MOV DPTR,#BJ5
CALL TEMP_BJ3
CLR RELAY ;继电器吸合
RET
CHULI1:
MOV DPTR,#BJ3
CALL TEMP_BJ3
SETB RELAY ;继电器关闭
CALL BEEP_BL
RET
CHULI2:
MOV DPTR,#BJ4
CALL TEMP_BJ3
CALL BEEP_BL
RET
;-----------------------------------------
TEMP_BJ3:
MOV A,#0CEH
CALL WCOM
MOV R1,#0
MOV R0,#2
BBJJ3: MOV A,R1
MOVC A,@A+DPTR
CALL WDATA
INC R1
DJNZ R0,BBJJ3
RET
BJ3:
DB ">H"
BJ4:
DB "<L"
BJ5:
DB " !"
;==================================================
;显示温度标记子程序
;==================================================
TEMP_BJ:
MOV A,#0CBH
CALL WCOM
MOV DPTR,#BJ1 ;指针指到显示消息
MOV R1,#0
MOV R0,#2
BBJJ1: MOV A,R1
MOVC A,@A+DPTR
CALL WDATA
&nb
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