用單片機制作的可以演奏兩只老虎的裝置的原理圖誰有啊，能發壹份給我嗎？

#include <reg52.h>

#include <intrins.h>

#define uchar unsigned char

#define uint unsigned int

uchar Song_Index = 0,Tone_Index = 0;

sbit SPK = P3^7;

sbit K1 = P1^0;

uchar code DSY_CODE[]=

{

0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90

};

uchar code HI_LIST[]=

{

0,266,229,232,233,236,238,240,241,242,244,245,246,247,248

};

uchar code LO_LIST[]=

{

0,4,13,10,20,3,8,6,2,23,5,26,1,4,3

};

uchar code Song[][50]=

{

{1,2,3,1,1,2,3,1,3,4,5,3,4,5,3,4,5,5,6,1,2,3,6,2,6,6,2,3,4,5,2,5,2,3,-1},

{3,3,3,5,6,2,3,4,6,2,6,4,2,1,2,3,6,2,5,6,3,4,5,6,2,3,1,2,3,5,1,2,3,-1},

{3,2,1,3,2,1,1,2,3,1,3,5,1,5,4,6,2,6,3,4,2,3,6,2,3,4,2,1,1,1,2,2,2,3,3,2,6,3,5,3,5,1,2,6,4,5,-1}

};

uchar code Len[][50]=

{

{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,2,2,2,2,2,2,2,2,2,2,2,1,1,-1},

{1,1,1,1,1,1,1,1,1,1,1,2,2,1,1,1,2,2,2,2,1,1,1,1,1,1,1,1,-1},

{1,1,2,1,1,2,1,1,1,1,1,1,1,1,2,1,1,1,2,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,1,1,1,1,2,2,-1}

};

void EX0_INT() interrupt 0

{

TR0 = 0;

Song_Index = (Song_Index+1)%3;

Tone_Index = 0;

P2 = DSY_CODE[Song_Index];

}

void T0_INT() interrupt 1

{

SPK = !SPK;

TH0 = HI_LIST[Song[Song_Index][Tone_Index]];

TL0 = LO_LIST[Song[Song_Index][Tone_Index]];

}

void delay(uint ms)

{

uchar i;

while(ms--)

{

for(i=0;i<120;i++);

}

}

void main()

{

P2 = 0xc0;

IE = 0x83;

TMOD = 0x00;

IT0 = 1;

IP = 0x02;

while(1)

{

while(K1==1);

while(K1==0);

TR0 = 1;

Tone_Index = 0;

while(Song[Song_Index][Tone_Index]!=-1&&K1==1&&TR0==1)

{

delay(300*Len[Song_Index][Tone_Index]);

Tone_Index++;

}

TR0 = 0;

while(K1==0);

}

}

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