Serial communication using C++

Mon, 15 Nov 2010 14:33:39 -0700

I am using visual studio 10 but i am unable to send data through that code........... Can anyone tell me problem in that code

#include "stdafx.h"
#include<iostream>
#include <windows.h>
using namespace std;
bool WriteComPort(char data);

int main ()
{

char again;
do
{
char data;
bool check;
cout<<" Enter data to be send ";
cin>>data;
check=WriteComPort(data);
if(check==0)
cout<<"\nError occur... Data transmit not possible \n";
else
cout<<"Data successfully transmitted ";
cout<<" More data transmission require y or n \n";
cin>>again;
}
while (again=='y');
return 0;
}

bool WriteComPort( char data)
{
DCB dcb;
DWORD byteswritten;
HANDLE hPort = CreateFile("\\\\.\\COM11",GENERIC_WRITE,0,NULL,OPE N_EXISTING,0,NULL);
if (!GetCommState(hPort,&dcb))
return false;
dcb.BaudRate = CBR_9600; //9600 Baud
dcb.ByteSize = 8; //8 data bits
dcb.Parity = NOPARITY; //no parity
dcb.StopBits = ONESTOPBIT; //1 stop
if (!SetCommState(hPort,&dcb))
return false;
bool retVal = WriteFile(hPort,&data,1,&byteswritten,NULL);
CloseHandle(hPort); //close the handle
return retVal;
}

Re: Serial communication using C++

Thu, 17 Mar 2011 06:10:19 -0700

check the port existing, the program is working fine.

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Serial communication using C++

Re: Serial communication using C++