基于51單片機的音樂播放器制作詳解

#附錄附錄一：完整的音樂程序#include<reg51.h>sbitp00=p0A0;sbitp10=p1A0；unsignedcharBTH0,BTL0;unsignedchartime;unsignedcharkeytmp;codeunsignedchartable[]={6,2,3,5,2,1,3,2,2,5,2,2,1,3,2,6,2,1,5,2,1,6,24,3,2,2,5,2,1,6,2,1,5,2,2,3,2,2,1,2,1,6,1,1,5,2,1,3,2,1,2,2,4,2,2,3,3,2,1,5,2,2,5,2,1,6,2,1,3,2,2,2,2,2,1,2,4,5,2,3,3,2,1,2,2,1,1,2,1,6,1,1,1,2,1,5,1,6,0,0,0};CodeunsignedcharTH0[]={0xF2,0xF3,0xF5,0xF5,0xF6,0xF7,0xF8,0xF9,0xF9,0xFA,0xFA,0xFB,0xFB,0xFC,0xFC,0xFC,0xFD,0xFD,0xFD,0xFD,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,};codeunsignedcharTL0[]={0x42,0xC1,0x17,0xB6,0xD0,0xD1,0xB6,0x21,0xE1,0x8C,0xD8,0x68,0xE9,0x5B,0x8F,0xEE,0x44,0x6B,0xB4,0xF4,0x2D,0x47,0x77,0xA2,0xB6,0xDA,0xFA,0x16,};voidscankey(){unsignedintkeydata;keytmp=p1&0x01;if(keytmp==0)keydata=0;elseif(keytmp==1)keydata=1;}voidkeydelay(void){uchari;for(i=300;i=0;i--){}}voiddelay(unsignedchartime){unsignedchart1;unsignedchart2;for(t1=0;t1<t;t1++){for(t2=0;t2<8000;t2++){}}}voidtime0_int()interrupt1using0{TR0=0;P00=~P00;TH0=BTH0;TL0=BTL0；TR0=1;}voidsing(){TH0=BTH0;TLO=BTL0;TR0=1;delay(time);}voidmain(void){unsignedchark,i;i=0;TMOD=0x01;EA=1;ET0=1;IE=0x82;while(1){voidscankey();if(keydata==0){}elseif(keydata==1){keydelay();time=1;while(time){if(table[i]==0){i=0;}elseif(table[i]!=0){k=table[i]+7*table[i+1]-1;BTH0=TH0[K];BTL0=TL0[K];time=table[i+2];i=i+3;sing();}}}附錄二：原理圖12345678910vccPO.O/ADOXTAL1P0.1/AD1XTAL2P02AD2PO.3/AD3P0.4/AD4PO.5/AD5P0.6/AD6P0.7/AD7RSTEA-XTPP1.O/T2PSENP1.1,'T2EXALEPl.2Pl.3Pl.4P30ZRkDPl.5P3.1/TxDPl.6P3.24MT0P3.3/B5T1Pl.7P3.4/T0P2.0/A8P3.5/T1P2