【正文】 TEMP_TH,A ANL A,0FH MOV 63H,A MOV A,TEMP_TH ANL A,0F0H SWAP A MOV 64H,A MOV A,TEMP_TL 。顯示數(shù)據(jù) RET。 顯示子程序。====================================。====================================GET_TEMPER: SETB DQBCD:LCALL INIT_1820 JB FLAG,S22 LJMP BCDS22:LCALL DELAY1 MOV A,0CCH LCALL WRITE_1820 MOV A,44H LCALL WRITE_1820 NOP LCALL DELAY LCALL DELAYCBA:LCALL INIT_1820 JB FLAG,ABC LJMP CBAABC:LCALL DELAY1 MOV A,0CCH LCALL WRITE_1820 MOV A,0BEH LCALL WRITE_1820 LCALL READ_1820。寫DS18B20的程序WRITE_1820: MOV R2,8 CLR CWR1: CLR DQ MOV R3,6 DJNZ R3,$ RRC A MOV DQ,C MOV R3,23 DJNZ R3,$ SETB DQ NOP DJNZ R2,WR1 SETB DQ RETREAD_1820: MOV R4,2 。地位存入36H RE00: MOV R2,8 RE01: CLR C SETB DQ NOP NOP CLR DQ NOP NOP NOP SETB DQ MOV R3,7 DJNZ R3,$ MOV C,DQ MOV R3,23 DJNZ R3,$ RRC A DJNZ R2,RE01 MOV R1, A DEC R1 DJNZ R4,RE00 RET 。XIAOSHU MOV A,TEMPER_XIAO ANL A,0F0H SWAP A MOV 66H, A RETTEMP_TAB:DB 00H,01H,02H,03H,04H,05H,06H,07HDB 08H,09H,10H,11H,12H,13H,14H,15HDB 16H,17H,18H,19H,20H,21H,22H,23HDB 24H,25H,26H,27H,28H,29H,30H,31HDB 32H,33H,34H,35H,36H,37H,38H,39HDB 40H,41H,42H,43H,44H,45H,46H,47HDB 48H,49H,50H,51H,52H,53H,54H,55HDB 56H,57H,58H,59H,60H,61H,62H,63HDB 64H,65H,66H,67H,68H,69H,70H,71HDB 72H,73H,74H,75H,76H,77H,78H,79HDB 80H,81H,82H,83H,84H,85H,86H,87HDB 88H,89H,90H,91H,92H,93H,94H,95HDB 96H,97H,98H,99H。延時子程序 DELAY: MOV R6,250 MOV R6,250 DJNZ R6,$ RETDELAY1: MOV R7,20H DJNZ R7,$ RETDELAY2: MOV R7,02H DL0: MOV R6,0FFH DL1: DJNZ R6,DL1 DJNZ R7,DL0 RETDELAY3: MOV R7,01FH DLY: MOV R6,0F9H DLY1: DJNZ R6,DLY1 DJNZ R7,DLY RET WAIT: MOV R5,05H LP1: MOV R6,0FFH DJNZ R6,$ DJNZ R5,LP1 RET WA: MOV R5,15 D: MOV R7,01FH DY: MOV R6,0F9H D1: DJNZ R6,D1 DJNZ R7,DY DJNZ R5,D RET END課程設計成績:項 目業(yè)務考核成績（70%）（百分制記分）平時成績（30%）（百分制記分）綜合總成績（百分制記分）注:教師按學生實際成績（平時成績和業(yè)務考核成績）登記并錄入教務MIS系統(tǒng)，由系統(tǒng)自動轉化為“優(yōu)秀（90～100分）、良好（80～89分）、中等（70～79分）、及格（60～69分）和不及格（60分以下