Support for RS232. Not all the platforms are supported, at the moment.

The following program requires a serial terminal connected to the serial port to test.

#include <stdio.h>
#include <stdlib.h>
#include <rs232.h>

char byte[1];
int f;

int main()
{
	printf ("%cChecking basic RS232 capabilities...\n",12);
	if (rs232_params(RS_BAUD_1200, RS_PAR_NONE) == RS_ERR_OK)
		printf ("  1200 baud, N, 8, 1\n");
	
	if (rs232_params(RS_BAUD_2400, RS_PAR_NONE) == RS_ERR_OK)
		printf ("  2400 baud, N, 8, 1\n");

	if (rs232_params(RS_BAUD_4800, RS_PAR_NONE) == RS_ERR_OK)
		printf ("  4800 baud, N, 8, 1\n");

	if (rs232_params(RS_BAUD_9600, RS_PAR_NONE) == RS_ERR_OK)
		printf ("  9600 baud, N, 8, 1\n");

	if (rs232_params(RS_BAUD_19200, RS_PAR_NONE) == RS_ERR_OK)
		printf ("  19200 baud, N, 8, 1\n");
		
	printf ("\nInitializing at 1200 baud:");
	if (rs232_params(RS_BAUD_1200, RS_PAR_NONE) != RS_ERR_OK) {
		printf ("  Error setting baud rate.  Exiting...\n");
		exit(0);
	}
	if (rs232_init() != RS_ERR_OK) {
		printf ("  Initialization error.  Exiting...\n");
		exit(0);
	}
	printf ("  Done.\n");


	rs232_put('-');
	rs232_put('>');
	
	printf ("\nEchoing 10 bytes to console: ");
	for (f=0; f<10; f++) {
		while (rs232_get(&byte[0]) != RS_ERR_OK);
		//printf ("%c",byte[0]);
		fputc_cons (byte[0]);
	}

	rs232_put('.');

	printf ("\n\nClosing RS232 port:\n");
	if (rs232_close() != RS_ERR_OK) {
		printf ("  Error.  Exiting...\n");
		exit(0);
	}
}