led.c

IAR下LED代码

#include<iolpc2148.h>
//#include"led.h"
void Delay(unsigned long a)
{
  while (--a!=0);
}
void LedsInit(void)
{
 // PINSEL1=Ox00000000;//引脚功能选择位
  IO0DIR_bit.P0_31=1;
  IO0DIR_bit.P0_13=1;
}
void LedsBlink(void)
{
 IO0CLR_bit.P0_31=1;
 IO0CLR_bit.P0_14=1;
 Delay(50000);
 IO0SET_bit.P0_31=1;
 IO0SET_bit.P0_14=1;
 Delay(50000);
}