STM32+W5500+以太网应用开发+001_TCP 服务器和客户端

• 实验效果1-TCP服务器
• 实验效果2-TCP客户端
• 1 制作STM32CubeMX工程文件生成MDK工程
• 2 添加W5500驱动库文件
• 3 添加头文件目录
• 4 实例1-TCP服务器
• • 4.1 修改main.c代码
  • 4.2 测试
• 5 实例2-TCP客户端
• • 5.1 修改main.c代码
  • 5.2 测试

实验效果1-TCP服务器

实验效果2-TCP客户端

1 制作STM32CubeMX工程文件生成MDK工程

拷贝001_Ping.ioc到002_TCP文件夹，并重命名为002_TCP.ioc，重新生成MDK工程

2 添加W5500驱动库文件

3 添加头文件目录

4 实例1-TCP服务器

4.1 修改main.c代码

只列举和上一个例子不同地方的代码，其他可以参照001_Ping例子

STM32+W5500+以太网应用开发+001_Ping 新建工程，移植驱动-CSDN博客

/* USER CODE BEGIN PTD */ #define LISTEN_PORT 5000 #define RECEIVE_BUFF_SIZE 128  wiz_NetInfo gWIZNETINFO = {   .mac = { 0x80, 0x80, 0x80,0x80,0x80,0x80 },//MSB - LSB   .ip  = { 192, 168, 1, 10 },   .sn  = { 255, 255, 255, 0 },   .gw  = { 192, 168, 1, 1 },//网关参数   .dns  = { 8, 8, 8, 8 },   .dhcp = NETINFO_STATIC }; uint8_t receive_buff[RECEIVE_BUFF_SIZE]; /* USER CODE END PTD */ 

/* USER CODE BEGIN 2 */   printf("A simple TCP Server Application using W5500!\r\n");   W5500Init();                                     //W5500初始化   ctlnetwork(CN_SET_NETINFO, (void*)&gWIZNETINFO); //配置网络参数      wiz_PhyConf phyconf;   phyconf.by = PHY_CONFBY_SW;   phyconf.duplex = PHY_DUPLEX_FULL;   phyconf.speed = PHY_SPEED_10;   phyconf.mode = PHY_MODE_AUTONEGO;   ctlwizchip(CW_SET_PHYCONF, (void*)&phyconf);     //配置PHY参数      PHYStatusCheck();                                //检查网络连接状态   PrintPHYConf();                                  //打印PHY配置信息   printf("Simple TCP Server Application\r\n");   /* USER CODE END 2 */ 

while (1)   {     /* USER CODE END WHILE */      /* USER CODE BEGIN 3 */     printf("\r\nInitializing server socket\r\n");  	  //Parameters in order socket_id, protocol TCP or UDP, Port number, Flags=0 	  //Return value is socket ID on success 	  if(socket(1,Sn_MR_TCP,LISTEN_PORT,0)!=1)//创建一个socket：Socket号，TCP/UDP类型，端口号 	  { 		  //error 		  printf("Cannot create Socket!\r\n"); 		  while(1);//halt here 	  }  	  //success 	  printf("Socket Created Successfully ! \r\n");  	  uint8_t socket_io_mode=SOCK_IO_BLOCK;  	  ctlsocket(1, CS_SET_IOMODE , &socket_io_mode);//set blocking IO mode      printf("IP Address is %d.%d.%d.%d\r\n",gWIZNETINFO.ip[0],gWIZNETINFO.ip[1],gWIZNETINFO.ip[2],gWIZNETINFO.ip[3]); 	  printf("Start listening on port %d ! \r\n",LISTEN_PORT); 	  printf("Waiting for a client connection. \r\n");  	  //Make it a passive socket (i.e. listen for connection) 	  if(listen(1)!=SOCK_OK)//监听端口 	  {//our socket id is 1 (w5500 have 8 sockets from 0-7) 		  //error 		  printf("Cannot listen on port %d",LISTEN_PORT); 		  while(1); 	  }  	  uint8_t sr=0x00;//socket status register  	  do 	  { 		  sr=getSn_SR(1);//获取Sn_SR寄存器，参数0~7  	  }while (sr!=SOCK_ESTABLISHED && sr!=SOCK_CLOSED);  	  if(sr==SOCK_CLOSED) 	  { 		  printf("Some error occurred on server socket. Please restart.\r\n"); 		  while(1); 	  }  	  if(sr==SOCK_ESTABLISHED)//成功连接 	  { 		  //we come here only when a client has connected. 		  //Now we can read data from the socket 		  printf("A client connected!\r\n"); 		  printf("Waiting for Client Data ...!\r\n");  		  while(1) 		  { 			  int len=recv(1, receive_buff, RECEIVE_BUFF_SIZE);//从连接设备读取数据到receive_buff  			  if(len==SOCKERR_SOCKSTATUS) 			  { 				  //client has disconnected 				  printf("Client has disconnected\r\n"); 				  printf("*** SESSION OVER ***\r\n\r\n"); 				  break; 			  }  			  receive_buff[len]='\0';  			  printf("Received %d bytes from client\r\n",len); 			  printf("Data Received: %s", receive_buff);          if(strcmp((char*)receive_buff,"Who are u")==0) 			  {//判断接收到"Who are u" 				  memcpy(receive_buff,"I am role_2099!",15);//修改应答内容           len = 15; 			  } 			  //Echo the data back encloused in a [] pair 			  send(1,(uint8_t*)"[",1);//starting sq bracket 向客户端发送[ 			  send(1,receive_buff,len);// the data          向客户端发送接收到的内容或者特定的回答 			  send(1,(uint8_t*)"]",1);//closing sq bracket  向客户端发送]  			  printf("\r\nECHO sent back to client\r\n");  			  //Look for quit message and quit if received 			  if(strcmp((char*)receive_buff,"QUIT")==0) 			  {//收到"QUIT"，端口客户端连接 				  printf("Received QUIT command from client\r\n"); 				  printf("Disconnecting ... \r\n"); 				  printf("*** SESSION OVER ***\r\n\r\n"); 				  disconnect(1);//disconnect from the clinet 断开客户端连接 				  break;//come out of while loop 退出，回到131行，重新等待客户端连接 			  }  		  }//While loop (as long as client is connected)  	  }//if block, client connect success   }   /* USER CODE END 3 */ 

4.2 测试

1> ping测试，确认通信正常

2> 客户端未连接时log信息

3> 使用网络调试助手配置为客户端，远程主机地址是开发板IP地址，端口号5000

4> 连接成功

5 实例2-TCP客户端

5.1 修改main.c代码

/* USER CODE BEGIN PTD */ uint8_t destination_ip[]={192,168,1,20}; //远程主机地址 uint16_t destination_port = 5000;        //远程主机端口  #define LISTEN_PORT 5000 //本地主机端口 #define RECEIVE_BUFF_SIZE 128  wiz_NetInfo gWIZNETINFO = {   .mac = { 0x80, 0x80, 0x80,0x80,0x80,0x80 },//MSB - LSB   .ip  = { 192, 168, 1, 10 },  //IP地址   .sn  = { 255, 255, 255, 0 }, //子网掩码   .gw  = { 192, 168, 1, 1 },   //网关参数   .dns  = { 8, 8, 8, 8 },      //DNS   .dhcp = NETINFO_STATIC };    //DHCP关闭 uint8_t receive_buff[RECEIVE_BUFF_SIZE]; /* USER CODE END PTD */ 

/* USER CODE BEGIN 2 */   printf("A simple TCP Client Application using W5500!\r\n");   W5500Init();                                     //W5500初始化   ctlnetwork(CN_SET_NETINFO, (void*)&gWIZNETINFO); //配置网络参数      wiz_PhyConf phyconf;   phyconf.by = PHY_CONFBY_SW;   phyconf.duplex = PHY_DUPLEX_FULL;   phyconf.speed = PHY_SPEED_10;   phyconf.mode = PHY_MODE_AUTONEGO;   ctlwizchip(CW_SET_PHYCONF, (void*)&phyconf);     //配置PHY参数      PHYStatusCheck();                                //检查网络连接状态   PrintPHYConf();                                  //打印PHY配置信息   printf("Simple TCP Client Application\r\n");   /* USER CODE END 2 */ 

while (1)   {     /* USER CODE END WHILE */      /* USER CODE BEGIN 3 */          //The return value of socket() call is the socket number if success     //we are using socket number 1 so it should return 1 for success     //The 3rd argument is the local port, when a client app is written     //better give 0 here, that will use a random available port     if(socket(1, Sn_MR_TCP, 0, 0)==1) //创建Socket=1     {       printf("\r\nSocket Created Successfully");     }     else     {       printf("\r\nCannot create socket");       while(1);     }      printf("\r\nConnecting to server: %d.%d.%d.%d @ TCP Port: %d",destination_ip[0],destination_ip[1],destination_ip[2],destination_ip[3],destination_port);     if(connect(1, destination_ip, destination_port)==SOCK_OK) //连接远程主机     {       printf("\r\nConnected with server.");     }     else     {       //failed       printf("\r\nCannot connect with server!");       while(1);     }      while (1)     {       //Return value of the send() function is the amount of data sent       if(send(1, "I am role_2099!\r\n", 16)<=SOCK_ERROR) //向服务器发送数据I am role_2099       {         printf("\r\nSending Failed!");         while(1);        }       else       {         printf("\r\nSending Success!");       }        HAL_Delay(1000);     }   }   /* USER CODE END 3 */ 

5.2 测试

1> 电脑端没有开启程序指定的服务器和端口

2> 网络调试助手配置，并开启服务器

3> 重新启动开发板，电脑端收到来自TCP客户端发来的信息