模拟电子琴发声控制系统 - 图文

单片机课程设计

附录二：

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附录三：

#include sbit a1=P0^0; sbit a2=P0^1; sbit a3=P0^2; sbit a4=P0^3; sbit a5=P0^4; sbit a6=P0^5; sbit a7=P0^6; sbit a8=P0^7; sbit b1=P1^0; sbit b2=P1^1; sbit b3=P1^2; sbit b4=P1^3; sbit b5=P1^4; sbit b6=P1^5; sbit b7=P1^6; sbit k=P3^4; sfr P0M1=0x93; sfr P0M0=0x94; sfr P3M1=0xb1; sfr P3M0=0xb2; void Delay20ms(); void Delay300ms(); void Delay20ms(); void play(void); void listen(void);

void sound1(unsigned char y2); void game(void);

void sound (unsigned char y1,y2);

unsigned int n1=0,n2=0,n3=0,n4=0,n5=0,n6=0,n7=0;

unsigned char table[6]={0xd0,0x89,0xcd,0xb7,0xc2,0xa2}; unsigned char c=0,x=0,neng=0,fu=0,n8=0,n9=0,y=0,n10=0;

unsignedcharyinji[3][7]={38,34,30,28,26,23,20,19,17,15,14,13,11,10,9,8,7,6,5,4,3}; unsigned char deng[8]={0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf};

unsigned char tong1[24]={1,6,7,6,5,4,5,6,5,4,3,5,6,3,5,4,6,7,6,5,4,5,6,5}; unsigned char tong2[24]={4,4,4,8,4,4,8,4,4,4,4,2,2,2,2,8,4,4,8,4,4,8,4,4}; void main() {P0M1=0x00; P0M0=0x20; P3M1=0x00; P3M0=0x10; TMOD= 0x22; //设置定时器模式 TL1 = 0xA4; //设置定时初值

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单片机课程设计

TH1 = 0xA4; //设置定时重载值 TL0 = 0xA4; //设置定时初值 TH0 = 0xA4; //设置定时重载值 TF0 = 0; //清除TF0标志 EA=1; ET1=1; ET0=1; TF1 = 0; //清除TF1标志 TR1 = 1; //定时器1开始计时 k=0; while(1) {

P2=table[n3]; a7=1; a3=a4=0; if(a7==0)

{Delay20ms(); if(a7==0) {a3=1; if(a7!=0) n2=1; else n2=2; Delay300ms(); } }

switch(n2)

{case 1:n3=(1+n3)%3;n2=0;break; case 2:goto out;break; default:break; } }

out: a6=1; TR1=0; neng=1; if(n3==0) play(); neng=2; if(n3==2) listen(); if(n3==1) game();

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}

void inte1(void) interrupt 1 { n5++; if(n5==x) {n5=0;

c=(++c)%2; k=c; }

TF0=0; }

void inte(void) interrupt 3 {if(neng==0) {n4++;

if(n4==2000) {n4=0;

c=(++c)%2; a6=c; } }

if(neng==1) {n4++;

if(n4==625*tong2[n8]) { n8++; n4=0; TR1=0; } }

if(neng==2) {n4++;

if(n4==625*tong2[n8]) { n8++; n4=0; TR1=0; } }

TF1=0; }

void listen(void) {

x=tong1[0];

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