求助大神，这个单片机驱动蜂鸣器唱歌程序为什么不能发声音? -

#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit key1=P3^2;//按key1可切换下一曲
sbit key2=P3^3;//按key2可切换上一曲
sbit speaker=P3^7;//扬声器输出口
char count;//歌曲标志
uchar timeh,timel,i,k=0,counter=0;//用到的各个变量
uchar code graph[] = //8*8点阵动态图数据
{
0x00,0x82,0x82,0x86,0xA6,0xB7,0xFF,0xFF,
0x00,0x00,0x00,0x10,0x12,0x9B,0xBF,0xFF,
0x00,0x00,0x00,0x80,0xCA,0xEE,0xFF,0xFF,
0x42,0x42,0x52,0x52,0x73,0x7B,0xFB,0xFF,
0x42,0x42,0x66,0x76,0xFE,0xFF,0xFF,0xFF,
0x04,0x04,0x44,0x4E,0x4E,0x7F,0xFF,0xFF,
0x08,0x88,0x8A,0x8E,0xAE,0xFF,0xFF,0xFF,
0x10,0x10,0x12,0x1A,0x1A,0x9B,0xFF,0xFF,
};
//————————————寂寞沙洲冷————————————//
uchar code jmszl[]={
0x12,0x12,0x22,0x32,0x31,0x22,0x21,0x22,
//自你走后心憔悴
0x21,0x31,0x51,0x52,0x31,0x52,0x61,0x15,0x14,
//白色油桐风中纷飞
0x51,0x52,0x31,0x52,0x62,0x13,0x11,0x13,0x32,0x28,0x08,0x28,
//落花似人有情这个季节
0x31,0x32,0x31,0x32,0x11,0x21,0x51,0x52,0x51,0x52,
//河畔的风放肆拼命地吹
0x51,0x51,0x31,0x32,0x31,0x32,0x81,0x72,0x63,
//不断拨弄离人的眼泪
0x62,0x71,0x81,0x72,0x61,0x61,0x52,0x31,0x21,0x32,0x51,0x54,
//那样浓烈的爱再也无法给
0x22,0x12,0x11,0x12,0x11,0x12,0x12,0x14,0x26,0x32,0x26,
//伤感一夜一夜
0x32,0x61,0x51,0x51,0x31,0x31,0x21,0x31,0x51,0x61,0x51,0x31,0x51,
//当记忆的线缠绕过往支离破碎
0x02,0x32,0x81,0x81,0x81,0x81,0x62,0x52,0x34,
//是慌乱占据了心扉
0x31,0x81,0x81,0x81,0x61,0x91,0x82,
//有花儿伴着蝴蝶
0x51,0x51,0x51,0x51,0x31,0x61,0x53,
//孤雁可以双飞
0x21,0x11,0x21,0x11,0x22,0x11,0x21,0x26,
//夜深人静独徘徊
0x32,0x61,0x51,0x51,0x31,0x31,0x21,0x31,0x51,0x61,0x51,0x31,0x51,0x52,
//当幸福恋人寄来红色分享喜悦
0x31,0x31,0x81,0x81,0x81,0x61,0x91,0x81,0x61,0x31,0x56,
//闭上双眼难过头也不敢回
0x32,0x32,0x81,0x81,0x81,0x81,0x91,0x81,0x61,0x81,0x61,0x51,0x31,0x51,0x34,
//仍然捡尽寒枝不肯安歇微带着后悔
0x21,0x31,0x51,0x31,0x21,0x11,0x61,0x21,0x16,0xff
//寂寞沙洲我该思念谁
};
//—————————————————劳动最光荣———————————————————//
uchar code ldzgr[]=
{
0x52,0x82,0x82,0x52,0x62,0x62,0x54,0x32,0x52,0x12,0x32,0x28,
//太阳光，金亮亮，雄鸡唱三唱；
0x52,0x84,0x52,0x62,0x62,0x54,0x52,0x81,0xA1,0x92,0x52,0x88,
//花儿醒来了，鸟儿忙梳妆
0x83,0x91,0x82,0x52,0x62,0x62,0x54,0x33,0x81,0x62,0x52,0x12,0x32,0x24,
//小喜鹊造新房，小蜜蜂采蜜糖
0x12,0x11,0x21,0x32,0x51,0x51,0x62,0x52,0x84,0x82,0x51,0x61,0x84,0xA4,0x92,
0x52,0x86,0x02,
//幸福的生活从哪里来？要靠劳动来创造
0x52,0x81,0x81,0x82,0x52,0x62,0x61,0x81,0x54,0x32,0x51,0x61,0x53,0x31,0x12,
0x32,0x24,
//青青的叶儿红红的花，小蝴蝶贪玩耍
0x52,0x82,0x82,0x52,0x62,0x62,0x54,0x51,0x61,0x81,0xA1,0x92,0x52,0x88,
//不爱劳动不学习，我们大家不学它
0x83,0x91,0x82,0x52,0x62,0x62,0x54,0x33,0x81,0x62,0x52,0x12,0x32,0x24,
//要学喜鹊造新房，要学蜜蜂采蜜糖
0x12,0x11,0x21,0x32,0x52,0x82,0x52,0x68,0x52,0x61,0x61,0x84,0xA4,0x92,0x52,
0x84,0xff//歌曲结束符号
//劳动的快乐说不尽，劳动的创造最光荣
};
//—————————————————唯一——————————————————//
uchar code wy[]=
{
0x04,0x43,0x43,0x43,0x33,0x23,0x13,0x33,0x54,0x83,0x83,0x93,0xA3,0x92,0x81,
0x63,0x62,0xA3,0x93,0x83,0x96,0x04,0x04,
//最近我无法呼吸，连自己的影子也都想逃避
0xA4,0x94,0x82,0x82,0x82,0x52,0x82,0x92,0xA4,
//Ba By 你就是我的唯一
0x72,0x72,0x72,0x52,0x72,0x82,0x94,0x04,0xA2,0xA2,0xB2,0xA2,0x82,0x92,
//两个世界都变心，回去谈何容易
0x04,0xA4,0x94,0x82,0x82,0x82,0x52,0x82,0x92,0xA4,
//确定你就是我的唯一
0x72,0x72,0x72,0x52,0x72,0x82,0x92,0xA2,0x84,0x64,0x03,0x51,0xB2,0xA2,0x82,
0x61,0x51,
//独自对着电话说我爱你，我真的爱你
0x04,0xA4,0x94,0x82,0x82,0x82,0x82,0x72,0x82,0x52,0x32,0x68,
//BABY 我已不能多爱你一些
0x02,0xA4,0x94,0x82,0x82,0x82,0x82,0x72,0x82,0x54,0x42,0x66,0xff
//其实早已超过了爱的极限
};
//————————————————同桌的你——————————————————//
uchar code tzdn[]=
{
0x52,0x52,0x52,0x52,0x32,0x42,0x56,0x86,0x62,0x62,0x62,0x62,0x42,0x62,0x56,
0x04,
//明天你是否会想起，昨天你写的日记
0x52,0x52,0x52,0x52,0x72,0x62,0x52,0x44,0x02,0x42,0x42,0x42,0x42,0x33,0x21,
0x16,0x02,
//明天你是否还惦记，曾经最爱哭的你
0x82,0x82,0x82,0x82,0x52,0x32,0x86,0x82,0xA4,0x92,0x92,0x92,0x93,0x81,0x72,
0x66,0x02,
//谁娶了多愁善感的你，谁看了你的日记
0x72,0x72,0x72,0x72,0x72,0x82,0x96,0x54,0x02,0x72,0x72,0x82,0x92,0x82,0x72,
0x16,0x02,
//谁把你的长发盘起，谁给你做的嫁衣
0x84,0x82,0x82,0x52,0x62,0x86,0xA6,0x94,0x92,0x92,0x82,0x72,0x66,0x74,0x72,
0x72,0x72,0x82,0x96,0x56,
//啦……，啦……，啦……
0x72,0x72,0x82,0x92,0x82,0x72,0x86,0x94,0x92,0x92,0x62,0x72,0x96,0xB6,0x94,
0x92,0x92,0x82,0x72,0x66,
//啦……，啦……，啦……
0x72,0x72,0x72,0x72,0x72,0x82,0x96,0x56,0x72,0x72,0x82,0x92,0x82,0x72,0x96,
0x86,0xff
//啦……，啦……，啦……，啦……
};
//———————————————小小葫芦娃—————————————————//
uchar code hlw[]=
{
0x12,0x12,0x35,0x11,0x12,0x31,0x02,
//葫芦娃，葫芦娃
0x62,0x62,0x61,0x51,0x62,0x51,0x12,0x31,0x02,
//一根藤上七朵花
0x81,0x61,0x61,0x51,0x65,0x51,0x12,0x21,0x02,
//风吹雨打都不怕
0x75,0x51,0x32,0x58,
//啦啦啦啦
0x81,0x01,0x61,0x61,0x51,0x51,0x62,0x61,0x01,
//叮当当冬冬当当
0x52,0x11,0x32,0x02,0x81,0x01,0x61,0x61,0x51,0x51,0x61,0x61,0x01,0x51,0x11,
0x22,0x02,
//葫芦娃，叮当当冬冬当当，七朵花
0x35,0x11,0x62,0x18,
//啦啦啦啦
0x31,0x52,0x61,0x31,0x52,0x61,
//葫芦娃，葫芦娃
0x85,0x01,0x71,0x52,0x65,0x02,0xff
//七朵花
};
//————————————————千年之恋 ————————————————//
uchar code qnzl[]=
{
0x32,0x31,0x21,0x32,0x52,0x32,0x31,0x21,0x32,0x62,
//竹林的灯火到过的沙漠
0x32,0x31,0x21,0x32,0x82,0x71,0x81,0x71,0x51,0x32,0x22,
//七色的国度不断飘逸风中
0x32,0x31,0x21,0x32,0x52,0x32,0x31,0x21,0x32,0x62,
//有一种神秘灰色的旋涡
0x32,0x31,0x21,0x32,0x83,0x82,0x71,0x72,0x02,
//将我卷入了迷雾中
0x63,0xA1,0xA2,0x62,0x92,0x82,0x52,
//看不清的双手
0x31,0x51,0x63,0x51,0x63,0x51,0x63,0x51,0x62,0x82,0x7C,0x02,
//一朵花传来谁经过的温柔
0x61,0x71,0x82,0x71,0x62,0xA2,0x71,0x76,
//穿越千年的伤痛
0x61,0x71,0x82,0x71,0x62,0x52,0x31,0x36,
//只为求一个结果
0x61,0x71,0x82,0x71,0x62,0xA3,0x73,0x62,0x53,
//你留下的轮廓指引我
0x42,0x63,0x83,0x83,0x91,0x91,
//黑夜中不寂寞
0x61,0x71,0x82,0x71,0x62,0x0A2,0x71,0x76,
//穿越千年的哀愁
0x61,0x71,0x82,0x71,0x62,0x52,0x31,0x36,
//是你在尽头等我
0x61,0x71,0x82,0x71,0x62,0xA3,0x73,0x62,0x53,
//最美丽的感动会值得
0x42,0x82,0x88,0x02,0x74,0x93,0x89,0xff//结束标志
//用一生守候
};
//简谱音调对应的定时器初值，适合11.0592M的晶振
uchar code cuzhi[]={256,293,329,349,392,440,494,523,586,658,697,783,879,987};
void delay(uint z) //延时165MS,即十六分音符
{
uint x,y;
for(x=z;x>0;x--)
for(y=13333;y>0;y--);
}
void delay1(uint z) //延时1MS
{
uint x,y;
for(x=z;x>0;x--)
for(y=120;y>0;y--);
}
void timer0() interrupt 1 //定时器0，用于产生各种音调
{
TH0=timeh;
TL0=timel;
speaker=~speaker;
}
void song() //播放歌曲函数
{
uint temp;
uchar jp;//jp是简谱
i=0;
temp=tzdn[i]; //同桌的你
jp=temp/16; //取数的高4位
if(jp!=0)
{
timeh=(65536-1/cuzhi[jp])/256;
timel=(65536-1/cuzhi[jp])%256;
}
else
{
TR0=0;
speaker=1;//关扬声器
}
delay(temp%16); //取数的低4位
TR0=0; //唱完一个音停10MS
speaker=1;
delay1(10);
TR0=1;
i++;
}
void main()
{
count=0;//不唱歌
TMOD=0x11;//定时器工作方式
TH0=0;
TL0=0; //定时器0赋初值
ET0=1; //定时器0溢出中断使能
TR1 = 1; //开始计时
ET1 = 1; //定时器1溢出中断使能
while(1)
{
song();
delay1(1000);
}
}

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