beep.c

LPC2134的bootloader , 请用ADS查看地址设定。

typedef  unsigned char uchar;
typedef  unsigned int uint;

#include "LPC2294.h"
#include "pin.h"
#include "Pubfunc.h"
#include "beep.h"

void ClearBeep()
{
	IO0SET = FM1;
}

void Beep(uchar count)
{
    uchar i;
    IO0SET = FM1;  //CLEAR
    
    for(i = 0; i < count; i++)
    {
    	IO0CLR = FM1;  //SET
    	DelayMs(70);
     	IO0SET = FM1;
     	DelayMs(70);
    }
	return;
}