BÀI 7 : ĐẾM TỪ 0 ĐẾN 99 PIC18F4550 XC8

- Đây là ảnh mô phỏng protues.

- Đây là code chương trình.

#include <xc.h>
#include <stdio.h>
#include <stdlib.h>
#define _XTAL_FREQ 8000000
// CONFIG1L
#pragma config PLLDIV = 2       // PLL Prescaler Selection bits (Divide by 2 (8 MHz oscillator input))
#pragma config CPUDIV = OSC1_PLL2// System Clock Postscaler Selection bits ([Primary Oscillator Src: /1][96 MHz PLL Src: /2])
#pragma config USBDIV = 1       // USB Clock Selection bit (used in Full-Speed USB mode only; UCFG:FSEN = 1) (USB clock source comes directly from the primary oscillator block with no postscale)

// CONFIG1H
#pragma config FOSC = HS     // Oscillator Selection bits (EC oscillator, CLKO function on RA6 (EC))
#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor Enable bit (Fail-Safe Clock Monitor disabled)
#pragma config IESO = OFF       // Internal/External Oscillator Switchover bit (Oscillator Switchover mode disabled)

// CONFIG2L
#pragma config PWRT = OFF       // Power-up Timer Enable bit (PWRT disabled)
#pragma config BOR = OFF        // Brown-out Reset Enable bits (Brown-out Reset disabled in hardware and software)
#pragma config BORV = 21        // Brown-out Reset Voltage bits (2.1V)
#pragma config VREGEN = OFF     // USB Voltage Regulator Enable bit (USB voltage regulator disabled)

// CONFIG2H
#pragma config WDT = OFF        // Watchdog Timer Enable bit (WDT disabled (control is placed on the SWDTEN bit))
#pragma config WDTPS = 32768    // Watchdog Timer Postscale Select bits (1:32768)

// CONFIG3H
#pragma config PBADEN = OFF     // PORTB A/D Enable bit (PORTB<4:0> pins are configured as digital I/O on Reset)
#pragma config LPT1OSC = OFF    // Low-Power Timer 1 Oscillator Enable bit (Timer1 configured for higher power operation)
#pragma config MCLRE = OFF      // MCLR Pin Enable bit (RE3 input pin enabled; MCLR pin disabled)

// CONFIG4L
#pragma config STVREN = OFF     // Stack Full/Underflow Reset Enable bit (Stack full/underflow will not cause Reset)
#pragma config LVP = OFF        // Single-Supply ICSP Enable bit (Single-Supply ICSP disabled)
#pragma config BBSIZ = BB1K     // Boot Block Size Select bit (1KW Boot block size)
#pragma config ICPRT = OFF      // Dedicated In-Circuit Debug/Programming Port (ICPORT) Enable bit (ICPORT disabled)
#pragma config XINST = OFF      // Extended Instruction Set Enable bit (Instruction set extension and Indexed Addressing mode disabled (Legacy mode))

// CONFIG5L
#pragma config CP0 = OFF        // Code Protection bit (Block 0 (000800-001FFFh) or (001000-001FFFh) is not code-protected)
#pragma config CP1 = OFF        // Code Protection bit (Block 1 (002000-003FFFh) is not code-protected)

// CONFIG5H
#pragma config CPB = OFF        // Boot Block Code Protection bit (Boot block (000000-0007FFh) or (000000-000FFFh) is not code-protected)

// CONFIG6L
#pragma config WRT0 = OFF       // Write Protection bit (Block 0 (000800-001FFFh) or (001000-001FFFh) is not write-protected)
#pragma config WRT1 = OFF       // Write Protection bit (Block 1 (002000-003FFFh) is not write-protected)

// CONFIG6H
#pragma config WRTC = OFF       // Configuration Register Write Protection bit (Configuration registers (300000-3000FFh) are not write-protected)
#pragma config WRTB = OFF       // Boot Block Write Protection bit (Boot block (000000-0007FFh) or (000000-000FFFh) is not write-protected)

// CONFIG7L
#pragma config EBTR0 = OFF      // Table Read Protection bit (Block 0 (000800-001FFFh) or (001000-001FFFh) is not protected from table reads executed in other blocks)
#pragma config EBTR1 = OFF      // Table Read Protection bit (Block 1 (002000-003FFFh) is not protected from table reads executed in other blocks)

// CONFIG7H
#pragma config EBTRB = OFF      // Boot Block Table Read Protection bit (Boot block (000000-0007FFh) or (000000-000FFFh) is not protected from table reads executed in other blocks)

const unsigned char Code7Seg[] = {0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82,0xF8, 0x80, 0x90};
unsigned int count=0;
unsigned int chuc,donvi;
void display(unsigned count);
void main (void)
{
    TRISD = 0X00;
    PORTD = 0XFF;
    TRISAbits.TRISA0 = 0;
    TRISAbits.TRISA1 = 0;
    ADCON1 = 0x0F; 
    while(1)
    {
        display(count);
        count++;
        if(count==100)
        {
            count = 0;
        }
    }
}
void display (unsigned int count)
{
        chuc = count/10;
        donvi = count%10;
        
        PORTAbits.RA0 = 0;
        PORTD = Code7Seg[donvi];
        __delay_ms(50);
        PORTAbits.RA0 = 1;
        
        PORTAbits.RA1 = 0;
        PORTD = Code7Seg[chuc];
        __delay_ms(50);
        PORTAbits.RA1 = 1;

}

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Author : Huỳnh Ngọc Lâm

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