STM32CubeMX 4.7.1 Make USART2(REMAP_USART2) Code Run Error!

[wjandsq]

Posted on May 22, 2015 at 05:56

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  /* USER CODE BEGIN USART2_MspInit 0 */  /* USER CODE END USART2_MspInit 0 */    /* Peripheral clock enable */    __USART2_CLK_ENABLE();      /**USART2 GPIO Configuration        PD5     ------> USART2_TX    PD6     ------> USART2_RX     */    GPIO_InitStruct.Pin = GPIO_PIN_5;    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);    GPIO_InitStruct.Pin = GPIO_PIN_6;    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;    GPIO_InitStruct.Pull = GPIO_NOPULL;    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);    __HAL_AFIO_REMAP_USART2_ENABLE(); // here STM32F103ZE run error!  /* System interrupt init*/    HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);    HAL_NVIC_EnableIRQ(USART2_IRQn);  /* USER CODE BEGIN USART2_MspInit 1 */  /* USER CODE END USART2_MspInit 1 *///--------------------------------------------------------------------------------------------------------------USART2 code run error! but old code is normal! use USE_STDPERIPH_DRIVER lib//--------------------------------------------------------------------------------------------------------------   GPIO_InitTypeDef GPIO_InitStructure;   USART_InitTypeDef USART_InitStructure;&sharpifdef  USART2_Remap_PD5_PD6  /* Configure USART2 GPIO PD5 PD6 */  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_AFIO,ENABLE);&sharpelse  /* Configure USART2 GPIO PA2 PA3 */  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO,ENABLE);&sharpendif  /* Configure and enable the USART2 */  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);&sharpifdef  USART2_Remap_PD5_PD6  /* USART2 TX PD.05 */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  GPIO_Init(GPIOD, &GPIO_InitStructure);  /* USART2 RX PD.06 */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  GPIO_Init(GPIOD, &GPIO_InitStructure);  /*Configure peripheral I/O remapping */  GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);&sharpelse  /* USART2 TX PA.02 */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  GPIO_Init(GPIOA, &GPIO_InitStructure);  /* USART2 RX PA.03 */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  GPIO_Init(GPIOA, &GPIO_InitStructure);&sharpendif  USART_InitStructure.USART_BaudRate = linecoding2.bitrate;  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;  USART_Init(USART2, &USART_InitStructure);  USART_Cmd(USART2, ENABLE);  USART_ITConfig(USART2,USART_IT_RXNE,ENABLE); #stm32cubemx-4.7.1-remap_usart2

[wjandsq]

Posted on May 22, 2015 at 07:34USART2 REMAP have no error, but Receive data number is not correct?why the first char of receive is always 0xF8 ? /* USER CODE BEGIN 0 */#define USART1_RXD_SBUF_MAX 4096#define USART2_TXD_SBUF_MAX 4096uint8_t USART1_RXD_Buffer[USART1_RXD_SBUF_MAX];uint8_t USART2_TXD_Buffer[USART2_TXD_SBUF_MAX];#define USART1_RX_LEN 11#define USART2_TX_LEN 10/* USER CODE END 0 */  /* USER CODE BEGIN 1 */  uint16_t i;  for(i = 0; i < USART2_TX_LEN; ++i)  {    USART2_TXD_Buffer[i] = i%128;  }  /* USER CODE END 1 */  /* Initialize all configured peripherals */  MX_USART1_UART_Init();  MX_USART2_UART_Init(); /* F103/429 USARTx_TX Pin have a char,why ?*/  /* USER CODE BEGIN 2 */  HAL_GPIO_WritePin(GPIOD,GPIO_PIN_13,GPIO_PIN_SET); // Error  HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,GPIO_PIN_SET); // Normal   HAL_UART_Receive_IT(&huart1, &USART1_RXD_Buffer[0],USART1_RX_LEN);  HAL_UART_Transmit_IT(&huart2,&USART2_TXD_Buffer[0],USART2_TX_LEN);  /* USER CODE END 2 */

[wjandsq]

Posted on May 22, 2015 at 08:20

but baud ratechange to 19200 bps, all receive data and number is

correct

! when baud rate up to 1000000 bps , into this code and not exit! Of course， baud rate is 230400bps，hardware have noproblem 。 if(huart->ErrorCode != HAL_UART_ERROR_NONE) { /* Set the UART state ready to be able to start again the process */ huart->State = HAL_UART_STATE_READY; HAL_UART_ErrorCallback(huart); } USE_STDPERIPH_DRIVER, USB_Dual_CDC, two MAX3232, hardware test is ok:

[wjandsq]

Posted on May 22, 2015 at 13:40

/* Initialize all configured peripherals */

MX_USART1_UART_Init(); MX_USART2_UART_Init(); /* USART2 init, but not send */ /* USER CODE BEGIN 2 */ HAL_UART_Receive_IT(&huart1, &USART1_RXD_Buffer[0],USART1_RX_LEN); //HAL_UART_Transmit_IT(&huart2,&USART2_TXD_Buffer[0],USART2_TX_LEN); /* not run ,but still usart1 receive a 0xF8 */ /* USER CODE END 2 */ /* Initialize all configured peripherals */ MX_USART1_UART_Init(); //MX_USART2_UART_Init(); /* off this code, normal */ /* USER CODE BEGIN 2 */ HAL_UART_Receive_IT(&huart1, &USART1_RXD_Buffer[0],USART1_RX_LEN); //HAL_UART_Transmit_IT(&huart2,&USART2_TXD_Buffer[0],USART2_TX_LEN); /* not run */ /* USER CODE END 2 */