基于單片機的溫度控制系統設計本科畢業論文-資料下載頁

　　

【正文】 MOV 34H,00 MOV R6,30H CJNE R6,00,JT2 SJMP JT22 JT2: MOV A,33H ADD A,100 MOV 33H,A MOV A,34H ADDC A,00 MOV 34H,A DJNZ R6,JT2 JT22:CLR RS1 CLR RS0 RET DTOB1: SETB RS0 SETB RS1 MOV A,42H MOV B,10 MUL AB ADD A,43H MOV 44H,A MOV 45H,00 MOV R6,41H CJNE R6,00,JJT2 SJMP JJT22 JJT2: MOV A,44H ADD A,100 MOV 44H,A MOV A,45H ADDC A,00 MOV 45H,A DJNZ R6,JJT2 JJT22: CLR RS1 CLR RS0 RETWR_18B20: MOV R2,08H CLR C SETB DQ MOV R3,02H DJNZ R3,$ NOP WR1: CLR DQ MOV R3,03H DJNZ R3,$ RRC A MOV DQ,C MOV R3,20 DJNZ R3,$ SETB DQ MOV R3,03H DJNZ R3,$ DJNZ R2,WR1 SETB DQ RETRD_18B20: MOV R4,02H MOV R1,22H RE0: MOV R2,08H RE1: CLR C SETB DQ NOP CLR DQ NOP NOP SETB DQ MOV R3,01H DJNZ R3,$ MOV C,DQ MOV R3,010H DJNZ R3,$ RRC A DJNZ R2,RE1 MOV @R1,A DEC R1 DJNZ R4,RE0 RETINI_18B20: SETB DQ NOP CLR DQ MOV R4,150 DJNZ R4,$ 。LCALL TM_DISP 。LCALL TM_DISP SETB DQ TS0: MOV R4,19H JNB DQ,TS1 DJNZ R4,TS0 SJMP TS2 TS1: SETB FLAG SJMP TS3 TS2: CLR FLAG SJMP TS4 TS3: 。LCALL TM_DISP MOV R4,120 DJNZ R4,$ TS4: SETB DQ RETDELAY8ms: MOV R6,2H KL1: MOV R7,80H KL2: DJNZ R7,KL2 DJNZ R6,KL1 RETGET_TM: SETB DQ S1: LCALL INI_18B20 JB FLAG,S2 SJMP S1 S2: MOV R4,10H DJNZ R4,$ MOV A,0CCH LCALL WR_18B20 MOV A,44H LCALL WR_18B20 MOV R4,0ffH S3: LCALL TM_DISP DJNZ R4,S3 S4: LCALL INI_18B20 JB FLAG,S5 SJMP S4 S5: MOV A,0CCH LCALL WR_18B20 MOV A,0BEH LCALL WR_18B20 LCALL RD_18B20 LCALL INI_18B20 MOV R4,10H S6: LCALL TM_DISP DJNZ R4,S6 S7: RETTM_COV: MOV A,0F0H ANL A,TM_L SWAP A MOV TM_NUM,A MOV A,TM_H ANL A,07H SWAP A ORL A,TM_NUM MOV TM_NUM,A MOV R0,DSPBUF JNB 0FH,SING MOV @R0,0BH CPL A CLR ADD A,01H MOV TM_NUM,A SJMP SING1 SING: MOV @R0,0AH SING1: MOV B,10 DIV AB INC R0 MOV @R0,A INC R0 MOV A,B MOV @R0,A INC R0 MOV A,00H JNB 13H,DOT1 ADD A,50 DOT1: JNB 12H,DOT2 ADD A,25 DOT2: JNB 11H,DOT3 ADD A,12 DOT3: JNB 10H,DOT4 ADD A,6 DOT4: MOV B,10 DIV AB MOV @R0,A RETTM_DISP: CLR RS1 CLR RS0 MOV DPTR,TAB MOV R0,DSPBUF MOV B,0FEH MOV R5,04 DIP1: MOV A,@R0 MOV P0,0FFH MOV P1,0FFH MOVC A,@A+DPTR CJNE R5,02,DIP2 ANL A,7FH DIP2: MOV P0,A MOV A,B MOV P1,A RL A MOV B,A LCALL DELAY8ms INC R0 DJNZ R5,DIP1 RET。。。。TM_DISP_1: CLR RS1 CLR RS0 MOV DPTR,TAB MOV R0,DSPBUF MOV B,0FEH MOV R5,04 DDIP4: MOV A,R0 MOV P0,0FFH MOV P1,0FFH CJNE A,60H,DDIP1 MOV A,0FFH SJMP DDIP3 DDIP1: MOV A,@R0 MOVC A,@A+DPTR DDIP3: CJNE R5,02,DDIP2 ANL A,7FH DDIP2: MOV P0,A MOV A,B MOV P1,A RL A MOV B,A LCALL DELAY8ms INC R0 DJNZ R5,DDIP4 RET 。。。 TM_DISP_2: MOV R4,10H KS4: LCALL TM_DISP DJNZ R4,KS4 MOV R4,1FH KS5: LCALL TM_DISP_1 DJNZ R4,KS5 RETTAB:DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H,0FFH,0CFHEND附錄二 硬件電路圖