STM32F407ZGT6 LQFP144 uart 打印输出

STM32F407ZGT6 +AX58100 ETHERCAT芯片软件，需要查看SSC 协议栈运行情况，UART输出状态信息。

STM32F407ZGT6 驱动库使用标准库，虽然老，但是够用。

1.STM32F407ZGT6 芯片情况

STM32F407ZGT6 作为AX58100 的主控

2.板子硬件

STM32F407ZGT6 +AX58100 ETHERCAT 从站开发板

2.0 硬件连接图

AX58100 核心板的UART 采用UART1 PB6 PB7 PIN

2.1 UART1配置

/*
*********************************************************************************************************
*	º¯ Êý Ãû: uart1_Init
*	¹¦ÄÜ˵Ã÷: ´®¿Ú1³õʼ»¯º¯Êý
*	ÐÎ    ²Î: 1.bound£¨´®¿Ú²¨ÌØÂÊ£©
*	·µ »Ø Öµ: ÎÞ
*********************************************************************************************************
*/ 
void uart1_Init(u32 bound)
{
   //GPIO¶Ë¿ÚÉèÖÃ
  GPIO_InitTypeDef GPIO_InitStructure;
	USART_InitTypeDef USART_InitStructure;
	
	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB,ENABLE); //ʹÄÜGPIOAʱÖÓ
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);//ʹÄÜUSART1ʱÖÓ
//	GPIO_PinAFConfig(GPIOB,GPIO_PinSource6,GPIO_AF_USART1);
//	void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
	//   GPIO_PinRemapConfig(GPIO_Remap_USART1, ENABLE);
 
	//´®¿Ú1¶ÔÓ¦Òý½Å¸´ÓÃÓ³Éä
	GPIO_PinAFConfig(GPIOB,GPIO_PinSource6,GPIO_AF_USART1); //GPIOA9¸´ÓÃΪUSART1
	GPIO_PinAFConfig(GPIOB,GPIO_PinSource7,GPIO_AF_USART1); //GPIOA10¸´ÓÃΪUSART1
	
	//USART1¶Ë¿ÚÅäÖÃ
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; //GPIOA9ÓëGPIOA10
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//¸´Óù¦ÄÜ
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;	//ËÙ¶È50MHz
	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //ÍÆÍ츴ÓÃÊä³ö
	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //ÉÏÀ­
	GPIO_Init(GPIOB,&GPIO_InitStructure); //³õʼ»¯PA9£¬PA10

   //USART1 ³õʼ»¯ÉèÖÃ
	USART_InitStructure.USART_BaudRate = bound;//²¨ÌØÂÊÉèÖÃ
	USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×Ö³¤Îª8λÊý¾Ý¸ñʽ
	USART_InitStructure.USART_StopBits = USART_StopBits_1;//Ò»¸öֹͣλ
	USART_InitStructure.USART_Parity = USART_Parity_No;//ÎÞÆæżУÑéλ
	USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎÞÓ²¼þÊý¾ÝÁ÷¿ØÖÆ
	USART_InitStructure.USART_Mode =  USART_Mode_Tx;	//ÊÕ·¢Ä£Ê½
  USART_Init(USART1, &USART_InitStructure); //³õʼ»¯´®¿Ú1
	
  USART_Cmd(USART1, ENABLE);  //ʹÄÜ´®¿Ú1 
	//USART_ClearFlag(USART1, USART_FLAG_TC);   //½â¾öµÚÒ»¸ö×Ö½Ú¶ªÊ§ÎÊÌâ,Èç¹ûµÚÒ»¸ö×Ö½Ú¶ªÊ§¿ÉÒÔ¼ÓÉÏÕâÐÐ
}

2.1.1 UART1调用代码

#include "Dbg.h"

int main(void)
{
	  SysTick_Init();  //ʱÖÓ³õʼ»¯
	  uart1_Init(115200);
//	  LED_Init();      //LED³õʼ»¯
//	  KEY_Init();      //°´¼ü³õʼ»¯
	  Println("³õʼ»¯Íê³É,´òÓ¡¿ª¹ØΪ%d\r\n",Print_Switch);
		printf("build time is %s %s\n\r",__DATE__,__TIME__);		

	/* 
       ÅäÖÃϵͳʱÖÓµ½168MHz
       - Çл»Ê¹ÓÃHSE¡£
       - ´Ëº¯Êý»á¸üÐÂÈ«¾Ö±äÁ¿SystemCoreClock£¬²¢ÖØÐÂÅäÖÃHAL_InitTick¡£
    */
	//	SystemClock_Config();
	//	bsp_InitUart();		/* ³õʼ»¯´®¿Ú */
	
    GPIO_Config(); 
    /* initialize the Hardware and the EtherCAT Slave Controller */
    HW_Init();

    MainInit();

    bRunApplication = TRUE;
    do
    {

        MainLoop();
			extern u32 SysTick_1ms ;
				printf("SysTick_1ms=%d\r\n",SysTick_1ms);
    } while (bRunApplication == TRUE);

    HW_Release();
		
    return 0;

}

2.2 UART1执行结果

3.参考

1.本地电脑工程路径：

D:\ethercat_stm32_ec01_master\AX58100从站开发板\04.软件开发指南\2.代码例程\EtherCAT例程\IO-FSMC-58100\IO-FMSC-58100\FMSC Ethercat AX58100\STM32F407 Ethercat\MDK-ARM

https://gitee.com/Notmi/stm32-standard-peripheral-libraries/tree/master/stm32%E6%A0%87%E5%87%86%E5%BA%93_03%E4%B8%B2%E5%8F%A3printf%E6%89%93%E5%8D%B0