AVR Atmega16 Bật Tắt LED Bằng Nút Nhấn - CodeVision

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Code

Chip type               : ATmega16
Program type            : Application
AVR Core Clock frequency: 8,000000 MHz
Memory model            : Small
External RAM size       : 0
Data Stack size         : 256
 
#include <mega16.h>
#include <delay.h>
#define BT PINA.1
 
void main(void)
{
    DDRA = 0b11111101;    // 1:out,0:in
    PORTA = 0b00000010;   // 1:high,0:low
while (1)
      {
          if(BT==0)
          {
            PORTA.0=~PORTA.0;
            while(BT==0);  
          }
      }
}

Demo: