main.c

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#include <stdio.h>
#include <pic.h>
#include "usart.h"

/* A simple demonstration of serial communications which
 * incorporates the on-board hardware USART of the Microchip
 * PIC16Fxxx series of devices. */

void main(void){
	unsigned char input;

	INTCON=0;	// purpose of disabling the interrupts.

	init_comms();	// set up the USART - settings defined in usart.h

	// Output a message to prompt the user for a keypress	
	printf("\rPress a key and I will echo it back:\n");
	while(1){
		input = getch();	// read a response from the user
		printf("\rI detected [%c]",input);	// echo it back
	}
}