【正文】 LOOP7: MOV B,01H RETLOOP6: MOV B,02H RETLOOP5: MOV B,04H RETLOOP4: MOV B,06H RETLOOP3: MOV B,08H RETLOOP2: MOV B,0AH RETLOOP1: MOV B,0CH RETLOOP0: MOV B,0DH RET。調(diào)光延時時間控制DLX: MOV R2,BDLX1: LCALL DELAY DJNZZ R2,DLX1RET。延時程序DELAY: MOV R0,OFFHDELAY1: DJNZ R0,DELAY1RET。 READ1: CLR A MOV DPH,A MOV DPL,AHARD1: JB ,HARD11 INC DPTR NOP NOP AJMP HARD1HARD11: MOV A,DPH JZ READOUTT0 CLA AREAD11: INC AREAD12: JNB ,READ12 MOV R1,06HREAD13: JNB ,READ13 DEC A DEC A JZ FUN0 DEC A JZ FUN1 DEC A JZ FUN2 DEC A JZ FUN3 DEC A JZ FUN4 DEC A JZ FUN5 DEC A JZ FUN6 DEC A JZ FUN7 NOP NOP LJMP READOUTT0。主程序START: LCALL CLEARMEMIO LCALL LOOP。編碼發(fā)射程序REMOTE: MOV R1,A LJMP OUT3OUT: MOV R0,55HOUT1: SETB ET1 SETB TR1 NOP NOP NOP NOP NOP DJNZ R0,OUT1 MOV R0,32HOUT2: CLR TR1 CLR ET1 CLR NOP NOP NOP NOP NOP DJNZ R0,OUT2 DJNZ R1,OUT LCALL DL500MS RETOUT3: MOV R0,0FFH LJMP OUT1延時 513μSDELAY: MOV R2,0FFHDELAY1: DJNZ R2,DELAY1 RET10ms 延時程序DL10MS: MOV R3,14HDL10MS1: LCALL DELAY DJNZ R3,DL10MS1 RET。KEYFUN06: MOV A,08H LJMP REMOTE RET。KEYFUN04: MOV A,06H LJMP REMOTE RET。KEYFUN02: MOV A,04H LJMP REMOTE RET。KEYFUN00: MOV A,02H LJMP REMOTE RET。KEYVAL4: MOV DPTR,KEYVALTAB MOV B,A CLR A MOV R0,AKEYVAL5: MOV A,R0 SUBB A,08H JNC KEYOUT MOV A,R0 MOVC A,A+DPTR INC R0 CJNE A,B,KEYVAL5 DEC R0 MOV A,R0 ADD A,R2 MOV B,A RL A ADD A,B MOV DPTR,KEYFUNTAB JMP A+DPTRKEYFUNTAB: LJMP KEYFUN00 LJMP KEYFUN01 LJMP KEYFUN02 LJMP KEYFUN03 LJMP KEYFUN04 LJMP KEYFUN05 LJMP KEYFUN06 LJMP KEYFUN07KEYVALTAB DB 0FEH,0FDH,0FBH,0F7H,0EFH,ODFH,0BFH,7FH。KEYVAL2: MOV R2,10H LJMP KEYVAL4。KEYVAL0: MOV R2,00H LJMP KEYVAL4。 T1 中斷服務(wù)程序INTT1: CPL RET1KEYWORK: MOV KEYY,0FFH CLR KEYX0 CLR KEYX1 CLR KEYX2 CLR KEYX3 MOV A,KEYY MOV B,A CLNE A,0FFHKKEYHITKEYOUT: RET。在這次設(shè)計中，樸老師不厭其煩的給我講解問題和修正錯誤，在此表示衷心的感謝！！附錄 （計算機(jī)程序清單）偽定義: KEYX0 EQU KEYX1 EQU KEYX2 EQU KEYX3 EQU KEYY EQU P0 主 程 序 和 中 斷 程 序 入 口ORG 0000HORG AJMP STARTORG