spi master.zip

spi主机程序 STM32CubeMx生成 Hal库 DMA发送接收 int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* 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_USART1_UART_Init(); MX_SPI5_Init(); /* USER CODE BEGIN 2 */ // HAL_UART_Receive_DMA(&huart1,rxBuffer,BUFFER_SIZE); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { HAL_GPIO_WritePin(GPIOF, GPIO_PIN_6, GPIO_PIN_RESET); spi_tx[0] =6; spi_tx[1] = 7; spi_tx[2] = 8; spi_tx[3] = 9; memset(spi_rx,0,BUFFER_SIZE); HAL_SPI_TransmitReceive_DMA(&hspi5,spi_tx,spi_rx,BUFFER_SIZE); HAL_GPIO_WritePin(GPIOF, GPIO_PIN_6, GPIO_PIN_SET); HAL_Delay(1000); /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ }