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1、RS BIT P2.0;定义液晶显示端口标号RW BIT P2.1E BIT P2.2ORG 0000HLJMP MAINORG 000BHLJMP TT0ORG 001BHLJMP TIINTORG 1000HMAIN:;-液晶初始化MOV SP,#70HMOV P0,#01H;清屏CALL ENABLEMOV P0,#38H;8 位，2 行显示LCALL ENABLEMOV P0,#0FH;屏显 ON,光标 ON,闪烁 ONLCALL ENABLEMOV P0,#06H;计数地址加 1，显示幕 ONLCALL ENABLE;-内在初始化LCALL INITIL;-KEY1:LCALL KE
2、YLCALL MODDLJMP KEY1;-键盘扫描KEY:NOPNOP LCALL KSJNZ K1;有按键转到 K1LCALL KAIJILCALL SOPXN:LJMP KEYK1:LCALL MODDLCALL MODDLCALL KSJNZ K2LJMP KEYK2:MOV R2,#0FEH;读键盘MOV R4,#00HK3:MOV A,R2MOV P1,AMOV A,P1JB ACC.4,L1;为 1 跳转，第一行无按键MOV A,#00HLJMP LKL1:JB ACC.5,L2MOV A,#04HLJMP LKL2:JB ACC.6,L3MOV A,#08HLJMP LKL3:
3、JB ACC.7,NEXT1MOV A,#0CH;-LK:ADD A,R4PUSH ACCK4:LCALL DELAY1;若同时有其他键，则等待LCALL KSJNZ K4;-MOV R3,#07HCLR AMOV R0,#30HMOV R1,#31HMM1:MOV A,R1MOV R0,AINC R0INC R1DJNZ R3,MM1POP ACCMOV R0,ARET;-NEXT1;INC R4;-列扫描MOV A,R2JNB ACC.3,N2LJMP N1N2:LJMP KEYN1:RL AMOV R2,ALJMP K3;-KS:MOV A,#0F0H;判断 P1 口MOV P1,ANO
4、PNOP MOV A,P1CPL AANL A,#0F0HRET;-DELAY1:SETB RS0DL:MOV R5,#0AHDL2:MOV R6,#63DL3:NOPNOP DJNZ R6,DL3DJNZ R5,DL2CLR RS0RET;30H-37H 初值为零;-INITIL:MOV R3,#08HMOV R0,#30HM1:MOV R0,#00HM1:MOV R0,#00HM1:MOV R0,#00HINC R0DJNZ R3,M1RET;-;显示;-MODD:MOV P0,#8EHLCALL ENABLEMOV A,37HMOV DPTR,#TABLE3MOVC A,A+DPTRLC
5、ALL WRITE2RET;-;开机提示字;-KAIJI:MOV A,37HCJNE A,#0FH,DFFMOV P0,#80H;设光标地址LCALL ENABLEMOV DPTR,#TABLE1;写数据LCALL WRITE1DFF:RET;-;按键值播放歌曲;-SOP:MOV A,37HCJNE A,#01H,A11LCALL MODDMOV 52H,#HIGH TABLE10MOV 53H,#LOW TABLE10LCALL INITILE2LCALL MAIN0A11:CJNE A,#02H,A22LCALL MODDMOV 52H,#HIGH TABLE20MOV 3H,#LOW T
6、ABLE20LCALL INITILE2LCALL MAIN0AAA:RET;-INITILE2:MOV L50MS,#20MOV L1MS,#00HMOV L250MS,#00HMOV SEC,#00HMOV MIN,#00HMOV HOU,#00HMOV A,HOUMOV B,#10HDIV ABADD A,#30H;将 BCD 码转化为 ASIIC 码MOV P0,#0C8H;显示小时十位CALL ENABLECALL WRITE2MOV A,BADD A,#30HMOV P0,#0C9H;显示小时个位CALL ENABLECALL WRITE2MOV A,#3AHMOV P0,#0DH
7、;显示冒号CALL ENABLECALL WRITE2MOV A,MINMOV B,10DIV ABADD A,#30HMOV P0,#0CBH;显示分十位CALL ENABLECALL WRITE2MOV A,BADD A,#30HMOV P0,#0CDH;显示冒号CALL ENABLECALL WRITE2MOV A,SECMOV B,#10DIV ABADD A,#30HMOV P0,#0CEH;显示秒十位CALL ENABLECALL WRITE2MOV A,BADD A,#30HMOV P0,#0CFH;显示秒个位CALL ENABLECALL WRITE2MOV P0,#0C0H;
8、设光标地址CALL ENABLECALL WRITE1RET;-写指令ENABLE:CLR RSCLR RWCLR ELCALL DELAYSETB ERET;-写数据WRITE1:MOV R1,#00HA1:MOV A,R1MOVC A,A+DPTRCALL WRITE2INC R1CJNE A,#OFEH,A1;未到字符串末尾继续RETWRITE2:MOV P0,ASETB RSCLR RWLCR ECALL DELAYSETB ERET;-TABDB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8HDB 80H,90H,88H,83H,0C6H,0A1H,86H,
9、8EHTAB1:DB 89H,86H,0C7H,0C7H,0C0HTAB2:DB 0C6H,88H,0C0HTABLE1:DBWELCOM HERE,0FEHTABLE2:DBDFF WB,0FEHTABLE3:DB 30H,31H,32H,33HDB 34H,35H,36H,37HDB 38H,39H,41H,42HDB 43H,44H,45H,46H;-释放歌曲程序;-MAIN0:MOV TMOD,#11HMOV IE,#8AHMOV TH1,#3CHMOV TL1,#0B0HLCALL KSJNZ TTM12MOV 40H,#00H;-NEXT20:MOV A,40HMOV DPH,52
10、HMOV DPL,53HMOVC A,A+DPTRMOV R2,AJZ STOPANL A,#0FHMOV R1,AMOV A,R2SWAP AANL A,#0FHJNZ SINGCLR TR0JMP W1;-SING:DEC AMOV 22H,ARL AMOV DPTR,#TABLE00MOVC A,A+DPTRMOV TH0,AMOV 21H,AMOV A,22HRL AINC AMOVC A,A+DPTRMOV TL0,AMOV 20H,ASETB TR0SETB TR1W1:LCALL DELAY30INC 40HLCALL KS;有键跳出JNZ STOPLJMP NEXT20;-ST
11、OP;CLR TR0CLR TR1LJMP AMIN0;-TTM12:LCALL K2MOV A,37HCJNE A,#0EH,TTM13CLR TR1LCALL DELAY1TTM120:LCALL KSLCALL DELAY1JZ TTM120LCALL K2MOV A,37HCJNE A,#0EH,TTM120SETB TR1LJMP NEXT20TTM13:CJNE A,#0CH,TTM14MOV A,52HINC AMOV 52H,AMOV A,53HINC AMOV 53H,AMOV A,36HINC AMOV 37H,ALJMP TTM2TTM14:CJNE A,#0DH,TTM
12、2MOV A,52HDEC AMOV 52H,AMOV A,53HDEC AMOV 53H,AMOV A,36HDEC AMOV 37H,ATTM2:RETRET;-TABLE00;DW 64580 ,64684 ,64777 ,64820DW 64898,64968,65030,64260DW 64400,64524,65058,63835,64021;-;第二首月亮代表我的心;-TABLE20:DB 02H,82HDB 16H,32H,54H,02H,52HDB 0A6H,32H,54H,02H,52HDB 64H,74H,0B6H,64HDB 52H,5CH,32H,22HDB 16H,12H,14H,32H,22HDB 16H,12H,14H,22H,32HDB 26H,12H,94H,22H,32HDB 2CHDB 32H,52HDB 36H,22H,14H,54HDB 0ACH,92H,0A2HDB 96H,0A2H,96H,82HDB 3CH,54HDB 36H,22H,14H,54HDB 0ACH,92H,0A2HDB 96H,0A2H,96H,82HDB
