智能多路溫度巡檢儀(doc畢設(shè)論文)-資料下載頁
2025-06-26 05:10本頁面
【正文】 CALL DL10MS JNB ,DOWNH LCALL DL10MS JB ,SETH ?；剀囨I結(jié)束 LCALL DL10MSWTH: JNB ,WTH AJMP K_TEST UPH: LCALL DL10MS JNB ,UPH LCALL DL10MS INC NUMH MOV A,NUMH LCALL DISPSET AJMP SETH DOWNH: LCALL DL10MS JNB ,DOWNH LCALL DL10MS DEC NUMH MOV A,NUMH LCALL DISPSET AJMP SETH 。======================================= SETL: JNB ,UPL 。下限設(shè)置 LCALL DL10MS JNB ,DOWNL LCALL DL10MS JB ,SETL ?；剀囨I結(jié)束 LCALL DL10MSWTL: JNB ,WTL AJMP K_TEST UPL: JNB ,UPL INC NUML MOV A,NUML LCALL DISPSET AJMP SETL DOWNL: JNB ,DOWNL DEC NUML MOV A,NUML LCALL DISPSET AJMP SETL 。=================================。AD轉(zhuǎn)換部分 ADINT: PUSH ACC JNB ,ADINT。等待千位選通DS1有效 THOU: JB ,OVER 。，即超調(diào)量，轉(zhuǎn)OVER JB ,PL1 SETB 07H 。轉(zhuǎn)換值為負(fù)， AJMP PL2 PL1: CLR 07H 。轉(zhuǎn)換值為正，PL2: JNB ,PL3 CLR 04H AJMP PL4 PL3: SETB 04H PL4: JNB ,PL4 MOV A,P1 HUND: MOV R0,20H XCHD A,@R0 PL5: JNB ,PL5 TEN: INC R0 MOV A,P1 SWAP A MOV @R0,A PL6: JNB ,PL6 MOV A,P1 XCHD A,@R0 POP ACC 。LCALL DISP RETIOVER: SETB 10H POP ACC RETI。========================= 。顯示部分 DISP: LCALL CONVERT MOV R6,5 MOV R7,8 MOV R0,DISPNNEXTN: MOV A,@R0 MOV DPTR,TABLE MOVC A,@A+DPTRLOOP1: RLC A MOV ,C CLR SETB DJNZ R7,LOOP1 DEC R0 MOV R7,8 DJNZ R6,NEXTN RET TABLE: DB 0C0H,0CFH,64H,46H, 4BH, 52H,50H,0C7H DB 40H,42H, 0FFH,00H。==============================================。將20H21H中BCD轉(zhuǎn)到31H34H所對應(yīng)的顯示單元 CONVERT: MOV A,21H ANL A,0FH MOV 34H,A MOV A,21H ANL A,0F0H SWAP A MOV 33H,A MOV A,20H ANL A,0FH MOV 32H,A MOV A,20H ANL A,10H SWAP A MOV 31H,A MOV 30H,0 RET 。=========================================================== 。 顯示高位或低位設(shè)置值 DISPSET: MOV B,10 DIV AB MOV 38H,A MOV 39H,B MOV 37H,10 MOV 36H,10 MOV 35H,NUMS MOV R6,5 MOV R7,8 MOV R0,DISPSNEXTM: MOV A,@R0 MOV DPTR,TABLE MOVC A,@A+DPTRLOOP2: RLC A MOV ,C CLR SETB DJNZ R7,LOOP2 DEC R0 MOV R7,8 DJNZ R6,NEXTM RET 。======================================。報警部分 ALARM: MOV A,32H MOV B,10 MUL AB MOV R0,A MOV A,33H ADD A,R0 CJNE A,41H,COMP1 COMP1: JNC ALMRED 。大，綠燈亮 CJNE A,42H,COMP2COMP2: JC ALMGREEN 。小，紅燈亮 SETB SETB RETALMRED: CLR SETB RET ALMGREEN:SETB CLR RET 。=======================================。延時部分DL1MS: MOV R6, 230DL: NOP NOP DJNZ R6, DL DJNZ R5, DL1MS RET。*******************************************************DL10MS: MOV R5, 10 ACALL DL1MS RET DL200MS:MOV R5,255 ACALL DL1MS RET EN
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鄂ICP備17016276號-1