带存储功能电子琴 单片机c

电子琴 带存储 #include<reg52.h> #define uchar unsigned char #define uint unsigned int uchar a=0,b=0,c=0,d=0; sbit d1=P3^0; sbit d2=P3^1; sbit d3=P3^4; sbit d4=P3^5; sbit d5=P3^6; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; uint code table1[]={ 0,248,249,250, 250,251,251,252, 252,252,253,253, 253,253,254 }; uint code table2[]={ 0,136, 62, 19, 104, 5,144, 12, 68,209, 9, 52, 130,200, 6 }; uchar table3[80]; uchar qm; uchar mm,nn; void display(uchar a,uchar b,uchar c,uchar d); void delay(uint z); void yinyue(uchar q); uchar key(void); void fangyin(void); void lvyin(void); void main(void) { uchar a1; table3[0]=15; display(a,b,c,d); EA=1; EX0=1; EX1=1; IP=0x08; IT0=0; IT1=0; while(1) { table3[79]=15; d2=1; d3=0; d4=0; d5=0; nn=17; display(a,b,c,d); P2=0xf0; mm=P2; mm=(mm&0xf0); if(mm!=0xf0) { nn=key(); if(nn<=16) { d=c; c=b; b=a; a=nn; } } if(nn<=14) { yinyue(nn); nn=0; } if(nn==15) { d3=1; mm=0xf0; while(mm==0xf0) { while(mm==0xf0) { P2=0xf0; mm=P2; mm=(mm&0xf0); display(a,b,c,d); } display(a,b,c,d); P2=0xf0; mm=P2; mm=(mm&0xf0); } a1=0; while(a1<=250) { a1++; display(a,b,c,d); P2=0xf0; mm=P2; mm=(mm&0xf0); if(mm==0xf0) { d3=1; a1=253; } } if(a1<=252) { display(a,b,c,d); d3=0; d4=1; lvyin(); d4=0; display(a,b,c,d); display(a,b,c,d); display(a,b,c,d); } if(a1>=253) { display(a,b,c,d); d3=0; d5=1; fangyin(); d5=0; display(a,b,c,d); display(a,b,c,d); display(a,b,c,d); } d3=0; } } } void yinyue(uchar q) { uint jia; uchar ce; TMOD=0x10; ET1=1; qm=q; TH1=(65536-table1[q])/256; TL1=(65536-table1[q])%256; display(a,b,c,d); if(q!=0) {TR1=1;} if(q==0) {TR0=0;} for(jia=0;jia<=300;jia++) { P2=0xf0; ce=P2; ce=(ce&0xf0); if(ce!=0xf0) jia=301; display(a,b,c,d); } TR1=0; } void time1() interrupt 3 { TH1=table1[qm]; TL1=table2[qm]; d1=~d1; } void display(uchar a,uchar b,uchar c,uchar d) { P0=0xff; P1=table[a]; P0=0xfe; delay(1); P0=0xff; P1=table[b]; P0=0xfd; delay(1); P0=0xff; P1=table[c]; P0=0xfb; delay(1); P0=0xff; P1=table[d]; P0=0xf7; delay(1); P0=0xff; } void delay(uint z) { uchar p,qq; for(p=0;p<=z;p++) for(qq=0;qq<=57;qq++); } uchar key(void) { uchar hu,num; display(a,b,c,d); display(a,b,c,d); display(a,b,c,d); P2=0xf0; hu=P2; hu=(hu&0xf0); if(hu==0xf0) num=17; if(hu!=0xf0) { P2=0xfe; hu=P2; hu=(hu&0xf0); switch(hu) { case 0xe0:num=3; break; case 0xd0:num=2; break; case 0xb0:num=1; break; case 0x70:num=0; break; } P2=0xfd; hu=P2; hu=(hu&0xf0); switch(hu) { case 0xe0:num=7; break; case 0xd0:num=6; break; case 0xb0:num=5; break; case 0x70:num=4; break; } P2=0xfb; hu=P2; hu=(hu&0xf0); switch(hu) { case 0xe0:num=11; break; case 0xd0:num=10; break; case 0xb0:num=9; break; case 0x70:num=8; break; } P2=0xf7; hu=P2; hu=(hu&0xf0); switch(hu) { case 0xe0:num=15; break; case 0xd0:num=14; break; case 0xb0:num=13; break; case 0x70:num=12; break; } P2=0xf0; hu=P2; while(hu!=0xf0) { P2=0xf0; hu=P2; display(a,b,c,d); display(a,b,c,d); while(hu!=0xf0) { display(a,b,c,d); P2=0xf0; hu=P2; } } } return num; } void int0() interrupt 0 { yinyue(0); yinyue(1); yinyue(2); yinyue(3); yinyue(4); yinyue(5); yinyue(6); yinyue(7); yinyue(8); yinyue(9); yinyue(10); yinyue(11); yinyue(12); yinyue(13); yinyue(14); } void int1() interrupt 2 { yinyue(0); yinyue(1); yinyue(1); yinyue(2); yinyue(4); yinyue(3); yinyue(1); yinyue(1); yinyue(2); yinyue(1); yinyue(5); yinyue(4); yinyue(1); yinyue(1); yinyue(6); yinyue(4); yinyue(3); yinyue(2); yinyue(7); yinyue(7); yinyue(6); yinyue(4); yinyue(5); yinyue(4); yinyue(0); yinyue(1); yinyue(1); yinyue(2); yinyue(4); yinyue(3); yinyue(1); yinyue(1); yinyue(2); yinyue(1); yinyue(5); yinyue(4); yinyue(1); yinyue(1); yinyue(6); yinyue(4); yinyue(3); yinyue(2); yinyue(7); yinyue(7); yinyue(6); yinyue(4); yinyue(5); yinyue(4); } void lvyin(void) { uchar c1=0,c2=0; P2=0xf0; mm=P2; mm=(mm&0xf0); display(a,b,c,d); while(mm!=0xf0) { while(mm!=0xf0) { P2=0xf0; mm=P2; mm=(mm&0xf0); display(a,b,c,d); } display(a,b,c,d); P2=0xf0; mm=P2; mm=(mm&0xf0); } while(c2!=15) { display(a,b,c,d); P2=0xf0; mm=P2; mm=(mm&0xf0); if(mm!=0xf0) { nn=key(); if(nn<=15) { table3[c1]=nn; d=c; c=b; b=a; a=nn; c2=nn; yinyue(nn); display(a,b,c,d); c1++; } } } } void fangyin(void) { uchar c4=0,c5=0; while(c4!=15) { c4=table3[c5]; d=c; c=b; b=a; a=c4; display(a,b,c,d); yinyue(c4); c5++; } }