Aplikasi Running LED pada Sasakala-M32 Board

Sasakala Board-M32 telah disertai dengan built-in default application, berupa aplikasi Running LED serta aplikasi Serial RS232 Terminal.

Untuk mencoba aplikasi Running LED, terlebih dahulu harus dipersiapkan komponen tambahan berupa 8 buah LED dan 8 buah resistor 470 ohm disamping breadboard dan kabel jumpernya.

Konfigurasi rangkaiannya adalah sebagai berikut :

Klik disini untuk memperbesar gambar

Jika ingin mengubah tampilan, berikut kode programnya:

/*
    == AVR-Sasakala - Port I/O Demo ==
************************************************

Hardware:
    - [Sasakala-M32 Board]
    - LED 8x
     - Resistor 470R 8x

************************************************
        Embedtronix (C)201009
*/

#include <avr io.h>
#include <inttypes.h>
#include <util delay.h>


// Input/Output Ports initialization
void InitPort()
{
    // Port A initialization
    PORTA=0x0F;     // Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 
    DDRA=0xFF;      // State7=0 State6=0 State5=0 State4=0 State3=1 State2=1 State1=1 State0=1 

    // Port B initialization
    PORTB=0x0F;     // Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 
    DDRB=0xFF;      // State7=0 State6=0 State5=0 State4=0 State3=1 State2=1 State1=1 State0=1 

    // Port C initialization
    PORTC=0x0F;     // Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 
    DDRC=0xFF;      // State7=0 State6=0 State5=0 State4=0 State3=1 State2=1 State1=1 State0=1 

    // Port D initialization
    PORTD=0x0F;     // Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 
    DDRD=0xFF;      // State7=0 State6=0 State5=0 State4=0 State3=1 State2=1 State1=1 State0=1 
}

void main()
{

    InitPort();

    while(1)
    {
           unsigned char j;                    // LED var 
        
        for (j=0x01; j< 0x80; j<<=1)  
           {                                      // Blink LED 0,1,2,3,4,5,6
               PORTA = j;                      // Output to LED Port
        PORTB = j;                      // Output to LED Port
        PORTC = j;                      // Output to LED Port
        PORTD = j;                      // Output to LED Port
        _delay_ms(750);                 // Delay for 750 Counts 
           }

           for (j=0x80; j> 0x01; j>>=1)  
           {                                     // Blink LED 6,5,4,3,2,1,0 
               PORTD = j;                      // Output to LED Port 
               PORTB = j;                      // Output to LED Port 
               PORTC = j;                      // Output to LED Port 
               PORTD = j;                      // Output to LED Port 
               _delay_ms(750);                 // call wait function 
    }
}

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Selamat mencoba ..!