labwindowscvi6第七章串行口通信和网络数据传输

10一月2025labwindowscvi6第七章串行口通信和网络数据传输串行口通讯RS-232端口定义载波检测接收数据发送数据数据终端就绪信号地数据装置就绪请求发送清除发送振铃指示1234567891/10/2025数据传输格式电气特性负逻辑：1＝-5V~-15V,0=+5V~+15V最高速率：20kbit/s最远距离：15m起始位奇偶校验位停止位ASCII码1/10/2025打开配置和关闭intOpenComConfig(intCOM_Port,charDevice_Name[],longBaud_Rate,intParity,intData_Bits,intStop_Bits,intInput_Queue_Size,intOutput_Queue_Size);i=OpenComConfig(1,“”,14400,0,7,1,512,512);intCloseCom(intCOM_Port);i=CloseCom(1);读写intComRd(intCOM_Port,charBuffer[],intCount);i=ComRd(1,buf,128);intComWrt(intCOM_Port,charBuffer[],intCount);i=ComWrt(1,buf,128);intComRdByte(intCOM_Port);intComWrtByte(intCOM_Port,intByte);控制intFlushInQ(intCOM_Port);intFlushOutQ(intCOM_Port);1/10/2025状态查询intGetInQLen(intCOM_Port);i=GetInQLen(1);intGetOutQLen(intCOM_Port);i=GetOutQLen(1);事件处理intInstallComCallback(intCOM_Port,intEvent_Mask,intNotify_Count,intEvent_Character,ComCallbackPtrCallback_Function,void*Callback_Data);

notifyCount=50;//Waitforatleast50bytesinqueueeventChar=13;//WaitforLFeventMask=LWRS_RXFLAG|LWRS_RECEIVE;InstallComCallback(comport,eventMask,notifyCount,eventChar,ComCallbackFunction,NULL);1/10/2025网络通讯TCP协议（TransmissionControlProtocol传输控制协议）使用TCP进行网络通信时每个连接包括一个服务器和一个客户。TCP服务器能通过网络向客户应用程序发送数据或从客户应用程序接收数据，客户应用程序也可以向服务器应用程序发送数据或从服务器应用程序接收数据；TCP服务器应用程序一旦向系统注册，就等待客户应用程序的连接请求；而客户应用程序只能向已经存在的服务器应用程序请求连接。每个TCP服务器需要主机名(如：aaa.bbb.ccc)或主机IP地址(如：123.456.78.90)和这个主机的唯一端口号1/10/2025服务器函数intRegisterTCPServer(unsignedintPort_Number,tcpFuncPtrCallback_Function,void*Callback_Data);i=RegisterTCPServer(200,ServerTCPCB,0);回调函数：int(*tcpFuncPtr)(unsignedhandle,intxType,interrCode,void*callbackData);TCP_CONNECTTCP_DISCONNECTTCP_DATAREADYintCVICALLBACKServerTCPCB(unsignedhandle,intevent,interror,void*callbackData);intUnregisterTCPServer(unsignedintPort_Number);intServerTCPRead(unsignedintConversation_Handle,void*Data_Buffer,unsignedintData_Size,unsignedintTime_Out);dataSize=ServerTCPRead(g_hconversation,receiveBuf,dataSize,1000);1/10/2025intServerTCPWrite(unsignedintConversation_Handle,void*Data_Pointer,unsignedintData_Size,unsignedintTime_Out);i=ServerTCPWrite(g_hconversation,transmitBuf,strlen(transmitBuf)+1,1000);intDisconnectTCPClient(unsignedintConversation_Handle);客户机函数intConnectToTCPServer(unsignedint*Conversation_Handle,unsignedintPort_Number,charServer_Host_Name[],tcpFuncPtrCallback_Function,void*Callback_Data,unsignedintTime_Out);i=ConnectToTCPServer(&g_hconversation,200,tempBuf,ClientTCPCB,NULL,5000);回调函数：int(*tcpFuncPtr)(unsignedhandle,intxType,interrCode,void*callbackData);intCVICALLBACKClientTCPCB(unsignedhandle,intevent,interror,void*callbackData);TCP_DISCONNECTTCP_DATAREADY1/10/2025intDisconnectFromTCPServer(unsignedintConversation_Handle);intClientTCPRead(unsignedintConversation_Handle,void*Data_Buffer,unsignedintData_Size,unsignedintTime_Out);i=ClientTCPRead(g_hconversation,receiveBuf,dataSize,1000);intClientTCPWrite(unsignedintConversation_Handle,void*Data_Pointer,unsignedintData_Size,unsignedintTime_Out);ClientTCPWrite(g_hconversation,transmitBuf,strlen(transmitBuf)+1,1000);支持函数intGetTCPHostAddr(charBuffer[],intBuffer_Size);intGetTCPHostName(charBuffer[],intBuffer_Size);intGetTCPPeerAddr(unsignedintConnection_Handle,charBuffer[],intBuffer_Size);intGetTCPPeerName(uns