hjmcu.c

很实用的单片机例程

/**************************************************************************************************
*** 慧净电子1天入门、10天学会、1年精通单片机与C语言视频教程配套程序源码                         ***
*** 实验板：HJ-1G HJ-3G 开发板                                                                      ***
*** MCU: STC89C52/AT89C52  部分C源码可以直接用于项目开发、欢迎复制共享、功德无量、没有版权      ***
*** 收集整理：慧净助学会员  部分原源来源网络，如有伤害到你的利润请来信，我们的免费助学会员会定期给你删除***
*** 编译器：KEIL                                                                                ***
*** 百度交流空间：http://hi.baidu.com/HJMCU      WWW.HJMCU.COM                                  ***
*** 论坛交流：http://bbs.hjmcu.com   欢迎来论坛一分钱不要下载配套的仿真电路                     ***
*** 配套的硬件学习板网址：http://shop37031453.taobao.com/                                       ***
*** 日期：2008.8.8                                                                              ***
*** 目标：用C语言写程序就这么简单、慧争祝你1天入门、10天学会、1年精通单片机与C语言、找个好工作  ***
***************************************************************************************************/
#include "reg52.h"
unsigned char Count;
sbit _Speak =P2^3 ;			//讯响器控制脚　

unsigned char code SONG[] ={      //祝你平安
0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20,
0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20,
0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10,
0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20,
0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20,
0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20,
0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10,
0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80,
0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20,
0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x20,
0x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10,
0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00,
                                  //路边的野华不要采
0x30,0x1C,0x10,0x20,0x40,0x1C,0x10,0x18,0x10,0x20,0x10,0x1C,0x10,0x18,0x40,0x1C,
0x20,0x20,0x20,0x1C,0x20,0x18,0x20,0x20,0x80,0xFF,0x20,0x30,0x1C,0x10,0x18,0x20,
0x15,0x20,0x1C,0x20,0x20,0x20,0x26,0x40,0x20,0x20,0x2B,0x20,0x26,0x20,0x20,0x20,
0x30,0x80,0xFF,0x20,0x20,0x1C,0x10,0x18,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,
0x20,0x2B,0x40,0x20,0x20,0x1C,0x10,0x18,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,
0x20,0x2B,0x40,0x20,0x30,0x1C,0x10,0x18,0x20,0x15,0x20,0x1C,0x20,0x20,0x20,0x26,
0x40,0x20,0x20,0x2B,0x20,0x26,0x20,0x20,0x20,0x30,0x80,0x20,0x30,0x1C,0x10,0x20,
0x10,0x1C,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,0x20,0x2B,0x40,0x20,0x15,0x1F,
0x05,0x20,0x10,0x1C,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,0x20,0x2B,0x40,0x20,
0x30,0x1C,0x10,0x18,0x20,0x15,0x20,0x1C,0x20,0x20,0x20,0x26,0x40,0x20,0x20,0x2B,
0x20,0x26,0x20,0x20,0x20,0x30,0x30,0x20,0x30,0x1C,0x10,0x18,0x40,0x1C,0x20,0x20,
0x20,0x26,0x40,0x13,0x60,0x18,0x20,0x15,0x40,0x13,0x40,0x18,0x80,0x00,

};

void Time0_Init()
{
	TMOD = 0x01;
	IE 	 = 0x82;
	TH0  = 0xD8;
	TL0  = 0xEF;		//12MZ晶振，10ms
}

void Time0_Int() interrupt 1
{
	TH0 = 0xD8;
	TL0 = 0xEF;
	Count++;			//长度加1
}

/*-------------------------------------------------
功能:1MS延时子程序
-------------------------------------------------*/
void Delay_xMs(unsigned int x)
{
    unsigned int i,j;
    for( i =0;i < x;i++ )
    {
        for( j =0;j<3;j++ );
    }
}

/*-------------------------------------------------
功能:歌曲播放子程序i为播放哪一段曲目
-------------------------------------------------*/
void Play_Song(unsigned char i)
{
	unsigned char Temp1,Temp2;
	unsigned int Addr;
	Count = 0;						//中断计数器清0
	Addr = i * 217;
	while(1)
	{
		Temp1 = SONG[Addr++];
	    if ( Temp1 == 0xFF )          //休止符
	    {
	    	TR0 = 0;
	    	Delay_xMs(100);
	    }
	    else if ( Temp1 == 0x00 )	  //歌曲结束符
	    {
	    	return;
	    }
	    else
	    {
	    	Temp2 = SONG[Addr++];
	    	TR0 = 1;
	  		while(1)
	  		{
	    		_Speak = ~_Speak;
	    		Delay_xMs(Temp1);
	    		if ( Temp2 == Count )
	    		{
	    			Count = 0;
	    			break;
	    		}
	    	}
	    }
	}
}
/*-------------------------------------------------
功能:主程序
-------------------------------------------------*/
void main()
{
	Time0_Init();			//定时器0中断初始化
	while(1)
	{
		Play_Song(0);		//播放
	}
}