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單片機(jī)課程設(shè)計音樂盒(留存版)

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【正文】 CALL ENABLE CALL WRITE2 MOV A,HOU INC A MOV HOU,A XRL A,10 JNZ OUT SJMP OVERFLOWOUT: RETI。 TTM2: RET。WELCOM HERE39。將BCD嗎轉(zhuǎn)化為ASIIC碼 MOV P0,0C8H 。DELAY1: SETB RS0dl: mov R5,0ahdl2: mov R6,63dl3: nop nop djnz R6,dl3 djnz R5,dl2 CLR RS0 RET。8位,2行顯示 LCALL ENABLE MOV P0,0FH 。同時啟動定時器T1,顯示樂曲播放的時間,并驅(qū)動LCD,顯示歌曲號及播放時間。實驗程序如下:RS BIT 。lk: add a,R4 push acck4: lcall delay1 。kaiji: mov a,37h cjne a,0fh,DFF MOV P0,80H 。設(shè)光標(biāo)地址 CALL ENABLE MOV DPTR,TABLE2。MOV TH1, 3cH 。顯示秒個位 CALL ENABLE CALL WRITE2 MOV A,SEC INC A MOV SEC,A XRL A,60X4: JNZ OUTMINSET: MOV SEC,00H 。TABLE20: DB 02H,82H DB 16H,32H,54H,02H,52H DB 0A6H,32H,54H,02H,52H DB 64H,74H,0B6H,64H DB 52H,5CH,32H,22H DB 16H,12H,14H,32H,22H DB 16H,12H,14H,22H,32H DB 26H,12H,94H,22H,32H DB 2CH DB 32H,52H DB 36H,22H,14H,54H DB 0ACH,92H,0A2H DB 96H,0A2H,96H,82H DB 3CH,54H DB 36H,22H,14H,54H DB 0ACH,92H,0A2H DB 16H,12H,14H,22H,32H DB 2CH,02H,82H DB 16H,32H,56H,12H DB 0A6H,32H,56H,52H DB 66H,72H,0B6H,62H DB 62H,52H,58H,32H,22H DB 16H,12H,14H,32H,22H DB 16H,12H,14H,22H,32H DB 26H,92H,0A4H,12H,22H DB 1CH DB 00。解決辦法:將定時器1設(shè)定在工作方式1,16位計數(shù),計50ms,效果有很大改觀。b. 當(dāng)音樂為全4拍起始時,此時音樂節(jié)奏與定時器T1中斷頻率錯開,LCD顯示和音樂播放都會好一些。TABLE80: DB 86H,92H,12H,22H,32H,52H,68H,63H,52H,34H,62H,0B2H,0B2H,62H,51H,61H,51H,31H,54H DB 62H,0B2H,0B2H,62H,52H,32H,52H,52H,51H,61H,51H,31H,34H,52H,62H,74H,32H,52H,52H,32H,21H,31H,21H,11H,24H DB 32H,52H,52H,32H,22H,12H,24H,32H,52H,52H,32H,62H,52H,61H,51H,31H,21H,21H,31H,21H,11H,1CH DB 21H,31H,22H,23H,31H,21H,18H,02H,0B2H,0BCH,0B4H,72H,61H,51H,72H,61H,71H,61H,51H,61H,71H,61H,6FH DB 86H,94H,12H,22H,32H,52H,64H,62H,51H,31H,52H,21H,31H,21H,33H,62H,0B2H,0B2H,62H,51H,61H,51H,31H,54H DB 62H,0B2H,72H,61H,51H,51H,61H,51H,31H,54H,61H,0B2H,72H,61H,51H,51H,61H,51H,31H,32H,21H,11H,32H,51H,61H,54H DB 02H,32H,24H,32H,52H,52H,32H,22H,31H,21H,11H,24H,32H,52H,62H,0B2H,72H,61H,51H,61H,51H,31H,32H,52H,52H,32H,62H DB 51H,31H,31H,21H,11H,91H,23H,31H,21H,1CH,12H,24H,32H,62H,51H,31H,34H,0B4H,72H,61H,51H,63H,71H,64H DB 0B2H,54H,72H,62H,71H,61H,54H,61H,51H,31H,21H,34H,73H,61H,54H,22H,32H,52H,22H,36H,52H,62H,61H,31H,32H,21H,11H,21H,11H,91H,81H DB 94H,52H,62H,52H,42H,32H,22H,32H,52H,0B4H,74H,64H,52H,61H,51H,41H,5CH,02H,52H,0B4H,74H,63H,51H,61H,51H,31H,21H DB 00。第三首《看我七十二變》。顯示分十位 CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CCH 。NEXT20: MOV A,40H MOV DPH,52H MOV DPL,53H MOVC A,A+DPTR MOV R2,A JZ STOP ANL A,0FH MOV R1,A MOV A,R2 SWAP A ANL A,0FH JNZ SING CLR TR0 JMP W1。*********************************************寫指令ENABLE: CLR RS CLR RW CLR E LCALL DELAY SETB E RET。寫數(shù)據(jù) CALL WRITE1 DFF: RET。 mov r3,07h clr a mov r0,30h mov r1,31hmm1: mov a,r1 mov r0,a inc r0 inc r1 djnz r3,mm1 pop acc mov r0,a RET。********************************************L50MS EQU 60HL1MS EQU 61HL250MS EQU 62HSEC EQU 65HMIN EQU 64HHOU EQU 63H。 5.選作內(nèi)容:顯示樂曲播放時間或剩余時間二、硬件設(shè)計硬件電路:本設(shè)計中用到了98C51單片機(jī),4*4鍵盤,蜂鳴器,16*2 LCD,七段顯示數(shù)碼管LED。液晶初始化 MOV SP,70H MOV P0,01H 。ks: mov a,0f0h 。SOP: mov a,37h cjne a,01h,A11 LCALL MODD MOV 52H,HIGH TABLE10 MOV 53H,LOW TABLE10 LCALL INITILE2 lcall MAIN0
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