基于單片機(jī)的多路溫度采集與控制說明書-資料下載頁(yè)
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【正文】 LCALL SET_ALARM PK3: JB K21, PK4 JNB K21, $ MOV A, L_TEMP LCALL LOOK_ALARM LCALL SET_ALARM PK4: LCALL DELAY RET SET_ALARM: A0: JB K10, A2 。TH值增加 INC H_TEMP MOV A, H_TEMP CJNE A,64,A1 MOV H_TEMP, 50 A1: LCALL LOOK_ALARM MOV R5, 10 LCALL DE JMP A0 A2: JB K20, A4 。TL值增加 INC H_TEMP MOV A, H_TEMP CJNE A,64,A3 MOV H_TEMP, 10 A3: LCALL LOOK_ALARM MOV R5, 10 LCALL DE JMP A2 A4: JB K11, A6 。TH值減少 INC H_TEMP MOV A, H_TEMP CJNE A,00,A5 MOV H_TEMP, 50 A5: LCALL LOOK_ALARM MOV R5, 10 LCALL DE JMP A4 A6: JB K20, A8 。TL值減少 INC H_TEMP MOV A, H_TEMP CJNE A,00,A7 MOV H_TEMP, 10 A7: LCALL LOOK_ALARM MOV R5, 10 LCALL DE JMP A6 A8: LCALL DELAY RETLOOK_ALARM: 。數(shù)據(jù)顯示 MOV R3, 100 。循環(huán)延時(shí) RE: MOV B,10 DIV AB MOV LED_1,A MOV LED_0,B MOV A,LED_0 。數(shù)碼顯示子程序 MOVC A,@A+DPTR CLR MOV P0,A LCALL DELAY SETB MOV A,LED_1 MOVC A,@A+DPTR CLR MOV P0,A LCALL DELAY SETB DJNZ R3, RE RETDE: 。延時(shí)R5*10ms DL1: MOV R6, 100 MOV R7,100 DJNZ R7, $ DJNZ R6, DL1 DJNZ R5, DE RET 。*************************************************************** DELAY: MOV R6,10D1: MOV R7,250 DJNZ R7,$ DJNZ R6,D1 RETDELAY2: MOV R5,20D2: MOV R6,20D3: MOV R7,250 DJNZ R7,$ DJNZ R6,D3 DJNZ R5,D2 RETTABLE: DB 3FH,06H,5BH,4FH,66H DB 6DH,7DH,07H,7FH,6FH END22
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