ARM main 소스
//#include "myAT91SAM7S256.h"
#include "AT91SAM7S256.h"
int main()
{
/*
//직접 만든 경우 --------------------------------------------------
PMC_PCER = (1<<2);
PIO_PDR = 0xFFFFFFFF;
PIO_PER = PA0|PA1; // Port Enable PA0~1
PIO_OER = PA1; // PA1 is Output
PIO_ODR = PA0; // PA0 is Input
*/
/*
//헤더에서 구조체를 사용한 경우 -----------------------------------
AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_PIOA);
AT91C_BASE_PIOA->PIO_PDR = 0xFFFFFFFF;
AT91C_BASE_PIOA->PIO_PER = AT91C_PIO_PA0 | AT91C_PIO_PA1;
AT91C_BASE_PIOA->PIO_OER = AT91C_PIO_PA1;
AT91C_BASE_PIOA->PIO_ODR = AT91C_PIO_PA0;
*/
//헤더에서 선언된 주소를 사용한 경우 ------------------------------
*AT91C_PMC_PCER = (1 << AT91C_ID_PIOA);
*AT91C_PIOA_PDR = 0xFFFFFFFF;
*AT91C_PIOA_PER = AT91C_PIO_PA0 | AT91C_PIO_PA1;
*AT91C_PIOA_OER = AT91C_PIO_PA1;
*AT91C_PIOA_ODR = AT91C_PIO_PA0;
while (1)
{
/*
//직접 만든 경우 --------------------------------------------------
if((PIO_PDSR & PA0)) // if PA0 were Hi
PIO_SODR = 2; // then PA1 out is Hi
else // if PA0 were Lo
PIO_CODR = 2; // then PA1 out is Lo
*/
/*
//헤더에서 구조체를 사용한 경우 ------------------------------------
if(AT91C_PIO_PA0 == (AT91C_BASE_PIOA->PIO_PDSR & AT91C_PIO_PA0 )) // if PA0 were Hi
{
AT91C_BASE_PIOA->PIO_SODR = AT91C_PIO_PA1; // then PA1 out is Hi
}
else // if PA0 were Lo
{
AT91C_BASE_PIOA->PIO_CODR = AT91C_PIO_PA1; // then PA1 out is Lo
}
*/
//헤더에서 선언된 주소를 사용한 경우 -------------------------------
if(AT91C_PIO_PA0 == (*AT91C_PIOA_PDSR & AT91C_PIO_PA0 )) // if PA0 were Hi
{
*AT91C_PIOA_SODR = AT91C_PIO_PA1; // then PA1 out is Hi
}
else // if PA0 were Lo
{
*AT91C_PIOA_CODR = AT91C_PIO_PA1; // then PA1 out is Lo
}
}
return 0;
}