【正文】 TIME:300sTAB9:DB 54H,49H,4DH,45H,3AH,33H,30H,30H,73H,20H,20H,20H,20H,20H,20H,20H,20HEND。TIME:30sTAB7:DB 54H,49H,4DH,45H,3AH,33H,30H,73H,20H,20H,20H,20H,20H,20H,20H,20H。STALL:03TAB5:DB 53H,54H,41H,4CH,4CH,3AH,30H,33H,20H,20H,20H,20H,20H,20H,20H,20H。STALL:01 檔位11TAB3:DB 53H,54H,41H,4CH,4CH,3AH,30H,31H,20H,20H,20H,20H,20H,20H,20H,20H。檔位00DB 53H,54H,41H,4CH,4CH,3AH,30H,30H,20H,20H,20H,20H,20H,20H,20H,20HTAB2:。 =================讀取數(shù)據(jù)表并將數(shù)據(jù)寫入子程序====================WRITE1: MOV R1,00HA1: MOV A,R1 MOVC A,A+DPTR LCALL WR_DATA INC R1 CJNE A,00H,A1 RET。判斷液晶顯示器是否忙的子程序 CLR RS SETB RW CLR E NOP SETB E JB ,BUSY 。寫入控制命令的子程序 CLR RW CLR E LCALL BUSY SETB E RET。顯示完成,程序停車 RET。判斷液晶模塊是否忙? SETB E 。E=0 。RW=0 。======================寫數(shù)據(jù)子程序==================================WR_DATA: MOV P1,A SETB RS 。第二行的第一個(gè)位置 LCALL WR_CODE JB SJ00,LCD5 。調(diào)用寫入命令子程序 MOV A,MRD CJNE A,01H,LCD1 MOV DPTR,TAB3 JMP LCDALCD1: CJNE A,02H,LCD2 MOV DPTR,TAB4 JMP LCDALCD2: CJNE A,03H,LCD3 MOV DPTR,TAB5 JMP LCDALCD3: CJNE A,04H,LCD4 MOV DPTR,TAB6 JMP LCDALCD4: MOV DPTR,TAB1 。調(diào)用寫入命令子程序 MOV P1,080H 。調(diào)用寫入命令子程序 MOV P1,0FH 。調(diào)用寫入命令子程序 MOV P1,06H。調(diào)用寫入命令子程序 MOV P1,038H 。調(diào)用寫入命令子程序 MOV P1,02H 。================LCD初始化子程序==============================LCD_INIT: MOV P1,01H 。====================延時(shí)1400US子程序 ===========================DY1400US: MOV R6,14L2G: MOV R4,2L3G: MOV R5,15 DJNZ R5,$ DJNZ R4,L3G DJNZ R6,L2G RET。====================延時(shí)5Ms子程序 ===============================DY5MS: MOV R6,25L2B: MOV R4,2L3B: MOV R5,32 DJNZ R5,$ DJNZ R4,L3B DJNZ R6,L2B RET。====================延時(shí)20Ms子程序 =============================DY20MS: MOV R6,100L2: MOV R4,2L3: MOV R5,32 DJNZ R5,$ DJNZ R4,L3 DJNZ R6,L2 RET。====================延時(shí)35Ms子程序 ============================DY35MS: MOV R6,175L2E: MOV R4,2L3E: MOV R5,32 DJNZ R5,$ DJNZ R4,L3E DJNZ R6,L2E RET。置循環(huán)次數(shù)PINT03: RRC A INC R3 JNC PINT03PINT04: MOV A,R3 CLR C RLC A RLC A ADD A,R1 MOV MRD,A 。取列號(hào) DEC R1 JNC PINT01PINT02: MOV A,R2 。======================================================== MOV R1,05H 。======================================================== MOV P1,0F0H MOV A,P1 CPL A ANL A,0F0H 。====================掃描鍵盤程序==================================SCANKEY: PUSH ACC PUSH PSW CLR EX0 MOV P1,0FH MOV A,P1 CPL A ANL A,0FH MOV R2,A 。按鍵標(biāo)志位 SETB EX1 。====================INT1的中斷處理===============================KEY_INT1: PUSH ACC PUSH PSW CLR EX1 。置REC的標(biāo)志位EXIT: SETB EX0 。送存貯單元中 INC R1 DJNZ R2,PP MOV A,MRD CPL A CJNE A,31H,EXIT 。送C中 CPL C RRC A DJNZ R3,JJJJ 。右移的次數(shù)JJJJ: JNB ,$ 。 DJNZ R7,SB1 。檢測為0時(shí)，引導(dǎo)碼過 JB ,$ 。避開9MS時(shí)間的引導(dǎo)碼SB: JNB ,EXIT 。==========INT0中斷處理程序：對(duì)接收數(shù)據(jù)進(jìn)行接收 =================YAOKONG_INT0: PUSH ACC PUSH PSW CLR EX0 。1小時(shí)到后向下執(zhí)行 CLR SJ01 JMP GRET0LOOP_2H: CJNE A,10,GRET1 。定時(shí)2小時(shí)的處理 JB SJ02,LOOP_2H 。給50MS的寄存器給初值 INC SEN MOV A,SEN CJNE A,30,GRET1 。定時(shí)50MS MOV TL0,0B0H DJNZ CUZHI,GRET1 。====================T0定時(shí)中斷處理=============================IT0P: PUSH ACC 。開關(guān)機(jī)處理程序 CLR STALLPOTHER: JMP MAIN 。=======================================================KEY4: CJNE A,04H,KEY5 SETB CALL DY35MS MOV A,MRD CJNE A,05H,KEY41 SETB SJ00 SETB TR0 JMP KEY4 KEY41: CJNE A,06H,KEY42 SETB SJ01 SETB TR0 JMP KEY4KEY42: CJNE A,07H,KEY43 SETB SJ02 SETB TR0 JMP KEY4KEY43: JMP KEY4。========================================================KEY2: CJNE A,02H,KEY3 SETB CALL DY20MS CLR CALL DY30MS MOV A,MRD CJNE A,05H,KEY21 SETB SJ00 SETB TR0 JMP KEY2 KEY21: CJNE A,06H,KEY22 SETB SJ01 SETB TR0 JMP KEY2KEY22