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Stara 27.2.2014, 15:17   #1
Karza
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Član od: 26.2.2014.
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Određen forumom Pomoc C

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




HANDLE hCom;

HANDLE rs_initialise (int io_port, const long int BaudRate, const char parity, const char data)
{
BOOL bPortReady;
DCB dcb;
char ComPortName[]="COM1";
ComPortName[3]='0'+io_port;
hCom =CreateFile(ComPortName, GENERIC_READ | GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL);


if ((int)hCom <= 0)
{
printf("serial port COM%d connect fail %s error %d\n\r", io_port, ComPortName, GetLastError());
return 0;
}
//else printf(" serial port COM%d connect OK \n\r", io_port);

bPortReady = SetupComm(hCom, 2, 128); // set buffer sizes
if (!bPortReady )
{
printf("serial port COM%d SetupComm fail %d\n\r", io_port, GetLastError());
return 0;
}
//else printf(" serial port COM%d connect OK \n\r", io_port);

bPortReady = GetCommState(hCom, &dcb);
if (!bPortReady )
{
printf("serial port COM%d GetCommState fail %d\n\r", io_port, GetLastError());
return 0;
}
// else printf(" serial port COM%d connect OK \n\r", io_port);
dcb.BaudRate = BaudRate;
if( data == '7') dcb.ByteSize = 7;
else dcb.ByteSize = 8;
if( parity == 'E') dcb.Parity = EVENPARITY;
if( parity == 'O') dcb.Parity = ODDPARITY;
else dcb.Parity = NOPARITY;
dcb.StopBits = ONESTOPBIT;
dcb.fAbortOnError = TRUE;

// set XON/XOFF
dcb.fOutX = FALSE; // XON/XOFF off for transmit
dcb.fInX = FALSE; // XON/XOFF off for receive
// set RTSCTS
dcb.fOutxCtsFlow = FALSE; // turn off CTS flow control
dcb.fRtsControl = FALSE; // RTS_CONTROL_HANDSHAKE; //
// set DSRDTR
dcb.fOutxDsrFlow = FALSE; // turn off DSR flow control
//dcb.fDtrControl = DTR_CONTROL_ENABLE; // DTR handshake
dcb.fDtrControl = DTR_CONTROL_DISABLE; //
// dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; //

bPortReady = SetCommState(hCom, &dcb);
if (!bPortReady )
{
printf("serial port COM%d SetCommState fail %d\n\r", io_port, GetLastError());
return 0;
}

// Communication timeouts
COMMTIMEOUTS CommTimeouts;
bPortReady = GetCommTimeouts (hCom, &CommTimeouts);
CommTimeouts.ReadIntervalTimeout = 5 ;
CommTimeouts.ReadTotalTimeoutConstant = 5 ;
CommTimeouts.ReadTotalTimeoutMultiplier = 1 ;
CommTimeouts.WriteTotalTimeoutConstant = 5 ;
CommTimeouts.WriteTotalTimeoutMultiplier = 1 ;
bPortReady = SetCommTimeouts (hCom, &CommTimeouts);
if (!bPortReady )
{
printf("serial port COM%d SetCommTimeouts fail %d\n\r", io_port, GetLastError());
return 0;
}
else printf(" serial port COM%d connect OK \n\r", io_port);
return hCom;
}


/*----------------------------------------------------------------------------*
* Serial port: terminate io_port, sets DTR and RTS to low */
void rs_terminate(const int io_port)
{
// Close(hCom);
}



/*----------------------------------------------------------------------------*
* Serial port: read character from io_port (ignored in this version) */
char rs_getch(const int io_port)
{
char rxchar;
BOOL bReadRC;
static DWORD iBytesRead;
bReadRC = ReadFile(hCom, &rxchar, 1, &iBytesRead, NULL);
if (iBytesRead) return rxchar;
else return 0; // return 0 if no character read
}


/*----------------------------------------------------------------------------*
* Serial port: transmit character to io_port */
void rs_putch(const int io_port, const int txchar)
{
BOOL bWriteRC;
static DWORD iBytesWritten;
bWriteRC = WriteFile(hCom, &txchar, 1, &iBytesWritten,NULL);
return;
}


void rs_putstring(const int io_port, const char *string)
{
while (*string != '\0')
rs_putch(io_port, *string++);
}

//#include <conio.h>

int main()
{
int port = 1;

if(!rs_initialise(port ,57600, '8', 'N'))
{
getch();
exit(1);
}
char letter;
while(1)
{
if (kbhit()) rs_putch(port, getche());
if((letter=rs_getch(port))>0)
{
putchar(letter);
if(letter) putchar('\n');
}
}
getch();
return 0;

}


U ovom kodu trebam da ubacim samo dva bar koda koja ce da ocitava bar kod ako neko zna molim za pomoc
Karza je offline   Odgovor sa citatom ove poruke
Stara 28.2.2014, 23:42   #2
PeTkO
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Član od: 6.11.2005.
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Određen forumom Re: Pomoc C

Rado bi ti pomogao, al' prvo si mi dao 100 linija koda da desifrujem sta je sta, bez komentara, a pored toga nisi kod cak ni stavio u [code] tag kako bi bio pregledniji. Ajde izvuci deo koda koji ti pravi problem, pa da probamo da resimo to
PeTkO je offline   Odgovor sa citatom ove poruke
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