How to read RS232 ?

Thank you.

I finally solved it with my collegue which advice me to add command

stty -F /dev/ttyS3 sane -echo -icanon

to rc file. This command stop the echo of input characters.

And after open command in program i use:

void init_rs232(void)

{

struct termios options;

fd = open(S0_232, O_RDWR | O_NOCTTY | O_NDELAY );

if (fd > 0)

{ fcntl(fd, F_SETFL, O_NONBLOCK);

tcgetattr(fd, &options);

options.c_cflag |= (CLOCAL | CREAD | CS8 );

options.c_cc[VMIN] = 1;

options.c_cc[VTIME] = 0;

options.c_lflag = FLUSHO;

tcsetattr(fd, TCSANOW, &options);

printf("Init RS232 OK.\n");

}

}

and now it works well.

Jan Naceradsky