From:	"Denys Redon" <denys DOT redon AT free DOT fr>
Newsgroups:	comp.os.msdos.djgpp
Subject:	serial port
Date:	Tue, 16 Jul 2002 20:13:05 +0200
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To:	djgpp AT delorie DOT com
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I try to put on a del with the serial port with this programm but it doesn't
work, why?

#include <stdio.h>
#include <conio.h>
#include <pc.h>
/////////////////////
#define COM1 0x3F8
/////////////////////
#define COMx COM1
#define TxD COMx
#define RxD COMx
#define DLLB COMx
#define IER (COMx+1)
#define DLHB (COMx+1)
#define IIR (COMx+2)
#define FCR (COMx+2)
#define LCR (COMx+3)
#define MCR (COMx+4)
#define LSR (COMx+5)
#define MSR (COMx+6)



void initia(void);
void Init_COM1(void);

int main (void)
    {
        initia();
        getch();
        return(0);
    }

void initia(void)
    {
        printf("\n-DEBUT-\n");
        Init_COM1();
        outportb(COM1+4,0x02);
    }

 void Init_COM1(void)
    {
          outportb(LCR,0x80); // DLAB = 1
          // 9600 bauds
          outportb(DLLB,0x0C); // Vitesse adresse basse
          outportb(DLHB,0x00); // Vitesse adresse haute
          outportb(LCR,0x07);
    }

- Raw text -