PIC16F877A - Knight Rider scanner bar

PIC16F877A_KnightRider_scanner.c

/* 
 * File: KnightRider.c
 * Author: Matt Rude <matt@mattrude.com>
 *
 * Created on February 4, 2022, 6:33 PM
 */

#define _XTAL_FREQ 4000000

#pragma config FOSC = HS
#pragma config WDTE = OFF
#pragma config PWRTE = OFF
#pragma config BOREN = ON
#pragma config LVP = ON
#pragma config CPD = OFF
#pragma config WRT = OFF
#pragma config CP = OFF

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

int main(){
    TRISD0 = 0; // RB0 as Output PIN
    TRISD1 = 0; // RB1 as Output PIN
    TRISD2 = 0; // RB2 as Output PIN
    TRISD3 = 0; // RB3 as Output PIN
    TRISD4 = 0; // RB4 as Output PIN
    TRISD5 = 0; // RB5 as Output PIN
    TRISD6 = 0; // RB6 as Output PIN
    TRISD7 = 0; // RB7 as Output PIN

    RD0 = 1;  // LED OFF
    RD1 = 1;  // LED OFF
    RD2 = 1;  // LED OFF
    RD3 = 1;  // LED OFF
    RD4 = 1;  // LED OFF
    RD5 = 1;  // LED OFF
    RD6 = 1;  // LED OFF
    RD7 = 1;  // LED OFF
            
    while(1){
        RD0 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD0 = 1;  // LED OFF
        RD1 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD1 = 1;  // LED OFF
        RD2 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD2 = 1;  // LED OFF
        RD3 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD3 = 1;  // LED OFF
        RD4 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD4 = 1;  // LED OFF
        RD5 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD5 = 1;  // LED OFF
        RD6 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD6 = 1;  // LED OFF
        RD7 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD7 = 1;  // LED OFF
        RD6 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD6 = 1;  // LED OFF
        RD5 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD5 = 1;  // LED OFF
        RD4 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD4 = 1;  // LED OFF
        RD3 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD3 = 1;  // LED OFF
        RD2 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD2 = 1;  // LED OFF
        RD1 = 0;  // LED ON
        __delay_ms(500); // 1 Second Delay
        RD1 = 1;  // LED OFF
    }
    return 0;
}