PC to PC Communication using RS-232

PC to PC Communication using RS-232

/*Aim: PC to PC Communication using RS-232 in 'C'. */

#include

#include

#define COM1 0

#define DATA_READY 0x100

#define SETTINGS ( 0x80 | 0x02 | 0x00 | 0x00)

int main(void)

{

int in, out, status;

bioscom(0, SETTINGS, COM1); /*initialize the port*/

cprintf("Data sent to you: ");

while (1)

{

status = bioscom(3, 0, COM1); /*wait until get a data*/

if (status & DATA_READY)

if ((out = bioscom(2, 0, COM1) & 0x7F) != 0) /*input a data*/

putch(out);

if (kbhit())

{

if ((in = getch()) == 27) /* ASCII of Esc*/

break;

bioscom(1, in, COM1); /*output a data*/

}

}

return 0;

}

/* OUTPUT:-

Data sent to you: HI...how are you??

*/

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