求救 新建工程串口log都打不出来
STM32F429新建一个工程。但是串口log都没有打出来，不知道开没有开机呢！main.h
#define USART_LOG USART3
#define USART_LOG_CLK_ENABLE() __HAL_RCC_USART3_CLK_ENABLE()
#define USART_LOG_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define USART_LOG_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define USART_LOG_FORCE_RESET() __HAL_RCC_USART3_FORCE_RESET()
#define USART_LOG_RELEASE_RESET() __HAL_RCC_USART3_RELEASE_RESET()
/* Definition for USART_LOG Pins */
#define USART_LOG_TX_PIN GPIO_PIN_10
#define USART_LOG_TX_GPIO_PORT GPIOB
#define USART_LOG_TX_AF GPIO_AF7_USART3
#define USART_LOG_RX_PIN GPIO_PIN_11
#define USART_LOG_RX_GPIO_PORT GPIOB
#define USART_LOG_RX_AF GPIO_AF7_USART3
/* Definition for USART_LOG's NVIC */
#define USART_LOG_IRQn USART3_IRQn
#define USART_LOG_IRQHandler USART3_IRQHandler
main.c
static void Init_USART_Log_GPIO(void)
{
Uart_Log.Instance = USART3;
Uart_Log.Init.BaudRate = 115200;
Uart_Log.Init.WordLength = UART_WORDLENGTH_8B;
Uart_Log.Init.StopBits = UART_STOPBITS_1;
Uart_Log.Init.Parity = UART_PARITY_NONE;
Uart_Log.Init.Mode = UART_MODE_TX_RX;
Uart_Log.Init.HwFlowCtl = UART_HWCONTROL_NONE;
Uart_Log.Init.OverSampling = UART_OVERSAMPLING_16;
if(HAL_UART_Init(&Uart_Log) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/* USART3_IRQn interrupt configuration */
//HAL_NVIC_SetPriority(USART_LOG_IRQn, 5, 0);
//HAL_NVIC_EnableIRQ(USART_LOG_IRQn);
}
#ifdef __GNUC__
/* With GCC, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART3 and Loop until the end of transmission */
HAL_UART_Transmit(&Uart_Log, (uint8_t *)&ch, 1, 0xFFFF);
return ch;
}
stm32f4xx_hal_msp.c
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDefGPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USART_LOG_TX_GPIO_CLK_ENABLE();
USART_LOG_RX_GPIO_CLK_ENABLE();
/* Enable USART1 clock */
USART_LOG_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration*/
GPIO_InitStruct.Pin = USART_LOG_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = USART_LOG_TX_AF;
HAL_GPIO_Init(USART_LOG_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration*/
GPIO_InitStruct.Pin = USART_LOG_RX_PIN;
GPIO_InitStruct.Alternate = USART_LOG_RX_AF;
HAL_GPIO_Init(USART_LOG_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-3- Configure the NVIC for UART ########################################*/
/* NVIC for USART1 */
HAL_NVIC_SetPriority(USART_LOG_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USART_LOG_IRQn);
}
请大神指点一二，有与新人没有币，有酬必报。
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