? ? ?DATA1?? EQU?? 30H?????? ;
?DATA2?? EQU?? 31H?????? ;
?SP1???? EQU?? P3.7????? ;
;-----------------------------------------------------????????
??ORG???? 0000H?????????? ;
?LJMP??? START?????????? ;
?ORG???? 000BH?????????? ;
?INC???? DATA1?????????? ;中斷服務(wù),中斷計數(shù)器加1
?MOV???? TH0,#0DBH?????? ;
?MOV???? TL0,#0FEH?????? ;11.0592M晶振，形成10毫秒中斷
?RETI??????????????????? ;
;---------------------------------------------------
START:
?CPL???? SP1???????????? ;
?MOV???? SP,#50H???????? ;
?MOV???? TH0,#0DBH?????? ;
?MOV???? TL0,#0FEH?????? ;
?MOV???? TMOD,#01H?????? ;
?MOV???? IE,#82H???????? ;
VOICE0:
?NOP???????????????????? ;
?MOV???? DPTR,#TABLE???? ;表頭地址送DPTR
?MOV???? DATA1,#00H????? ;中斷計數(shù)器清0
?MOV???? DATA2,#00H????? ;表序號清0
VOICE1:
?NOP???????????????????? ;???
?CLR???? A?????????????? ;
?MOVC??? A,@A+DPTR?????? ;查表取代碼???????
?JZ????? EXIT_END??????? ;是00H,則結(jié)束
?CJNE??? A,#0FFH,VOICE5? ;??????
?LJMP??? VOICE3????????? ;
VOICE5:??????
?NOP???????????????????? ;
?MOV???? R6,A??????????? ;??
?INC???? DPTR??????????? ;?????????
?MOV???? A,DATA2???????? ;????
?MOVC??? A,@A+DPTR?????? ;取節(jié)拍代碼送R7
?MOV???? R7,A??????????? ;????
?SETB??? TR0???????????? ;啟動計數(shù)
VOICE2:??????
?NOP???????????????????? ;
?CPL???? P3.7??????????? ;????
?MOV???? A,R6??????????? ;
?MOV???? R3,A??????????? ;???
?LCALL?? DELAY?????????? ;
?MOV???? A,R7??????????? ;????
?CJNE??? A,DATA1,VOICE2? ;中斷計數(shù)器(20H)=R7否?
????;不等,則繼續(xù)循環(huán)
?MOV???? DATA1,#00H????? ;等于,則取下一代碼???????
?INC???? DPTR??????????? ;????
?LJMP??? VOICE1????????? ;
VOICE3:????????
?NOP???????????????????? ;
?CLR???? TR0???????????? ;休止100毫秒
?MOV???? R2,#0DH???????? ;
VOICE4:?????????
?NOP???????????????????? ;???????
?MOV???? R3,#0FFH??????? ;???????
?LCALL?? DELAY?????????? ;???
?DJNZ??? R2,VOICE4?????? ;?????
?INC???? DPTR??????????? ;??
?LJMP??? VOICE1????????? ;
;--------------------------------------------------
EXIT_END:????????
?NOP????????
?MOV???? R2,#64H???????? ;歌曲結(jié)束,延時1秒后繼續(xù)
VOICE6:????????
?MOV???? R3,#00H???????? ;??????
?LCALL?? DELAY?????????? ;
?DJNZ??? R2,VOICE6?????? ;???????
?LJMP??? VOICE0????????? ;
;--------------------------------------------------
DELAY:???????
?NOP???????????????????? ;
DEL3:?
??????? MOV???? R4,#02H???????? ;
DEL4:?
?NOP???????????????????? ;
?DJNZ??? R4,DEL4???????? ;??????
?NOP???????????????????? ;
?DJNZ??? R3,DEL3???????? ;???????
?RET???????????????????? ;??????????????
;-------------------------------------------------?
TABLE:???
?DB????? 18H,???? 30H,???? 1CH ,??? 10H
?DB????? 20H,???? 40H,???? 1CH ,??? 10H?
?DB????? 18H,???? 10H,???? 20H ,??? 10H
?DB????? 1CH,???? 10H,???? 18H ,??? 40H
?DB????? 1CH,???? 20H,???? 20H ,??? 20H
?DB????? 1CH,???? 20H,???? 18H ,??? 20H?
?DB????? 20H,???? 80H,???? 0FFH,??? 20H
?DB????? 30H,???? 1CH,???? 10H ,??? 18H
?DB????? 20H,???? 15H,???? 20H ,??? 1CH
?DB????? 20H,???? 20H,???? 20H ,??? 26H
?DB????? 40H,???? 20H,???? 20H ,??? 2BH
?DB????? 20H,???? 26H,???? 20H ,??? 20H
?DB????? 20H,???? 30H,???? 80H ,??? 0FFH
?DB????? 20H,???? 20H,???? 1CH ,??? 10H
?DB????? 18H,???? 10H,???? 20H ,??? 20H
?DB????? 26H,???? 20H,???? 2BH ,??? 20H
?DB????? 30H,???? 20H,???? 2BH ,??? 40H
?DB????? 20H,???? 20H,???? 1CH ,??? 10H
?DB????? 18H,???? 10H,???? 20H ,??? 20H
?DB????? 26H,???? 20H,???? 2BH ,??? 20H
?DB????? 30H,???? 20H,???? 2BH ,??? 40H
?DB????? 20H,???? 30H,???? 1CH ,??? 10H
?DB????? 18H,???? 20H,???? 15H ,??? 20H
?DB????? 1CH,???? 20H,???? 20H ,??? 20H
?DB????? 26H,???? 40H,???? 20H ,??? 20H??
?DB????? 2BH,???? 20H,???? 26H ,??? 20H
?DB????? 20H,???? 20H,???? 30H ,??? 80H
?DB????? 20H,???? 30H,???? 1CH ,??? 10H
?DB????? 20H,???? 10H,???? 1CH ,??? 10H
?DB????? 20H,???? 20H,???? 26H ,??? 20H
?DB????? 2BH,???? 20H,???? 30H ,??? 20H
?DB????? 2BH,???? 40H,???? 20H ,??? 15H
?DB????? 1FH,???? 05H,???? 20H ,??? 10H
?DB????? 1CH,???? 10H,???? 20H ,??? 20H
?DB????? 26H,???? 20H,???? 2BH ,??? 20H
?DB????? 30H,???? 20H,???? 2BH ,??? 40H
?DB????? 20H,???? 30H,???? 1CH ,??? 10H
?DB????? 18H,???? 20H ,??? 15H ,??? 20H
?DB????? 1CH,???? 20H ,??? 20H ,??? 20H
?DB????? 26H,???? 40H,???? 20H ,??? 20H
?DB????? 2BH,???? 20H,???? 26H ,??? 20H
?DB????? 20H,???? 20H,???? 30H ,??? 30H?
?DB????? 20H,???? 30H,???? 1CH ,??? 10H
?DB????? 18H,???? 40H,???? 1CH ,??? 20H
?DB????? 20H,???? 20H,???? 26H ,??? 40H
?DB????? 13H,???? 60H,???? 18H ,??? 20H
?DB????? 15H,???? 40H,???? 13H ,??? 40H
?DB????? 18H,???? 80H,???? 00H
?END
?
?

2、單片機播放歌曲《蘭花草》

?*******************************************************???
??????? SPK?? EQU? P3.7???; 蜂鳴器所在端口
?ORG?0000H
?JMP?START
?
START:
?MOV?R3,#00H
NEXT:
?MOV?A,R3
?MOV?DPTR,#TABLE
?MOVC?A,@A+DPTR
?JZ?START
?MOV?R7,A
?INC?R3
?MOV?A,R3
?MOVC?A,@A+DPTR
?MOV?R2,A
?ACALL?SONG
?INC?R3
?SJMP?NEXT

;===============================================================================?
;===? 歌曲播放子程序 ===
SONG:
?MOV?A,R2?????; 取出節(jié)拍
?RL?A
?JNZ?KEEP
?MOV?A,#01H
KEEP:
?MOV?R2,A
REPEAT:
?ACALL?EIGHTH
?DJNZ?R2,REPEAT
?RET
?
;===============================================================================?
;===? 產(chǎn)生1/8拍延時子程序? ===??
EIGHTH:
?MOV?A,R7?????; 查表取出廷時參數(shù),保存到R4
?MOV?DPTR,#DELAY_T
?MOVC?A,@A+DPTR
?MOV?R4,A
?MOV?A,R7?????; 查表取出1/8拍周期數(shù),保存到R5
?MOV?DPTR,#S_PARA
?MOVC?A,@A+DPTR
?MOV?R5,A
NEXTCYC:
?ACALL?SOUND
?DJNZ?R5,NEXTCYC
?RET
?
;===============================================================================?
;===? 發(fā)聲子程序 ===?
SOUND:
?SETB?SPK
?ACALL?SDELAY
?CLR?SPK
?ACALL?SDELAY
?RET
?
;===============================================================================?
;===? 延時子程序? ===
SDELAY:
?MOV?A,R4?????; 廷時值在R4內(nèi)
?MOV?R0,A
XL2:
?MOV?R1,#03H
DL1:
?NOP
?DJNZ?R1,DL1
?DJNZ?R0,XL2
?RET
;===============================================================================?
;===? 1/8拍周期表? ===
S_PARA:
?DS?1DH
?DB?15H,16H,00
?DB?19H,00H,1CH,00H,1FH,21H,00H,25H
?DB?00H,29H,2CH,00H,31H,34H,37H,00H
?DB?3EH,41H,00H,49H,00H,52H,57H,00H
?DB?62H
?
;===============================================================================?
;===? 延時參數(shù)表? ===
DELAY_T:
?DS?1DH
?DB?7EH,77H,00H
?DB?6AH,00H,5EH,00H,54H,4FH,00H,46H
?DB?00H,3FH,3BH,00H,35H,32H,2FH,00H
?DB?2AH,27H,00H,23H,00H,1FH,1DH,0C0H
?DB?1AH
?
;===============================================================================?
;===? 歌曲表? ===
TABLE:
?DW?2202H,2902H,2902H,2902H,2906H,2702H?;我從山中來
?DW?2502H,2702H,2502H,2402H,2208H??;帶著蘭花草
?DW?2E02H,2E02H,2E02H,2E02H,2E06H,2C02H?;種在小園中
?DW?2902H,2C02H,2D02H,2A02H,2908H??;祈禱花開早
?DW?2902H,2E02H,2E02H,2C02H,2906H,2702H?;一日看三回
?DW?2502H,2702H,2502H,2402H,2206H,1D02H?;看得花時過
?DW?1D02H,2502H,2502H,2402H,2206H,2902H?;蘭花卻依然
?DW?2702H,2502H,2402H,2002H,2208H??;苞也無一個
?DW?0000H?????;
?
?END?
?

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