11

Modbus_communication/Modbus_RTU_Salve/RTU_common.cpp

@@ -14,16 +14,16 @@ char read_buf[MAX_NUMBER];
  * dcb.ByteSize=6,7,8时   dcb.StopBits不能为1
  * dcb.ByteSize=5时   dcb.StopBits不能为2
  ********************************************************************************************/
-HANDLE InitCOM(LPCTSTR Port, int baud_rate, BYTE date_bits, BYTE stop_bit, BYTE parity)
+HANDLE Init_COM(LPCTSTR Port, int baud_rate, BYTE date_bits, BYTE stop_bit, BYTE parity)
 {
-	HANDLE hCom = CreateFile(Port, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);//同步方式打开串口
-	if (INVALID_HANDLE_VALUE == hCom)
+	HANDLE Handle_Com = CreateFile(Port, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);//同步方式打开串口
+	if (INVALID_HANDLE_VALUE == Handle_Com)
 	{
 		return INVALID_HANDLE_VALUE;
 	}
-	SetupComm(hCom, 4096, 4096);//设置缓存
+	SetupComm(Handle_Com, 4096, 4096);//设置缓存
 	DCB dcb;
-	if (!GetCommState(hCom, &dcb))
+	if (!GetCommState(Handle_Com, &dcb))
 	{
 		cout << "获取串口配置失败" << endl;
 	}
@@ -47,22 +47,20 @@ HANDLE InitCOM(LPCTSTR Port, int baud_rate, BYTE date_bits, BYTE stop_bit, BYTE
 		dcb.fParity = TRUE;		//奇偶校验开启
 		dcb.Parity = parity;	//校验模式
 	}
-	cout << SetCommState(hCom, &dcb) << endl;
-	PurgeComm(hCom, PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR | PURGE_TXABORT);//清除缓存
+	cout << SetCommState(Handle_Com, &dcb) << endl;
+	PurgeComm(Handle_Com, PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR | PURGE_TXABORT);//清除缓存
 	//设置串口读写时间
 	COMMTIMEOUTS CommTimeOuts;
-	GetCommTimeouts(hCom, &CommTimeOuts);
+	GetCommTimeouts(Handle_Com, &CommTimeOuts);
 	CommTimeOuts.ReadIntervalTimeout = 5;
 	CommTimeOuts.ReadTotalTimeoutMultiplier = 1;
 	CommTimeOuts.ReadTotalTimeoutConstant = 0;
 	CommTimeOuts.WriteTotalTimeoutMultiplier = 10;
 	CommTimeOuts.WriteTotalTimeoutConstant = 1000;
-	if (!SetCommTimeouts(hCom, &CommTimeOuts)) {
+	if (!SetCommTimeouts(Handle_Com, &CommTimeOuts)) {
 		return INVALID_HANDLE_VALUE;
 	}
-	//创建线程，读取数据
-	//HANDLE hReadCommThread = (HANDLE)CreateThread(NULL, 0, CommProc, &hCom, 0, NULL);
-	return hCom;
+	return Handle_Com;
 }
 
 /*********************************************************************************************
@@ -135,8 +133,8 @@ int test(void)
 {
 	string COMM;
 	cin >> COMM;
-	HANDLE H_Com = InitCOM((LPCTSTR)COMM.c_str(), 9600, 8, 0, 1);
-	if (H_Com == INVALID_HANDLE_VALUE)
+	HANDLE Handle_Com = Init_COM((LPCTSTR)COMM.c_str(), 9600, 8, 0, 1);
+	if (Handle_Com == INVALID_HANDLE_VALUE)
 	{
 		cout << "初始化串口失败" << endl;
 		getchar();
@@ -152,16 +150,16 @@ int test(void)
 		//生成请求报文
 		//发送请求报文
 
-		PurgeComm(H_Com, PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR | PURGE_TXABORT);//清除缓存
+		PurgeComm(Handle_Com, PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR | PURGE_TXABORT);//清除缓存
 		while (1)
 		{
-			if (true == SendData(H_Com, "ok", 2))
+			if (true == SendData(Handle_Com, "ok", 2))
 			{
 				cout << "发送请求报文成功" << endl;
 				break;
 			}
 		}
-		BOOL bReadOK = ReadFile(H_Com, read_buf, 256, &dwRead, NULL);
+		BOOL bReadOK = ReadFile(Handle_Com, read_buf, 256, &dwRead, NULL);
 		if (bReadOK && (dwRead > 0))
 		{
 			read_buf[dwRead] = '\0';
@@ -170,7 +168,7 @@ int test(void)
 		else
 			cout << "loss" << endl;
 	}
-	CloseHandle(H_Com);
+	CloseHandle(Handle_Com);
 	getchar();
 	return 0;
 }