是每次上电之后就触发一次，就不继续采集了。不知道是什么问题？
这是ADC的配置
void MX_ADC1_Init(void)
{
/* USER CODE BEGIN ADC1_Init 0 */
/* USER CODE END ADC1_Init 0 */
ADC_MultiModeTypeDef multimode = {0};
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC1_Init 1 */
/* USER CODE END ADC1_Init 1 */
/** Common config
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
hadc1.Init.Resolution = ADC_RESOLUTION_16B;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DMA_ONESHOT;
hadc1.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
hadc1.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
hadc1.Init.OversamplingMode = DISABLE;
hadc1.Init.Oversampling.Ratio = 1;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/** Configure the ADC multi-mode
*/
multimode.Mode = ADC_DUALMODE_INTERL;
multimode.DualModeData = ADC_DUALMODEDATAFORMAT_32_10_BITS;
multimode.TwoSamplingDelay = ADC_TWOSAMPLINGDELAY_3CYCLES;
if (HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_10;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
sConfig.OffsetSignedSaturation = DISABLE;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC1_Init 2 */
/* USER CODE END ADC1_Init 2 */
}
这是ADC2的配置
void MX_ADC2_Init(void)
{
/* USER CODE BEGIN ADC2_Init 0 */
/* USER CODE END ADC2_Init 0 */
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC2_Init 1 */
/* USER CODE END ADC2_Init 1 */
/** Common config
*/
hadc2.Instance = ADC2;
hadc2.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
hadc2.Init.Resolution = ADC_RESOLUTION_16B;
hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc2.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc2.Init.LowPowerAutoWait = DISABLE;
hadc2.Init.ContinuousConvMode = ENABLE;
hadc2.Init.NbrOfConversion = 1;
hadc2.Init.DiscontinuousConvMode = DISABLE;
hadc2.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
hadc2.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
hadc2.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
hadc2.Init.OversamplingMode = DISABLE;
hadc2.Init.Oversampling.Ratio = 1;
if (HAL_ADC_Init(&hadc2) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_10;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
sConfig.OffsetSignedSaturation = DISABLE;
if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC2_Init 2 */
/* USER CODE END ADC2_Init 2 */
}
DMA的配置
void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(adcHandle->Instance==ADC1)
{
/* USER CODE BEGIN ADC1_MspInit 0 */
/* USER CODE END ADC1_MspInit 0 */
/* ADC1 clock enable */
HAL_RCC_ADC12_CLK_ENABLED++;
if(HAL_RCC_ADC12_CLK_ENABLED==1){
__HAL_RCC_ADC12_CLK_ENABLE();
}
__HAL_RCC_GPIOC_CLK_ENABLE();
/**ADC1 GPIO Configuration
PC0 ------> ADC1_INP10
*/
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* ADC1 DMA Init */
/* ADC1 Init */
hdma_adc1.Instance = DMA1_Stream0;
hdma_adc1.Init.Request = DMA_REQUEST_ADC1;
hdma_adc1.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_adc1.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_adc1.Init.MemInc = DMA_MINC_ENABLE;
hdma_adc1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
hdma_adc1.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_adc1.Init.Mode = DMA_NORMAL;
hdma_adc1.Init.Priority = DMA_PRIORITY_LOW;
hdma_adc1.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
if (HAL_DMA_Init(&hdma_adc1) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(adcHandle,DMA_Handle,hdma_adc1);
/* ADC1 interrupt Init */
HAL_NVIC_SetPriority(ADC_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(ADC_IRQn);
/* USER CODE BEGIN ADC1_MspInit 1 */
/* USER CODE END ADC1_MspInit 1 */
}
else if(adcHandle->Instance==ADC2)
{
/* USER CODE BEGIN ADC2_MspInit 0 */
/* USER CODE END ADC2_MspInit 0 */
/* ADC2 clock enable */
HAL_RCC_ADC12_CLK_ENABLED++;
if(HAL_RCC_ADC12_CLK_ENABLED==1){
__HAL_RCC_ADC12_CLK_ENABLE();
}
__HAL_RCC_GPIOC_CLK_ENABLE();
/**ADC2 GPIO Configuration
PC0 ------> ADC2_INP10
*/
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* ADC2 interrupt Init */
HAL_NVIC_SetPriority(ADC_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(ADC_IRQn);
/* USER CODE BEGIN ADC2_MspInit 1 */
/* USER CODE END ADC2_MspInit 1 */
}
}
然后这是我的逻辑：
#define ADC_DATA_LENGTH 256
uint32_t ADC_BUFFER[ADC_DATA_LENGTH]; // DMA缓冲区
uint16_t adc1_data[ADC_DATA_LENGTH];
uint16_t adc2_data[ADC_DATA_LENGTH];
volatile uint8_t g_adc3_dma_start_flag = 0;
volatile uint8_t g_adc3_dma_complete_flag = 0; // 数据准备标志位
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) // 处理GPIO_PIN_1的中断事件
{
if (GPIO_Pin == GPIO_PIN_1)
{
g_adc3_dma_start_flag = 1; // 设置采集完成标志位，开始采集
}
}
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
{
// SCB_InvalidateDCache_by_Addr((uint32_t *) ADC_BUFFER, sizeof(ADC_BUFFER);
HAL_ADC_Stop(&hadc2);
HAL_ADC_Stop_DMA(&hadc1);
g_adc3_dma_complete_flag = 1; // 设置DMA传输完成标志位
}
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
if(g_adc3_dma_start_flag == 1){
HAL_ADC_Start(&hadc2);
HAL_ADCEx_MultiModeStart_DMA(&hadc1, (uint32_t* )ADC_BUFFER, ADC_DATA_LENGTH);
if(g_adc3_dma_complete_flag == 1){
// 处理数据
for (int i = 0; i < ADC_DATA_LENGTH; i++)
{
uint16_t adc1_data = ADC_BUFFER & 0xFFFF; // 提取主ADC数据（低16位）
uint16_t adc2_data = (ADC_BUFFER >> 16) & 0xFFFF; // 提取从ADC数据（高16位）
// 交替打印低16位和高16位
printf("Sample[%d] - ADC1 (Low 16 bits): %d\n", i, ADC_BUFFER & 0xFFFF); //ADC1
printf("Sample[%d] - ADC2 (High 16 bits): %d\n", i,(ADC_BUFFER >> 16) & 0xFFFF);//ADC2
}
}
g_adc3_dma_complete_flag = 0;
g_adc3_dma_start_flag = 0;
}
}
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楼主
发表于 2024-3-1 17:01:11
