ATMEGA 8535 Buzzer Program Using External Switch

In the previous post mentioned about switch (Developer board configuration),that board have four switch and four led
1.sw1

2.sw2

3.sw3

4.sw4

After executing program “buzzer will produce sound while pressing s1″

PROGRAM:

#include<avr/io.h>        //This is the header for AVR Microcontroller.

int main(void)
 {    
    PORTC=0X00;            //PortC initiallization as all bits low.
    DDRC=0X08;            //PortC data direction declaration as output.
    
    PORTA=0XFF;            //PortA initiallization as all bits high (Pull-up Mode).
    DDRA=0X00;            //PortA data direction declaration as input.
    
    while(1)            //This is for the the infinity loop.
    {    
        if((PINA & 0x10)==0x00)            //checking for switch press at s1.
        {
            PORTC=0x08;                     //BZ ON
        }
        else
            PORTC=0x00;                        //BZ OFF
    }
}

BY

SARANKUMAR

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