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按鍵部分電路圖
做的是利用定時器的音樂播放器，但是出不來聲音，求大神幫忙看一下程序
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit song=P1^0;
sbit start=P3^6;
sbit stop=P3^7;
bit flag=0;
uchar code newyear[]={0xFE,0x25,4,0xFE,0x25,4,0xFE,0x25,8,
0xFD,0x80,8,0xFE,0x84,4,0xFE,0x84,4,
0xFE,0x84,8,0xFE,0x25,8,0x0FE,0x25,4,
0xFE,0x84,4,0x0FE,0x0C0,8,0xFE,0xC0,8,
0xFE,0x98,4,0xFE,0x84,4,0xFE,0x57,8,
0xFF,0xFF};
uchar code tiger[]={0xfe,0x25,4,0xfe,0x57,4,0xfe,0x84,4,
0xfe,0x25,4,0xfe,0x25,4,0xfe,0x57,4,
0xfe,0x84,4,0xfe,0x25,4,0xfe,0x84,4,
0xfe,0x98,4,0xfe,0xc0,8,0xfe,0x84,4,
0xfe,0x98,4,0xfe,0xc0,8,0xfe,0xc0,2,
0xfe,0xe3,2,0xfe,0xc0,2, 0xfe,0x98,2,
0xfe,0x84,4,0xfe,0x25,4,0xfe,0xc0,2,
0xfe,0xe3,2,0xfe,0xc0,2, 0xfe,0x98,2,
0xfe,0x84,4,0xfe,0x25,4,0xfe,0x25,4,
0xfd,0x80,4,0xfe,0x25,8,0xfe,0x25,4,
0xfd,0x80,4,0xfe,0x25,8,0xff,0xff};
void delay(uchar time);
void chushi();
void key();
void play(uchar melody[]);
int H=-3,L=-2,T=-1,a,b,c,d;
void main()
{
while(1)
{if(d==1)
{play(newyear);}
if(d==2)
{play(tiger);}
if(d==3)
TR1=0;
}
}
void test() interrupt 3
{
TH1=a;
TL1=b;
song=~song;
}
void delay(uchar time)
{
uint i;
for(i=0;i<time*2000;i++);
}
void chushi()
{
TMOD=0x10;
ET1=1;
EA=1;
TR1=1;
IT0=1;
EX0=1;
}
void key() interrupt 0
{
chushi();
flag=1;
d=0;
if(start==0)
{
d++;
if(d==3)
d=1;
}
if(stop==0)
d=3;
}
void play(uchar melody[])
{
chushi();
while(1)
{
a=melody[H];
b=melody[L];
c=melody[T];
H=H+3;
L=L+3;
T=T+3;
delay(c);
TR1=0;
delay(1);
TR1=1;
if(melody[H]==0xff){TR1=0;H=-3;L=-2;T=-1;}}
}
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