怎样用stc89c52单片机控制蜂鸣器发出音乐的c语言程序？

#include\r\n#include\r\n//本例采用89C52,晶振为11.0592MHZ\r\n//关于带橡碰如何编制音乐如陪代码,其实十分简单,各位可以看以下代码.\r\n//频率蠢谈常数即音乐术语中的音调,而节拍常数即音乐术语中的多少拍\r\n//所以拿出谱子,试探编吧!\r\nsbitBeep=P1^5\r\n\r\nunsignedcharn=0//n为节拍常数变量\r\nunsignedcharcodemusic_tab[]={\r\n0x18,0x30,0x1C,0x10,//格式为:频率常数,节拍常数,频率常数,节拍常数,\r\n0x20,0x40,0x1C,0x10,\r\n0x18,0x10,0x20,0x10,\r\n0x1C,0x10,0x18,0x40,\r\n0x1C,0x20,0x20,0x20,\r\n0x1C,0x20,0x18,0x20,\r\n0x20,0x80,0xFF,0x20,\r\n0x30,0x1C,0x10,0x18,\r\n0x20,0x15,0x20,0x1C,\r\n0x20,0x20,0x20,0x26,\r\n0x40,0x20,0x20,0x2B,\r\n0x20,0x26,0x20,0x20,\r\n0x20,0x30,0x80,0xFF,\r\n0x20,0x20,0x1C,0x10,\r\n0x18,0x10,0x20,0x20,\r\n0x26,0x20,0x2B,0x20,\r\n0x30,0x20,0x2B,0x40,\r\n0x20,0x20,0x1C,0x10,\r\n0x18,0x10,0x20,0x20,\r\n0x26,0x20,0x2B,0x20,\r\n0x30,0x20,0x2B,0x40,\r\n0x20,0x30,0x1C,0x10,\r\n0x18,0x20,0x15,0x20,\r\n0x1C,0x20,0x20,0x20,\r\n0x26,0x40,0x20,0x20,\r\n0x2B,0x20,0x26,0x20,\r\n0x20,0x20,0x30,0x80,\r\n0x20,0x30,0x1C,0x10,\r\n0x20,0x10,0x1C,0x10,\r\n0x20,0x20,0x26,0x20,\r\n0x2B,0x20,0x30,0x20,\r\n0x2B,0x40,0x20,0x15,\r\n0x1F,0x05,0x20,0x10,\r\n0x1C,0x10,0x20,0x20,\r\n0x26,0x20,0x2B,0x20,\r\n0x30,0x20,0x2B,0x40,\r\n0x20,0x30,0x1C,0x10,\r\n0x18,0x20,0x15,0x20,\r\n0x1C,0x20,0x20,0x20,\r\n0x26,0x40,0x20,0x20,\r\n0x2B,0x20,0x26,0x20,\r\n0x20,0x20,0x30,0x30,\r\n0x20,0x30,0x1C,0x10,\r\n0x18,0x40,0x1C,0x20,\r\n0x20,0x20,0x26,0x40,\r\n0x13,0x60,0x18,0x20,\r\n0x15,0x40,0x13,0x40,\r\n0x18,0x80,0x00\r\n}\r\n\r\nvoidint0()interrupt1//采用中断0控制节拍\r\n{TH0=0xd8\r\nTL0=0xef\r\nn--\r\n}\r\n\r\nvoiddelay(unsignedcharm)//控制频率延时\r\n{\r\nunsignedi=3*m\r\nwhile(--i)\r\n}\r\n\r\nvoiddelayms(unsignedchara)//豪秒延时子程序\r\n{\r\nwhile(--a)//采用while(--a)不要采用while(a--)各位可编译一下看看汇编结果就知道了!\r\n}\r\n\r\nvoidmain()\r\n{unsignedcharp,m//m为频率常数变量\r\nunsignedchari=0\r\nTMOD&=0x0f\r\nTMOD|=0x01\r\nTH0=0xd8TL0=0xef\r\nIE=0x82\r\nplay:\r\nwhile(1)\r\n{\r\na:p=music_tab[i]\r\nif(p==0x00){i=0,delayms(1000)gotoplay}//如果碰到结束符,延时1秒,回到开始再来一遍\r\nelseif(p==0xff){i=i+1delayms(100),TR0=0gotoa}//若碰到休止符,延时100ms,继续取下一音符\r\nelse{m=music_tab[i++],n=music_tab[i++]}//取频率常数和节拍常数\r\nTR0=1//开定时器1\r\nwhile(n!=0)Beep=~Beep,delay(m)//等待节拍完成,通过P1口输出音频(可多声道哦!)\r\nTR0=0//关定时器1\r\n}\r\n}\r\n\r\n你参考这个吧

#include<reg52.h>

sbit  beep=P0^4

void  main()

{ 

  

   beep=0

   while(1)

}

试试这个怎样，单片机在执行完程序之后会回到初始状态，然后再重新执行程序，所以蜂鸣器就会反复的开和关，如指渣听起来声音会小很多渣悄；加个while(1)死循逗野环，让程序一直保持在beep=0的状态。

让蜂鸣器发出两棚早种不同的声调很容易，瞎扮只要给蜂鸣器的控制信号发送不同频率的脉冲就可以实现了，以下以延时方式来做。

#include<reg51.h>

#define

uchar

unsigned

char

#define

uint

unsigned

int

sbit

SPK=P1^0

sbit

K1=P1^7

//发链神雀声函数

void

Alarm(uchar

t)

{

uchari,j

for(i=0i<200i++)

{

SPK=~SPK

for(j=0j<tj++)

//由参数t行成不同的频率

}

}

voidmain()

{

SPK=0

while(1)

{

if(K1==1)

{

Alarm(90)

Alarm(120)

}

}

}

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