【正文】 調(diào)光控制程序LOOP: MOV A,P1 SUBB A,0FFH JZ LOOP7MOV A,P1 SUBB A,0FEH JZ LOOP6 MOV A,P1 SUBB A,0FDH JZ LOOP5 MOV A,P1 SUBB A,0FCH JZ LOOP4 MOV A,P1 SUBB A,0FBH JZ LOOP3 MOV A,P1 SUBB A,0FAH JZ LOOP2 MOV A,P1 SUBB A,0F9H JZ LOOP1 MOV A,P1 SUBB A,0F8H JZ LOOP0RET。延時 10msDL10MS: MOV R1,14HDL10MS1: LCALL DELAY DJNZ R1,DL10MS1RET。 RETKEYFUN00: MOV A,02H LJMP REMOTE RETKEYFUN01: MOV A,03H LJMP REMOTE RET22KEYFUN02: MOV A,04H LJMP REMOTE RETKEYFUN03: MOV A,05H LJMP REMOTE RETKEYFUN04: MOV A,06H LJMP REMOTE RETKEYFUN05: MOV A,07H LJMP REMOTE RETKEYFUN06: MOV A,08H LJMP REMOTE RETKEYFUN07: MOV A,09H LJMP REMOTE RET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 R0,0FFH23 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 END主程序和中斷程序入口 ORG 0000H LJMP START ORG 0003H LJMP INTEX0 ORG 000BH RETI ORG 0013H RETI ORG 001BH RETI ORG 0023H RETI ORG 002BH RETI初始化程序CLEARMEMIO: CLR A DEC A MOV P0,A MOV P1,A MOV P2,A MOV P3,ACLEARMEM: MOV IE,00H SETB EX0 SETB EA RET主程序START: LCALL CLEARMEMIO LCALL LOOPMAIN: JB ,MAIN LCALL DLX CLR 24 LCALL DELAY SETB LJMP MAIN NOP NOP LJMP STAR INTEX0: CLR EX0 JNB ,READ1READOUTT0: SETB EX0 RET1READ1: