在STM32CubeIDE上对F446RE开发板进行开发，过UART获取数居出现问题。
当pc发送数组时，只有接受到第一个字节并在STM32的数组中更新，其他字节就没收到。
当前的代码结构如下：
static void MX_USART2_UART_Init(void) { /* USER CODE BEGIN USART2_Init 0 */ /* USER CODE END USART2_Init 0 */ /* USER CODE BEGIN USART2_Init 1 */ /* USER CODE END USART2_Init 1 */ huart2.Instance = USART2; huart2.Init.BaudRate = 115200; huart2.Init.WordLength = UART_WORDLENGTH_8B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.Init.Parity = UART_PARITY_NONE; huart2.Init.Mode = UART_MODE_TX_RX; huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart2.Init.OverSampling = UART_OVERSAMPLING_16; if (HAL_UART_Init(&huart2) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN USART2_Init 2 */ /* USER CODE END USART2_Init 2 */ } void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { HAL_UART_Receive_IT(&huart2, rx_buff, 5); __NOP(); } void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart) { __NOP(); } void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart) { __NOP(); } 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_USART2_UART_Init(); /* USER CODE BEGIN 2 */ //HAL_UART_Transmit_IT(&huart2, mess, 20); HAL_UART_Receive_IT(&huart2, rx_buff, 5); HAL_UART_Transmit_IT(&huart2, tx_buff, 5); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5); HAL_Delay(500); } /* USER CODE END 3 */ }
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