C51音乐倒数计数器设计

#include<reg51.h> #define uchar unsigned char #define uint unsigned int #define busy 0x80 sbit k1=P1^0; sbit k2=P1^1; sbit k3=P1^2; sbit k4=P1^3; sbit k5=P1^4; sbit RS=P2^5; sbit RW=P2^6; sbit E=P2^7; sbit led=P2^0; sbit sound=P3^7; uchar code tableee[]=" 20:00 20:00"; uchar code tablee[]=" 10:00 10:00"; uchar code table[]=" 05:00 05:00"; uchar code table1[]={'0','1','2','3','4','5','6','7','8','9'}; uchar code table3[]="14 dao ji shi"; uchar code table2[]="888888888888"; uchar code table5[]=" 05:00"; uchar code table4[]=" TIME OUT! "; uchar d,e,num,t,shishi,shige,fenshi,fenge,miaoshi,miaoge,b,b1,a,aa; uint counter=0; uchar code array[]= {0x18, 0x30, 0x1C, 0x10, 0x20, 0x40, 0x1C, 0x10, 0x18, 0x10, 0x20, 0x10, 0x1C, 0x10, 0x18, 0x40, 0x1C, 0x20, 0x20, 0x20, 0x1C, 0x20, 0x18, 0x20, 0x20, 0x80, 0xFF, 0x20, 0x30, 0x1C, 0x10, 0x18, 0x20, 0x15, 0x20, 0x1C, 0x20, 0x20, 0x20, 0x26, 0x40, 0x20, 0x20, 0x2B, 0x20, 0x26, 0x20, 0x20, 0x20, 0x30, 0x80, 0xFF, 0x20, 0x20, 0x1C, 0x10, 0x18, 0x10, 0x20, 0x20, 0x26, 0x20, 0x2B, 0x20, 0x30, 0x20, 0x2B, 0x40, 0x20, 0x20, 0x1C, 0x10, 0x18, 0x10, 0x20, 0x20, 0x26, 0x20, 0x2B, 0x20, 0x30, 0x20, 0x2B, 0x40, 0x20, 0x30, 0x1C, 0x10, 0x18, 0x20, 0x15, 0x20, 0x1C, 0x20, 0x20, 0x20, 0x26, 0x40, 0x20, 0x20, 0x2B, 0x20, 0x26, 0x20, 0x20, 0x20, 0x30, 0x80, 0x20, 0x30, 0x1C, 0x10, 0x20, 0x10, 0x1C, 0x10, 0x20, 0x20, 0x26, 0x20, 0x2B, 0x20, 0x30, 0x20, 0x2B, 0x40, 0x20, 0x15, 0x1F, 0x05, 0x20, 0x10, 0x1C, 0x10, 0x20, 0x20, 0x26, 0x20, 0x2B, 0x20, 0x30, 0x20, 0x2B, 0x40, 0x20, 0x30, 0x1C, 0x10, 0x18, 0x20, 0x15, 0x20, 0x1C, 0x20, 0x20, 0x20, 0x26, 0x40, 0x20, 0x20, 0x2B, 0x20, 0x26, 0x20, 0x20, 0x20, 0x30, 0x30, 0x20, 0x30, 0x1C, 0x10, 0x18, 0x40, 0x1C, 0x20, 0x20, 0x20, 0x26, 0x40, 0x13, 0x60, 0x18, 0x20, 0x15, 0x40, 0x13, 0x40, 0x18, 0x80, 0x00 }; char shi,fen,miao; void LCD_init(); bit lcd_busy(); void write_1602cmd(uchar cmd); //写命令 void write_1602Data(uchar Data); //写数据 void sound_delay(uchar n); void playmusic(); void delay(uchar z); void init() { t=0,led=1; TMOD=0X11; //设置定时器0,置定时器1在工作方式1 TH0=0xff; TL0=0xff; TH1=(65536-50000)/256; //给定时器1装初值 TL1=(65536-50000)%256; EA=1; //开启总中断 ET0=1; // 开启外部中断0中断 ET1=1;// 开启定时器1中断 TR0=0; TR1=0; LCD_init(); write_1602cmd(0x80); for(num=0;num<14;num++) { write_1602Data(table3[num]); delay(5); } write_1602cmd(0x80+0x40); for(num=0;num<12;num++) { write_1602Data(table2[num]); delay(5); } } void key_check() { if(k2==0) //5min { delay(10); if(k2==0) { write_1602cmd(0x80+0x40); for(num=0;num<12;num++) { write_1602Data(table[num]); delay(5); } TR1=1;fen=5;miao=0; } } if(k3==0) //10min { delay(10); if(k3==0) { write_1602cmd(0x80+0x40); for(num=0;num<12;num++) { write_1602Data(tablee[num]); delay(5); } TR1=1;fen=10;miao=0; } } if(k4==0) //20min { delay(10); if(k4==0) { write_1602cmd(0x80+0x40); for(num=0;num<12;num++) { write_1602Data(tableee[num]); delay(5); } TR1=1;fen=20;miao=0; } } if(k1==0) { delay(10); if(k1==0) { write_1602cmd(0x80+0x40); for(num=0;num<12;num++) { write_1602Data(table5[num]); delay(5); } fen = 5; while(k4 != 0) { if(k2==0) { delay(10); if(k2==0) { fen++; fenge=fen%10; fenshi=fen/10; write_1602cmd(0x80+0x40+2); write_1602Data(table1[fenge]); write_1602cmd(0x80+0x40+1); write_1602Data(table1[fenshi]); write_1602cmd(0x0f); //打开光标闪烁 while(k2==0); } } if(k3==0) { delay(10); if(k3==0) { fen--; fenge=fen%10; fenshi=fen/10; write_1602cmd(0x80+0x40+2); write_1602Data(table1[fenge]); write_1602cmd(0x80+0x40+1); write_1602Data(table1[fenshi]); write_1602cmd(0x0f); //打开光标闪烁 while(k3==0); } } } TR1=1; write_1602cmd(0x0c); //关闭光标闪烁 } } } void main() { a=0,aa=0,d=0;e=0; init(); delay(100); while(1) { if(TR1 == 0) key_check(); while(TR0==1&&TR1==0) { playmusic(); } } } void time1() interrupt 3 //定时器1中断 { TH1=(65536-50000)/256; TL1=(65536-50000)%256; a++; aa++; if(a==20) //定时达到1s { a=0; if(fen==0 && miao==0) //到达了指定时间 { TR1=0;TR0=1;led=0; write_1602cmd(0x80+0x40); for(num=0;num<15;num++) { write_1602Data(table4[num]); delay(5); } goto end; //直接跳出定时器中断 } if(miao==0) { miao = 59; fen--; fenge=fen%10; fenshi=fen/10; write_1602cmd(0x80+0x40+8); write_1602Data(table1[fenge]); write_1602cmd(0x80+0x40+7); write_1602Data(table1[fenshi]); } miaoge = miao%10; miaoshi = miao/10; write_1602cmd(0x80+0x40+11); write_1602Data(table1[miaoge]); write_1602cmd(0x80+0x40+10); write_1602Data(table1[miaoshi]); miao--; } if(aa==10) //开启流水灯，让它随时间的流动 { aa=0; led=~led; write_1602cmd(0x80+0x40+9); if(led ==1) { write_1602Data(':'); }else{ write_1602Data(' '); } } end: //结束了直接跳到这里来 ; } //********************************************* void delay(uchar z) { uchar x,y; for(x=z;x>0;x--) for(y=200;y>0;y--); } bit lcd_busy() //测试LCD忙碌状态 { bit result; E= 0; RS= 0; //指令 RW= 1; //读出 E= 1; delay(4);//高电平读出 1us result = (bit)(P0 & busy); E= 0; return result; } void write_1602cmd(uchar cmd) //写命令 { while(lcd_busy()); RS=0; delay(5); RW=0; delay(5); E=0; delay(5); P0=cmd; E=1; delay(10); E=0; } void write_1602Data(uchar Data) //写数据 {while(lcd_busy()); RS=1; delay(5); RW=0; delay(5); E=0; P0=Data; delay(5); E=1; delay(10); E=0; } //lcd初始化 void LCD_init() { write_1602cmd(0x01); //清屏 delay(5); write_1602cmd(0x38); //功能设定 delay(5); write_1602cmd(0x0c); //光标不闪烁 delay(5); write_1602cmd(0x06); //lcd模式设定， delay(5); } void sound_delay(uchar n) { uchar i; while(n--) { for(i=0;i<2;i++); } } void time0() interrupt 1 //定时器0中断 { counter=counter+1;//节拍次数计数 TH0=0xd8; //定义单位节拍的延时大小 TL0=0xef; } void playmusic() { uint i; uchar sound_signal;//定义音符大小 uchar sound_pace; while(1) { i=0; while(array[i]!=0x00) { //如果是休止符，延时100ms，并终止本次循环，进入下一个循环 if(array[i]==0xff) { TR0=0; i++; delay(100); continue; } //从表中取得音符� sound_signal=array[i]; i=i+1; //从表中取得节拍大小 sound_pace=array[i]; TR0=1; //当节拍数未达到时候，继续循环，产生该音调的声音 while(counter!=sound_pace) { sound=~sound; sound_delay(sound_signal); }