led.c

在AT91sam7SE上

//VmLed.c

#include	"Preprocess.h"
#include	"Led.h"



VOID	LedInit(VOID){
    AT91F_PMC_EnablePeriphClock ( AT91C_BASE_PMC, 1 << LED_ID ) ;
    AT91F_PIO_CfgOutput( LED_BASE, LED_MASK ) ;
	LedSetLevel(HIGH);
}


LEVEL	LedGetLevel(VOID){
	if(LED_MASK == (AT91F_PIO_GetInput(LED_BASE) & LED_MASK)){
		return(HIGH);
	}else{
		return(LOW);
	}
}


VOID	LedSetLevel(LEVEL lvLevel){
	if(HIGH == lvLevel){
	 	AT91F_PIO_SetOutput( LED_BASE, LED_MASK ) ;
	}else{
		AT91F_PIO_ClearOutput( LED_BASE, LED_MASK );
	
	}
}//VOID	LedSetLevel(LEVEL lvLevel){