Coaxial switch with remote control C++ example code

Coaxial switch with remote control C++ example code

Code can be compiled with wxDev C++
https://wxdsgn.sourceforge.net/

//****************************************************//
//        LinkBone test program example               //
//        Coaxial switch with remote control example   //
//        www.linkbone.com                            //
//****************************************************//

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <conio.h>

HANDLE connectToSwitch(char *com)
{
HANDLE port;
DCB portConfig;
char portName[32];
COMMTIMEOUTS timeout;

// open serial port
snprintf(portName,32, "\\\\.\\%s", com);

port=CreateFileA(portName, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
if (port == INVALID_HANDLE_VALUE)
{
printf("Cannot open COM port");
getch();
return INVALID_HANDLE_VALUE;
}

// set transmission parameters to coaxial switch with remote serial port
if (!GetCommState(port,&portConfig))
return INVALID_HANDLE_VALUE;

portConfig.BaudRate = CBR_9600;
portConfig.StopBits = ONESTOPBIT;
portConfig.Parity = NOPARITY;
portConfig.ByteSize = 8;

if (!SetCommState(port,&portConfig))
return INVALID_HANDLE_VALUE;

// set the read/write timeouts to serial port of coaxial switch
timeout.ReadIntervalTimeout = 1;
timeout.ReadTotalTimeoutMultiplier = 1;
timeout.ReadTotalTimeoutConstant = 1;
timeout.WriteTotalTimeoutMultiplier = 1;
timeout.WriteTotalTimeoutConstant = 1;

if (!SetCommTimeouts(port, &timeout))
return INVALID_HANDLE_VALUE;

return port;
}

void sendToSwitch(HANDLE port,char cmd[])
{
char bufferIn[100];
DWORD length, done=0;

// send data to serial port of coaxial switch
WriteFile(port, cmd, strlen(cmd),&length, NULL);
// wait for "Done." reply from coaxial switch
while(done<sizeof("Done.\n"))
{
ReadFile(port, bufferIn,sizeof(bufferIn),&length,NULL);
done+=length;
}
}

////////////////////////////////////////////////////////////
// the main test program using coaxial switch with remote //
////////////////////////////////////////////////////////////

int main(int argc, char *argv[])
{
//open to serial port connected to LinkBone coaxial switch
HANDLE port = connectToSwitch("COM4");
if (port==INVALID_HANDLE_VALUE) // if error exit the program
return 0;

//send control commands to LinkBone coaxial switch with remote control
sendToSwitch(port, "reset\n");
//multiplexer mode of switch box
sendToSwitch(port, "mode single\n");

//enable A input/output path
sendToSwitch(port, "on a\n");
//doSomething();

//enable B input/output path
sendToSwitch(port, "on b\n");
//doSomething();

//close the port serial connection to LinkBone coaxial switch with remote control
CloseHandle(port);
printf("Test script completed. Press an key to continue.\n");
getch();
return 0;
}

LinkBone