STM32F767 USART PRINTF

/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

#include "delay.h"
#include "bsp_lcd.h"
#include "bsp_printf.h"

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

uint16_t FBuffer[LCD_WIDTH*LCD_HEIGHT] __attribute__((at(0xC0000000)));
uint32_t POINT_COLOR;		//画笔颜色
uint32_t BACK_COLOR;  	//背景色 

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

DMA2D_HandleTypeDef hdma2d;

LTDC_HandleTypeDef hltdc;

UART_HandleTypeDef huart1;

SDRAM_HandleTypeDef hsdram1;

/* USER CODE BEGIN PV */


/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_FMC_Init(void);
static void MX_LTDC_Init(void);
static void MX_DMA2D_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */


/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
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_FMC_Init();
  MX_LTDC_Init();
  MX_DMA2D_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
	
	delay_init(216);
	delay_ms(5000);
	
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
	
  while (1)
  {
		printf("hello,world!\n");
		delay_ms(1000);	
		
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		
  }
  /* USER CODE END 3 */
}

/**
  * @brief USART1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART1_UART_Init(void)
{

  /* USER CODE BEGIN USART1_Init 0 */

  /* USER CODE END USART1_Init 0 */

  /* USER CODE BEGIN USART1_Init 1 */

  /* USER CODE END USART1_Init 1 */
  huart1.Instance = USART1;
  huart1.Init.BaudRate = 115200;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART1_Init 2 */

  /* USER CODE END USART1_Init 2 */

}

#ifndef __BSP_PRINTF_H
#define __BSP_PRINTF_H

#ifdef __cplusplus
extern "C" {
#endif

#include "main.h"
#include "stdio.h"	




#ifdef __cplusplus
}
#endif

#endif /* __BSP_PRINTF_H */

#include "bsp_printf.h"


////////////////////////////////////////////////////////////////////////////////// 	  
//加入以下代码,支持printf函数,而不需要选择use MicroLIB	  
//#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)	
#if 1
#pragma import(__use_no_semihosting)             
//标准库需要的支持函数                 
struct __FILE 
{ 
	int handle; 
}; 

FILE __stdout;       
//定义_sys_exit()以避免使用半主机模式    
void _sys_exit(int x) 
{ 
	x = x; 
} 
//重定义fputc函数 
int fputc(int ch, FILE *f)
{ 	
	while((USART1->ISR&0X40)==0);//循环发送,直到发送完毕   
	USART1->TDR=(uint8_t)ch;      
	return ch;
}
#endif 

总结：
1、通过printf实现串口发送
2、

3、

4、