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1、 轻松做一个轻松做一个 LED 汉字显示屏上汉字显示屏上 T像搭积木一样，做一屏LED汉字显示 T每块显示板有两个 16*16 的LED点阵，可以显示两个汉字，两块板可以显示 4 个汉字，TT将这两块显示板和一块 89S51 的CPU板用电缆连接起来，组成一条 4 个汉字的显示屏，TT同样也可以将 4 块显示板组成 8 个字的显示屏，显示屏可以滚动，换屏显示，也可以存储若干条短语，用遥控器调用显示短语。 TCPU板和显示板 T原理图 T4 汉字显示程序，“雨天路滑”“小心慢行”轮流显示。 TORG 00HTTLJMP STARTTTORG 030HTTSTART:MOV A,#00HTTMOV
2、 P0,ATTMOV P2,ATTMOV R3,#200TTD1MS:MOV R5,#250TTF1: DJNZ R5,F1TTDJNZ R3,D1MSTTDIS:MOV R2,#02H ；(分 2 屏显示)TTMOV 20H,#00TTD4: MOV R4,#00HTTMOV R1,#0FFHTTD5: MOV R6,#64 ； （每屏显示 4 个字）TTMOV R0,20HTTD2: MOV A,R4TTMOV P1,A ； （扫描输出）TTMOV A,R0TTMOV DPTR,#TABLE ； （指数据表指针）TTMOVC A,A+DPTR ； （取上半部代码 ）TTMOV P0,ATT
3、INC R0TTMOV A,R0TTMOV DPTR,#TABLETTMOVC A,A+DPTR ； （取下半部代码）TTMOV P2,ATTINC R0TTMOV R3,#50TTF10:DJNZ R3,F10TTMOV A,#00HTTMOV P0,ATTMOV P2,ATTINC R4TTDJNZ R6,D2 ； （4 个字是否取完）TTMOV R4,#00 ； （扫描指针清零） TTDJNZ R1,D5 ； （重复显示）TTMOV 20H,R0 ； （保存数据代码偏移量）TTDJNZ R2,D4 ； （2 屏显示是否完成）TTMOVE:MOV 20H,#00 ； （偏移量清零）TTMO
4、V R4,#00 ； （扫描指针清零）TTM1: MOV R1,#0FFHTTM2: MOV R6,#64TTMOV R0,20HTTM3: MOV A,R4TTMOV P1,ATTMOV A,R0TTMOV DPTR,#TABLE TTJMP STARTTTTABLE: DB 40H,00,40H,00,4FH,0FFH,48H,00TTDB 49H,10H,48H,88H,48H,00,7FH,0FEH ; 雨TTDB 48H,00,49H,10H,48H,8AH,48H,01TTDB 5FH,0FEH,0C8H,00,40H,00,00,00TTDB 02,01,42H,01,42H,0
5、2,42H,04TTDB 42H,08,42H,30H,42H,0C0H,7FH,00 ; 天TTDB 42H,0C0H,42H,30H,42H,08,42H,04TTDB 0C2H,02,46H,03,02,02,00,00TTDB 00,02,7FH,7EH,42H,02,43H,0FCHTTDB 42H,44H,0FEH,44H,48H,80H,10H,0FFH ; 路 TTDB 31H,42H,0EAH,42H,24H,42H,2AH,42HTTDB 31H,42H,21H,0FFH,01,40H,00,00TTDB 08,20H,86H,20H,40H,7FH,61H,80HTTDB
6、 06,00,04,00,0FDH,0FFH,0A5H,50H ;滑TTDB 0A5H,50H,0BDH,50H,85H,52H,85H,51HTTDB 0FDH,0FEH,05,00,06,00,00,00TTDB 00,00,00,10H,00,20H,00,40HTTDB 01,80H,06,02,00,01,0FFH,0FEH ;小TTDB 00,00,04,00,02,00,01,00TTDB 00,80H,00,60H,00,00,00,00TTDB 00,20H,00,40H,03,80H,00,00TTDB 0FH,0FCH,00,02,80H,02,40H,02 ;心TTDB
7、 38H,02,10H,02,00,02,00,0EHTTDB 02,00,01,00,00,0E0H,00,00TTDB 02,00,1CH,00,00,00,0FFH,0FFHTTDB 10H,00,0BH,0C1H,0FAH,51H,0AAH,5AHTTDB 0ABH,0D4H,0AAH,54H,0ABH,0D4H,0AAH,5AH ;慢TTDB 0FAH,52H,07,0C1H,02,01,00,00TTDB 00,40H,08,80H,11H,00,23H,0FFHTTDB 0C4H,00,02,00,42H,00,42H,00TTDB 42H,00,42H,02,42H,01,43
8、H,0FEH ;行TTDB 0C2H,00,46H,00,02,00,00,00TTEND T小心慢行 T一个 8 汉字连续左移程序：TTORG 00HTTLJMP STARTTTORG 030HTTSTART: MOV A,#00HTTMOV P0,ATTMOV P2,ATTMOV R3,#200TTD1MS: MOV R5,#250TTF1: DJNZ R5,F1TTDJNZ R3,D1MSTTDIS: MOV R2,#01H TTMOV 20H,#00TTD4: MOV R4,#00HTTMOV R1,#0FFHTTD5: MOV R6,#128 TTMOV R0,20HTTD2: MO
9、V A,R4TTMOV P1,A TTMOV A,R0TTMOV DPTR,#TABLE TTMOVC A,A+DPTR TTMOV P0,ATTINC R0TTMOV A,R0TTMOV DPTR,#TABLETTMOVC A,A+DPTR TTMOV P2,ATTINC R0TTMOV R3,#50TTF10: DJNZ R3,F10TTMOV A,#00HTTMOV P0,ATTMOV P2,ATTINC R4TTDJNZ R6,D2 TTMOV R4,#00 TTDJNZ R1,D5 TTMOV 20H,R0 TTDJNZ R2,D4TTMOV R7,#03HTTMOVE: MOV 2
10、0H,#00 TTMOV R4,#00 TTM1: MOV R1,#01FHTTM2: MOV R6,#128TTMOV R0,20HTTM3: MOV A,R4TTMOV P1,ATTMOV A,R0TTMOV DPTR,#TABLETTMOVC A,A+DPTRTTMOV P0,ATTINC R0TTMOV A,R0TTMOV DPTR,#TABLETTMOVC A,A+DPTRTTMOV P2,ATTINC R0TTMOV R3,#25TTDJNZ R3,$TTMOV A,#00TTMOV P0,ATTMOV P2,ATTINC R4TTDJNZ R6,M3TTMOV R4,#00TTD
11、JNZ R1,M2TTMOV A,20HTTADD A,#08TTMOV 20H,ATTXRL A,#192TTJNZ M1TTDJNZ R7,MOVE TTJMP DISTTTABLE: DB 40H,00,40H,00,4FH,0FFH,48H,00TTDB 49H,10H,48H,88H,48H,00,7FH,0FEH TTDB 48H,00,49H,10H,48H,8AH,48H,01TTDB 5FH,0FEH,0C8H,00,40H,00,00,00TTDB 02,01,42H,01,42H,02,42H,04TTDB 42H,08,42H,30H,42H,0C0H,7FH,00 T
12、TDB 42H,0C0H,42H,30H,42H,08,42H,04TTDB 0C2H,02,46H,03,02,02,00,00TTDB 00,02,7FH,7EH,42H,02,43H,0FCHTTDB 42H,44H,0FEH,44H,48H,80H,10H,0FFH TTDB 31H,42H,0EAH,42H,24H,42H,2AH,42HTTDB 31H,42H,21H,0FFH,01,40H,00,00TTDB 08,20H,86H,20H,40H,7FH,61H,80HTTDB 06,00,04,00,0FDH,0FFH,0A5H,50H TTDB 0A5H,50H,0BDH,5
13、0H,85H,52H,85H,51HTTDB 0FDH,0FEH,05,00,06,00,00,00TTDB 00,00,00,10H,00,20H,00,40HTTDB 01,80H,06,02,00,01,0FFH,0FEH TTDB 00,00,04,00,02,00,01,00TTDB 00,80H,00,60H,00,00,00,00TTDB 00,20H,00,40H,03,80H,00,00TTDB 0FH,0FCH,00,02,80H,02,40H,02 TTDB 38H,02,10H,02,00,02,00,0EHTTDB 02,00,01,00,00,0E0H,00,00TTDB 02,00,1CH,00,00,00,0FFH,0FFHTTDB 10H,00,0BH,0C1H,0FAH,51H,0AAH,5AHTTDB 0ABH,0D4H,0AAH,54H,0ABH,0D4H,0AAH,5AH TTDB 0FAH,52H,07,0C1H,02,01,00,00TTDB 00,40H,08,80H,11H,00,23H,0FFHTTDB 0C4H,00,02,00,42H,00,42H,00TTDB 42H,00,42H,02,42H,01,43H,0FEH TTDB 0C2H,00,46H,00,02,00,00,00TTEN DT
