【正文】 。第六首《兩只蝴蝶》。TABLE30: DB 0d4H,84H,94H,82H,92H DB 12H,22H,82H,92H,02H,92H,82H,0d2H DB 82H,92H,14H,84H,02H,0d1H,0d1H DB 0c2H,0d2H,84H,0d2H,0d2H,82H,82H DB 84H,82H,82H,94H,82H,0d2H DB 82H,82H,82H,92H,02H,82H,82H,0d2H DB 0c4H,84H,0d4H,92H,0d2H DB 82H,0d2H,82H,92H,98H DB 04H,94H,88H DB 04H,94H,88H DB 04H,94H,88H DB 04H,94H,88H,04H DB 32H,32H,22H,12H,02H,92H,12H,92H DB 32H,32H,22H,12H,02H,92H,12H,92H DB 32H,32H,22H,12H,02H,92H,12H,22H DB 54H,44H,34H,12H,22H DB 34H,22H,12H,02H,92H,12H,92H DB 32H,32H,22H,12H,02H,92H,12H,92H DB 32H,32H,22H,12H,02H,92H,12H,22H DB 54H,44H,32H,22H,12H,92H DB 00 。顯示分個位 CALL ENABLE CALL WRITE2 MOV A,MIN MOV B,3 MUL AB MOV B,100 DIV AB MOV R2,A MOV A,10 XCH A,B DIV AB MOV A,MIN XRL A,60 JNZ OUTHOUSET: MOV MIN,00H 。***************************************************。SING: DEC A MOV 22H,A RL A MOV DPTR,TABLE00 MOVC A,A+DPTR MOV TH0,A MOV 21H,A MOV A,22H RL A INC A MOVC A,A+DPTR MOV TL0,A MOV 20H,A SETB TR0 SETB TR1W1: LCALL DELAY30 INC 40H LCALL KS 。CAU39。**********************************************寫數(shù)據(jù)WRITE1: MOV R1,00HA1: MOV A,R1 MOVC A,A+DPTR CALL WRITE2 INC R1 CJNE A,0FEH,A1 。顯示分十位 CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CCH 。next1: inc R4 。key1: LCALL key LCALL modd LJMP key1。******************************************* ORG 0000h LJMP main ORG 000BH LJMP TT0 ORG 001BH LJMP T1INT org 1000hmain: 。（3） 用，~,R/W,E的控制信號。單片機課程設(shè)計實驗報告 微機原理課程設(shè)計題 目：數(shù)字音樂盒姓 名： 學 號：指導老師 : 目 錄一、任務(wù)與要求 3二、硬件設(shè)計 3三、軟件設(shè)計 3四、調(diào)試 24五、收獲和體會 25六、參考文獻 25單片機課程設(shè)計實驗報告一、任務(wù)及要求課程設(shè)計題目：數(shù)字音樂盒課程設(shè)計要求：，驅(qū)動蜂鳴器，發(fā)出不同的音調(diào)，從而演奏樂曲（最少三首樂曲，每首不少于30秒） 2．采用LCD顯示信息 3．開機時有英文歡迎提示字符，播放時顯示歌曲序號（或名稱） 4．可通過功能鍵選擇樂曲，暫停，播放。~~D7的控制信號。鍵盤掃描key: nop nop lcall ks jnz k1 。列掃描 mov a,R2 JNB ,n2 ljmp n1n2: ljmp keyn1: rl a mov R2,a ljmp k3。顯示 。按鍵值播放歌曲。顯示分個位 CALL ENABLE CALL WRITE2 MOV A,3AH MOV P0,0CDH 。未到字符串末尾繼續(xù) RETWRITE2: MOV P0,A SETB RS CLR RW CLR E CALL DELAY SETB E RET。,0FEH TABLE3: DB 30H,31H,32H,33h DB 34H,35H,36H,37H DB 38h,39H,41H,42H DB 43H,44H,45H,46H 。有鍵跳出 JNZ STOP LJMP NEXT20。定時器中斷子程序1。**************************************每小時刷新小時顯示一次 MOV A,HOU MOV B,10 DIV AB ADD A,30H 。第一首《精忠報國》。TABLE60: DB 32H,22H,38H,02H,22H,32H,22H,18H,04H,92H,12H,24H,22H,32H,22H,12H,92H,92H,88H,04H,32H,22H DB 38H,02H,22H,32H,22H,18H,04H,92H,12H,24H,22H,32H,22H,21H,92H,12H,28H,04H,32H,22H DB 38H,02H,22H,32H,22H,18H,04H,92H,12H,24H,22H,32H,22H,12H,92H,91H,11H,88H DB 04H,32H,52H,58H,02H,52H,62H,52H,38H,04H,22H,22H,24H,22H,32H,22H,12H,92H,92H DB 12H,12H,1cH,08H,02H,52H,52H,62H,0b2H,72H,72H,62H,32H,22H,22H,22H DB 38H,02H,32H,32H,52H,64H,64H,02H,92H,32H,22H,28H,04H,32H,52H,52H,32H,54H,02H,0b4H,72H DB 62H,72H,34H,02H,62H,62H,72H,62H,52H,32H,22H,02H,32H,22H,32H DB 58H,02H,52H,52H,62H,0b2H,72H,72H,62H,32H,22H,22H,22H DB 38H,02H,32H,32H,52H,64H,64H,02H,92H,32H,22H,28H,04H,32H,52H,52H,32H,54H,02H,0b4H,72H DB 62H,72H,34H,02H,62H,62H,72H,62H,52H,32H,22H,02H,84H,92H,1cH DB 00。第九首十年。4． 編程過程中要注意加注釋或分割線，否則，在程序過