hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; hdma_usart1_rx.Init.Mode = DMA_NORMAL; hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW; hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; if (HAL_DMA_I...
HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_DMA_Init(); MX_ADC1_Init(); MX_USART1_UART_Init(); HAL_ADC_Start_DMA(&hadc1, temp,100);while(1) {/* USER CODE END WHILE *//* USER CODE BEGIN 3 */for(i =0; i <100;) { ad1 += temp[i++]; ad2 += temp[i+...
MX_USART1_UART_Init()==》HAL_UART_Init()==》HAL_UART_MspInit(); 因为我们开启了跟UART传输事件相关的DMA功能,在HAL_UART_MspInit();函数里不仅有对与UART相关的GPIO的复用功能配置,而且,还有跟UART事件相关的DMA配置。看来UART的初始化还是跟DMA有关联的。 结合上面DMA初始化函数里的那句开启DMA外设时钟代...
/* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_SDIO_SD_Init(); MX_FATFS_Init(); /* USER CODE BEGIN 2 ...
/* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_SDIO_SD_Init(); ...
开启DMA接收: 配置中断分组: 取消自动生成串口1的中断服务程序,我们自己写: 然后生成代码就可以了。 进入代码,添加串口1中断服务程序: #define UART_RX_LEN 1024 // 一次最大接收的数据量 uint8_t UART_RX_BUF[UART_RX_LEN]; // DMA数据接收缓存 ...
MX_DMA_Init(); MX_SDIO_SD_Init(); MX_FATFS_Init(); MX_USB_DEVICE_Init(); // 挂载 retSD = f_mount(&SDFatFS, SDPath, 1); switch(retSD) { case FR_NO_FILESYSTEM: // FM_FAT32 { retSD = f_mkfs(SDPath,FM_FAT32,512,work, sizeof(work)); ...
void MX_DMA_Init(void){ /* DMA controller clock enable */ __HAL_RCC_DMA2_CLK_ENABLE();/*...
DMA方式 /***dma.c文件中的DMA初始化函数***/voidMX_DMA_Init(void){/* DMA controller clock enable */__HAL_RCC_DMA1_CLK_ENABLE();/* DMA interrupt init *//* DMA1_Channel4_IRQn interrupt configuration */HAL_NVIC_SetPriority(DMA1_Channel4_IRQn,0,0);HAL_NVIC_EnableIRQ(DMA1_Channel4...
/* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_SDIO_SD_Init(); MX_FATFS_Init(); /* USER CODE BEGIN 2...