x102_sound.c

该文件中包括89系列 X102开发板的12232液晶屏AD转换器ADC0809,DA转换器DAC0832,I2C总线芯片24C02,RAM电路62256,发光二极管电路

#include <reg52.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <absacc.h>

#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long

sbit sound=P1^5;

void delay(uchar delay_temp);//长延时

main(void)
{
start:	sound=0;//鸣响第一次
       	delay(0xff);
       	sound=1;
       	delay(0xff);
       	sound=0;//鸣响第二次
       	delay(0x7f);
       	sound=1;
       	delay(0xff);
       	sound=0;//鸣响第三次
       	delay(0x3f);
       	sound=1;
       	delay(0xff);
	goto start;	
}

void delay(uchar delay_temp)//延时子程序
{
	uchar i,j;
	for(i=0;i<delay_temp;i++)
	{
		for(j=0;j<255;j++);
	}
}