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求STC89C52單片機(jī)的蜂鳴器演奏 (歌曲隨便)C程序

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問(wèn) 提問(wèn)者:網(wǎng)友 2020-03-31
最佳回答
  蜂鳴器唱《祝你平安》 *  ; *  ;********************************************************************************/  SPK bit P2.3  ORG 0000H  LJMP START  ORG 000BH  INC 20H ;中斷服務(wù),中斷計(jì)數(shù)器加1  MOV TH0,#0D8H  MOV TL0,#0EFH ;12M晶振,形成10毫秒中斷  RETI  START:  MOV SP,#50H  MOV TH0,#0D8H  MOV TL0,#0EFH  MOV TMOD,#01H  MOV IE,#82H  MUSIC0:  NOP  MOV DPTR,#DAT ;表頭地址送DPTR  MOV 20H,#00H ;中斷計(jì)數(shù)器清0  MOV B,#00H ;表序號(hào)清0  MUSIC1:  NOP  CLR A  MOVC A,@A+DPTR ;查表取代碼  JZ END0 ;是00H,則結(jié)束  CJNE A,#0FFH,MUSIC5  LJMP MUSIC3  MUSIC5:  NOP  MOV R6,A  INC DPTR  MOV A,B  MOVC A,@A+DPTR ;取節(jié)拍代碼送R7  MOV R7,A  SETB TR0 ;啟動(dòng)計(jì)數(shù)  MUSIC2:  NOP  CPL SPK  MOV A,R6  MOV R3,A  LCALL DEL  MOV A,R7  CJNE A,20H,MUSIC2 ;中斷計(jì)數(shù)器(20H)=R7否?  ;不等,則繼續(xù)循環(huán)  MOV 20H,#00H ;等于,則取下一代碼  INC DPTR  ; INC B  LJMP MUSIC1  MUSIC3:  NOP  CLR TR0 ;休止100毫秒  MOV R2,#0DH  MUSIC4:  NOP  MOV R3,#0FFH  LCALL DEL  DJNZ R2,MUSIC4  INC DPTR  LJMP MUSIC1  END0:  NOP  MOV R2,#64H ;歌曲結(jié)束,延時(shí)1秒后繼續(xù)  MUSIC6:  MOV R3,#00H  LCALL DEL  DJNZ R2,MUSIC6  LJMP MUSIC0  DEL:  NOP  DEL3:  MOV R4,#02H  DEL4:  NOP  DJNZ R4,DEL4  NOP  DJNZ R3,DEL3  RET  NOP  DAT:  db 26h,20h,20h,20h,20h,20h,26h,10h,20h,10h,20h,80h,26h,20h,30h,20h  db 30h,20h,39h,10h,30h,10h,30h,80h,26h,20h,20h,20h,20h,20h,1ch,20h  db 20h,80h,2bh,20h,26h,20h,20h,20h,2bh,10h,26h,10h,2bh,80h,26h,20h  db 30h,20h,30h,20h,39h,10h,26h,10h,26h,60h,40h,10h,39h,10h,26h,20h  db 30h,20h,30h,20h,39h,10h,26h,10h,26h,80h,26h,20h,2bh,10h,2bh,10h  db 2bh,20h,30h,10h,39h,10h,26h,10h,2bh,10h,2bh,20h,2bh,40h,40h,20h  db 20h,10h,20h,10h,2bh,10h,26h,30h,30h,80h,18h,20h,18h,20h,26h,20h  db 20h,20h,20h,40h,26h,20h,2bh,20h,30h,20h,30h,20h,1ch,20h,20h,20h  db 20h,80h,1ch,20h,1ch,20h,1ch,20h,30h,20h,30h,60h,39h,10h,30h,10h  db 20h,20h,2bh,10h,26h,10h,2bh,10h,26h,10h,26h,10h,2bh,10h,2bh,80h  db 18h,20h,18h,20h,26h,20h,20h,20h,20h,60h,26h,10h,2bh,20h,30h,20h  db 30h,20h,1ch,20h,20h,20h,20h,80h,26h,20h,30h,10h,30h,10h,30h,20h  db 39h,20h,26h,10h,2bh,10h,2bh,20h,2bh,40h,40h,10h,40h,10h,20h,10h  db 20h,10h,2bh,10h,26h,30h,30h,80h,00H  END
回答者:網(wǎng)友
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