基于C51單片機電子琴的設(shè)計與實現(xiàn)

1.設(shè)計任務(wù)與要求22.1單片機32.2發(fā)聲器44.硬件電路與程序設(shè)計64.2程序框圖65.軟件程序7摘要：打造一個多功能電子琴，核心是一塊單片機。單片機讀取鍵1.設(shè)計任務(wù)與要求2.1單片機上設(shè)備低能耗的需求，低能耗也是電子技術(shù)一直在追求的一個目機品種很適合應(yīng)用于采用電池供電的長時間工作場合在這個系列中有很多個型號它們是由一些基本功能模塊按不同的應(yīng)用目標(biāo)組合而位精簡指令系統(tǒng),集成有16位寄存器和經(jīng)濟實用，故采用方案一。2.2發(fā)聲器4.程序控制方便。3.理論分析與計算：4.硬件電路與程序設(shè)計4.2程序框圖按鍵模硬件復(fù)系統(tǒng)時5.軟件程序i,j;uinttoneh[8]={0xfc43,0xfcab,0xfd09,0xfd33,0xfd81,0xfdc7,0xfe05,0xfe21};0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};0x15,0x03,0x16,0x03,0x17,0x03,0x18,0x03,0x19,0x02,0x16,0x03,0x17,0x03,0x18,0x03,0x1F,0x03,0x20,0x02,0x1F,0x03,0x21,0x03,0x20,0x030x1F,0x03,0x19,0x03,0x1F,0x03,0x21,0x03,0x20,0x030x18,0x03,0x20,0x03,0x20,0x02,0x1F,0x03,0x1F,0x66,0x20,0x03,0x21,0x03,0x20,0x03,0x1B,0x03,0x1F,0x66,0x1F,0x04,0x1B,0x0E,0x19,0x03,0x15,0x03,0x17,0x04,0x18,0x04,0x1B,0x03,0x1F,0x66,0x20,00x1F,0x03,0x1B,0x03,0x1F,0x66,0x1F,0x03,0x19,0x03,0x19,0x03,0x1F,0x0x15,0x02,0x18,0x66,0xff,0xff};0xf8,0x8b,0xf9,0x5b,0xfa,0x14,0xfa,0x66,0xfb,0x03,0xfb,0x8f,0xfc,0x0b,0xfd,0xee};0x1F,0x03,0x1F,0x03,{0xf8,0x8b,0xf9,0x5b,0xfa,0x14,0xfa,0x66,0xfb,0x03,0xfb,0x8f,0xfc,0x0b}{0xfc,0x43,0xfc,0xab,0xfd,0x08,0xfd,0x33,0xfd,0x81,0xfd,0xc7,0xfe,0x05}{0xfb,0x21,0xfe,0x55,0xfe,0x84,0xfe,0x99,0xfe,0xc0,0xfe,0xe3,0xff,0x02}};//11111000,10001011unsignedcharconstlength[]={1,2,4,8,16,32,64};unsignedcharsth,stl;voiddelay_ms(unsignedintk)unsignedinti0;unsignedchari,j;for(i0=0;i0<k;i0++)for(i=5;i>0;i--)for(j=97;j>0;j--);}voidSys_Init(){P1=0xff;}ucharGet_Key(){uchari,temp;P1=0xff;temp=P1;for(i=0;i<8;i++){if(temp==keymode[i])returni;}return8;}voidPlay(ucharkey){ucharj;if(key==7){for(j=0;{Music_hzcb[j]!=0xff;j++)keycode=Music_hzcb[j];delay_ms(10);sth=yinfu1[(Music_hzcb[j]%100)/10-1][((Music_hzcb[j]%10)-1)*2];stl=yinfu1[(Music_hzcb[j]%100)/10-1][((Music_hzcb[j]%10)-1)*2+1];j++;delay_ms(4*500/length[Music_hzcb[j]%10]);}for(;;){while(P3==0x7f);delay_ms(10);if(P3==0x7f)continue;elsebreak;}}else{