【正文】 06H LCALL LCD_CMD 。 LJMP MUSIC0 CLR 01H RETKEY5: 。CJNE A,0EDH,KEY4 。 MOV 40H,1 MOV 35H,0 MOV TL0,0 。 MOV P1,0FH 。關(guān)計(jì)數(shù)，因?yàn)?0ms會(huì)影響節(jié)拍的計(jì)數(shù) LCALL D10MS 。37H存時(shí)間的高位 MOV A,34H 。－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－ MOV R4,02HDELAY1: NOP DJNZ R4,DELAY1 NOP DJNZ R3,DELAY RETMUSIC_1:DB 026H,020H,020H,020H,020H,020H,026H,010H,020H,010H,020H,080H,026H,020H,030H,020HDB 030H,020H,039H,010H,030H,010H,030H,080H,026H,020H,020H,020H,020H,020H,01CH,020HDB 020H,080H,02BH,020H,026H,020H,020H,020H,02BH,010H,026H,010H,02BH,080H,026H,020HDB 030H,020H,030H,020H,039H,010H,026H,010H,026H,060H,040H,010H,039H,010H,026H,020HDB 030H,020H,030H,020H,039H,010H,026H,010H,026H,080H,026H,020H,02BH,010H,02BH,010HDB 02BH,020H,030H,010H,039H,010H,026H,010H,02BH,010H,02BH,020H,02BH,040H,040H,020HDB 020H,010H,020H,010H,02BH,010H,026H,030H,030H,080H,018H,020H,018H,020H,026H,020HDB 020H,020H,020H,040H,026H,020H,02BH,020H,030H,020H,030H,020H,01CH,020H,020H,020HDB 020H,080H,01CH,020H,01CH,020H,01CH,020H,030H,020H,030H,060H,039H,010H,030H,010HDB 020H,020H,02BH,010H,026H,010H,02BH,010H,026H,010H,026H,010H,02BH,010H,02BH,080HDB 018H,020H,018H,020H,026H,020H,020H,020H,020H,060H,026H,010H,02BH,020H,030H,020HDB 030H,020H,01CH,020H,020H,020H,020H,080H,026H,020H,030H,010H,030H,010H,030H,020HDB 039H,020H,026H,010H,02BH,010H,02BH,020H,02BH,040H,040H,010H,040H,010H,020H,010HDB 020H,010H,02BH,010H,026H,030H,030H,080H,000HMUSIC_2:DB 018H, 030H, 01CH, 010H//格式為: 頻率常數(shù), 節(jié)拍常數(shù), 頻率常數(shù), 節(jié)拍常數(shù), DB 020H, 040H, 01CH, 010H DB 018H, 010H, 020H, 010H DB 01CH, 010H, 018H, 040H DB 01CH, 020H, 020H , 020H DB 01CH, 020H, 018H , 020H DB 020H, 080H, 0FFH , 020H DB 030H, 01CH, 010H , 018H DB 020H, 015H, 020H , 01CH DB 020H, 020H, 020H , 026H DB 040H, 020H, 020H , 02BH DB 020H, 026H, 020H , 020H DB 020H, 030H, 080H , 0FFH DB 020H, 020H, 01CH , 010H DB 018H, 010H, 020H , 020H DB 026H, 020H, 02BH , 020H DB 030H, 020H, 02BH , 040H DB 020H, 020H, 01CH , 010H DB 018H, 010H, 020H , 020H DB 026H, 020H, 02BH , 020H DB 030H, 020H, 02BH , 040H DB 020H, 030H, 01CH , 010H DB 018H, 020H, 015H , 020H DB 01CH, 020H, 020H , 020H DB 026H, 040H, 020H , 020H DB 02BH, 020H, 026H , 020H DB 020H, 020H, 030H , 080H DB 020H, 030H, 01CH , 010H DB 020H, 010H, 01CH , 010H DB 020H, 020H, 026H , 020H DB 02BH, 020H, 030H , 020H DB 02BH, 040H, 020H , 015H DB 01FH, 005H, 020H , 010H DB 01CH, 010H, 020H , 020H DB 026H, 020H, 02BH , 020H DB 030H, 020H, 02BH , 040H DB 020H, 030H, 01CH , 010H DB 018H, 020H, 015H , 020H DB 01CH, 020H, 020H , 020H DB 026H, 040H, 020H , 020H DB 02BH, 020H, 026H , 020H DB 020H, 020H, 030H , 030H DB 020H, 030H, 01CH , 010H DB 018H, 040H, 01CH , 020H DB 020H, 020H, 026H , 040H DB 013H, 060H, 018H , 020H DB 015H, 040H, 013H , 040H DB 018H, 080H, 000H MUSIC_3:DB 1cH,20H,19H,20H,18H,30H,19H,20H,18H,40H,13H,40H,19H,0c0H DB 26H,20H,26H,20H,1cH,40H,20H,20H,1cH,40H,18H,40H,20H,80H DB 26H,20H,26H,20H,24H,30H,26H,20H,24H,20H,18H,30H,26H,80H DB 18H,20H,18H,20H,18H,20H,19H,30H,24H,20H,24H,40H,19H,40H DB 19H,80H,1cH,20H,19H,20H,18H,30H,19H,20H,18H,40H,13H,40H DB 19H,80H,26H,20H,26H,20H,1cH,30H,20H,20H,1cH,40H,18H,40H DB 20H,80H,26H,20H,24H,40H,18H,20H,19H,20H,19H,40H,18H,40H DB 15H,20H,15H,20H,13H,20H,18H,40H,18H,40H,19H,20H,1cH,20H DB 1cH,20H,19H,40H,20H,40H,1cH,80H,18H,20H,15H,20H,13H,40H DB 2bH,20H,13H,40H,10H,40H,15H,80H,20H,20H,20H,20H,18H,20H DB 19H,20H,18H,40H,13H,40H,13H,80H,1cH,20H,19H,20H,18H,40H DB 19H,40H,15H,20H,15H,20H,18H,30H,20H,20H,20H,40H,12H,40H DB 13H,40H,15H,40H,18H,40H,13H,0c0H,13H,40H,0eH,80H,10H,40H DB 10H,40H,13H,20H,15H,20H,18H,40H,18H,20H,15H,40H,18H,20H DB 15H,20H,15H,20H,10H,40H,13H,80H,13H,40H,10H,40H,12H,40H DB 13H,20H,15H,20H,18H,40H,18H,20H,15H,40H,18H,20H,15H,20H DB 15H,20H,09H,40H,1cH,80H,1cH,20H,19H,20H,1cH,0c0H,00HLCD_SET: MOV A,38H LCALL LCD_CMD_NC LCALL D5MS MOV A,38H LCALL LCD_CMD_NC LCALL D5MS MOV A,08H 。到了1s,時(shí)間加1 ,進(jìn)行十進(jìn)制調(diào)整 ADD A,1 DA A MOV 35H,A MOV 3AH,DPL 。 CLR 00HMUSICF: LJMP MUSIC0T0_INT:。 MOV A,R6 MOV R3,A LCALL DELAY LCALL KEYPAN 。表序號(hào)清0MUSIC1: CLR A MOVC A,A+DPTR 。LCD初始化 LCALL LCD_WEL 。36H存時(shí)間的低位 MOV 37H,0 。中斷允許 MOV 31H,36 。跳轉(zhuǎn)指令，程序跳轉(zhuǎn)到MAIN處 ORG 000BH 。－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－。蜂鳴器采用的是5V有源蜂鳴器，通過三極管驅(qū)動(dòng)，要接限流電阻。通過STCisp軟件將音樂程序載入單片機(jī)中按下S13播放第一到三首歌對(duì)應(yīng)的歌曲，按下S4暫停，再按下S4播放。CJNE A,0EBH,KEY5 JB ,KEY5 MOV 34H,3 。 LCALL D1S 。 CJNE A,0EEH,KEY3 。再次判斷是否摁下 JNB 00H,KEYPAN 。判斷是否摁下 JNB 00H,KEYPAN 。判斷是否查到00H，查到就顯示歌曲號(hào) LCALL WDATA INC DPTR SJMP WRITE1WRITE10: MOV A,39H 。此時(shí)36H存時(shí)間低位的ASCII ADD A,30H MOV 36H,A MOV A