xtest03_1.c

AT91sam7s 256 B/D example

/* ========================================================================== */
/*	  Xtest03_1.c : Access to Absolute Address of I/O Register(1)         */
/* ========================================================================== */
/*			  Designed and programmed by Duck-Yong Yoon in 2007.  */

#include "AT91SAM7S256.h"
#include "lib_AT91SAM7S256.h"
#include "OK7S256ads.h"

int main(void)
{
  MCU_initialize();				// initialize AT91SAM7S256 & kit

  while(1)
    { Beep();					// beep 

      AT91F_PIO_ClearOutput(AT91C_BASE_PIOA,PA0);     // PA0=0(LED1 on) 
      Delay_ms(1000);
      AT91F_PIO_SetOutput(AT91C_BASE_PIOA,PA0);       // PA0=1(LED1 off)
      Delay_ms(1000);
      
      AT91F_PIO_ClearOutput(AT91C_BASE_PIOA,PA1);     // PA1=0(LED2 on) 
      Delay_ms(1000);
      AT91F_PIO_SetOutput(AT91C_BASE_PIOA,PA1);       // PA1=1(LED2 off)
      Delay_ms(1000);
      
      AT91F_PIO_ClearOutput(AT91C_BASE_PIOA,PA1|PA0); // PA1=PA0=0(LED2 and LED1 on)
      Delay_ms(1000);
      AT91F_PIO_SetOutput(AT91C_BASE_PIOA,PA1|PA0);   // PA1=PA0=1(LED2 and LED1 off)
      Delay_ms(1000);
    }
}