Microcontroller Projects

place-data-in-specific-ram-address.c

/* 
 * File:   code.c
 * Author: Usman Ali Butt
 * Property off: www.microcontroller-project.com
 * Created on 19 March, 2017, 3:38 PM
 */

// PIC16F877 Configuration Bit Settings
// 'C' source line config statements
#include <xc.h>
// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
// CONFIG
#pragma config FOSC = EXTRC     // Oscillator Selection bits (RC oscillator)
#pragma config WDTE = OFF       // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = OFF      // Power-up Timer Enable bit (PWRT disabled)
#pragma config CP = OFF         // FLASH Program Memory Code Protection bits (Code protection off)
#pragma config BOREN = ON       // Brown-out Reset Enable bit (BOR enabled)
#pragma config LVP = ON         // Low Voltage In-Circuit Serial Programming Enable bit 
                                //(RB3/PGM pin has PGM function; low-voltage programming enabled)
#pragma config CPD = OFF        // Data EE Memory Code Protection (Code Protection off)
// FLASH Program Memory Write Enable (Unprotected program memory may be written to by EECON control)
#pragma config WRT = ON         

#include <stdio.h>
#include <stdlib.h>
#include <pic16f877.h>

int ramloc1 @ 0x70;     //Reserve ram address for variable ramloc1
int ramloc2 @ 0x71;     //Reserve ram address for variable ramloc2
int ramloc3 @ 0x72;     //Reserve ram address for variable ramloc3


int main(int argc, char** argv) {//Program memory Address specified

    ramloc1=0x45;        //Store hex value all ram address 0x70
    ramloc2=0x22;        //Store hex value all ram address 0x71
    ramloc3=0x34;        //Store hex value all ram address 0x72
for(int i=0;i<1000;i++){
    for(int j=0;j<10000;j++);
}

    return (EXIT_SUCCESS);
}