1.asm

一种测试导线短路,开路的方法,本程序已经通过调试并用于实际当中

	ORG  0000H
	LJMP MAIN
	ORG  0030H 
MAIN:
	MOV A,#0FFH
	MOV P0,A
	MOV P1,A
	MOV P2,A
	MOV P3,#80H
	JNB P3.7,PAIDUAN
        LJMP MAIN
PAIDUAN:
	LCALL DELAY
	JNB P3.7,CHECKER
	NOP
	LJMP MAIN
CHECKER:
	LCALL U1
	LCALL U2
	LCALL U3
	LCALL U4
	LCALL U5
	LCALL U6
	LCALL U7
	LCALL U8
	LCALL U1_8
	LJMP CHECKER
U1:
	MOV P2,#01H
	LCALL DELAY
	MOV P0,#0FEH
	MOV P3,#81H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q1
	MOV P0,#0FDH
	MOV P3,#82H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q2
	MOV P0,#0FBH
	MOV P3,#83H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q3
	MOV P0,#0F7H
	MOV P3,#84H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q4
	MOV P0,#0EFH
	MOV P3,#85H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q5
	MOV P0,#0DFH
	MOV P3,#86H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q6
	MOV P0,#0BFH
	MOV P3,#87H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q7
	MOV P0,#7FH
	MOV P3,#88H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q8
	RET
Q1:
	SETB P3.0
	SETB P2.7
	CLR P0.7
	SJMP $
Q2:
	MOV P3,#82H
	SETB P2.7
	CLR P0.7
	SJMP $
Q3:
	MOV P3,#83H
	SETB P2.7
	CLR P0.7
	SJMP $
Q4:
	MOV P3,#84H
	SETB P2.7
	CLR P0.7
	SJMP $
Q5:
	MOV P3,#85H
	SETB P2.7
	CLR P0.7
	SJMP $
Q6:
	MOV P3,#86H
	SETB P2.7
	CLR P0.7
	SJMP $
Q7:
	MOV P3,#87H
	SETB P2.7
	CLR P0.7
	SJMP $
Q8:
	MOV P3,#88H
	SETB P2.7
	CLR P0.7
	SJMP $
U2:
	MOV P2,#01H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#02H
	MOV P0,#0FEH
	MOV P3,#89H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q9
	MOV P0,#0FDH
	MOV P3,#90H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q10
	MOV P0,#0FBH
	MOV P3,#91H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q11
	MOV P0,#0F7H
	MOV P3,#92H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q12
	MOV P0,#0EFH
	MOV P3,#93H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q13
	MOV P0,#0DFH
	MOV P3,#94H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q14
	MOV P0,#0BFH
	MOV P3,#95H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q15
	MOV P0,#7FH
	MOV P3,#96H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q16
	RET
Q9:
	MOV P3,#89H
	SETB P2.7
	CLR P0.7
	SJMP $
Q10:
	MOV P3,#90H
	SETB P2.7
	CLR P0.7
	SJMP $
Q11:
	MOV P3,#91H
	SETB P2.7
	CLR P0.7
	SJMP $
Q12:
	MOV P3,#92H
	SETB P2.7
	CLR P0.7
	SJMP $
Q13:
	MOV P3,#93H
	SETB P2.7
	CLR P0.7
	SJMP $
Q14:
	MOV P3,#94H
	SETB P2.7
	CLR P0.7
	SJMP $
Q15:
	MOV P3,#95H
	SETB P2.7
	CLR P0.7
	SJMP $
Q16:
	MOV P3,#96H
	SETB P2.7
	CLR P0.7
	SJMP $
U3:
	MOV P2,#02H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#04H
	MOV P0,#0FEH
	MOV P3,#97H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q17
	MOV P0,#0FDH
	MOV P3,#98H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q18
	MOV P0,#0FBH
	MOV P3,#99H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q19
	MOV P0,#0F7H
	MOV P3,#0A0H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q20
	MOV P0,#0EFH
	MOV P3,#0A1H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q21
	MOV P0,#0DFH
	MOV P3,#0A2H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q22
	MOV P0,#0BFH
	MOV P3,#0A3H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q23
	MOV P0,#7FH
	MOV P3,#0A4H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q24
	RET
Q17:
	MOV P3,#97H
	SETB P2.7
	CLR P0.7
	SJMP $
Q18:
	MOV P3,#98H
	SETB P2.7
	CLR P0.7
	SJMP $
Q19:
	MOV P3,#99H
	SETB P2.7
	CLR P0.7
	SJMP $
Q20:
	MOV P3,#0A0H
	SETB P2.7
	CLR P0.7
	SJMP $
Q21:
	MOV P3,#0A1H
	SETB P2.7
	CLR P0.7
	SJMP $
Q22:
	MOV P3,#0A2H
	SETB P2.7
	CLR P0.7
	SJMP $
Q23:
	MOV P3,#0A3H
	SETB P2.7
	CLR P0.7
	SJMP $
Q24:
	MOV P3,#0A4H
	SETB P2.7
	CLR P0.7
	SJMP $
U4:
	MOV P2,#04H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#08H
	MOV P0,#0FEH
	MOV P3,#0A5H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q25
	MOV P0,#0FDH
	MOV P3,#0A6H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q26
	MOV P0,#0FBH
	MOV P3,#0A7H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q27
	MOV P0,#0F7H
	MOV P3,#0A8H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q28
	MOV P0,#0EFH
	MOV P3,#0A9H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q29
	MOV P0,#0DFH
	MOV P3,#0B0H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q30
	MOV P0,#0BFH
	MOV P3,#0B1H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q31
	MOV P0,#7FH
	MOV P3,#0B2H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q32
	RET
Q25:
	MOV P3,#0A5H
	SETB P2.7
	CLR P0.7
	SJMP $
Q26:
	MOV P3,#0A6H
	SETB P2.7
	CLR P0.7
	SJMP $
Q27:
	MOV P3,#0A7H
	SETB P2.7
	CLR P0.7
	SJMP $
Q28:
	MOV P3,#0A8H
	SETB P2.7
	CLR P0.7
	SJMP $
Q29:
	MOV P3,#0A9H
	SETB P2.7
	CLR P0.7
	SJMP $
Q30:
	MOV P3,#0B0H
	SETB P2.7
	CLR P0.7
	SJMP $
Q31:
	MOV P3,#0B1H
	SETB P2.7
	CLR P0.7
	SJMP $
Q32:
	MOV P3,#0B2H
	SETB P2.7
	CLR P0.7
	SJMP $
U5:
	MOV P2,#08H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#10H
	MOV P0,#0FEH
	MOV P3,#0B3H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q33
	MOV P0,#0FDH
	MOV P3,#0B4H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q34
	MOV P0,#0FBH
	MOV P3,#0B5H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q35
	MOV P0,#0F7H
	MOV P3,#0B6H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q36
	MOV P0,#0EFH
	MOV P3,#0B7H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q37
	MOV P0,#0DFH
	MOV P3,#0B8H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q38
	MOV P0,#0BFH
	MOV P3,#0B9H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q39
	MOV P0,#7FH
	MOV P3,#0C0H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q40
	RET
Q33:
	MOV P3,#0B3H
	SETB P2.7
	CLR P0.7
	SJMP $
Q34:
	MOV P3,#0B4H
	SETB P2.7
	CLR P0.7
	SJMP $
Q35:
	MOV P3,#0B5H
	SETB P2.7
	CLR P0.7
	SJMP $
Q36:
	MOV P3,#0B6H
	SETB P2.7
	CLR P0.7
	SJMP $
Q37:
	MOV P3,#0B7H
	SETB P2.7
	CLR P0.7
	SJMP $
Q38:
	MOV P3,#0B8H
	SETB P2.7
	CLR P0.7
	SJMP $
Q39:
	MOV P3,#0B9H
	SETB P2.7
	CLR P0.7
	SJMP $
Q40:
	MOV P3,#0C0H
	SETB P2.7
	CLR P0.7
	SJMP $
U6:
	MOV P2,#10H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#20H
	MOV P0,#0FEH
	MOV P3,#0C1H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q41
	MOV P0,#0FDH
	MOV P3,#0C2H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q42
	MOV P0,#0FBH
	MOV P3,#0C3H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q43
	MOV P0,#0F7H
	MOV P3,#0C4H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q44
	MOV P0,#0EFH
	MOV P3,#0C5H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q45
	MOV P0,#0DFH
	MOV P3,#0C6H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q46
	MOV P0,#0BFH
	MOV P3,#0C7H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q47
	MOV P0,#7FH
	MOV P3,#0C8H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q48
	RET
Q41:
	MOV P3,#0C1H
	SETB P2.7
	CLR P0.7
	SJMP $
Q42:
	MOV P3,#0C2H
	SETB P2.7
	CLR P0.7
	SJMP $
Q43:
	MOV P3,#0C3H
	SETB P2.7
	CLR P0.7
	SJMP $
Q44:
	MOV P3,#0C4H
	SETB P2.7
	CLR P0.7
	SJMP $
Q45:
	MOV P3,#0C5H
	SETB P2.7
	CLR P0.7
	SJMP $
Q46:
	MOV P3,#0C6H
	SETB P2.7
	CLR P0.7
	SJMP $
Q47:
	MOV P3,#0C7H
	SETB P2.7
	CLR P0.7
	SJMP $
Q48:
	MOV P3,#0C8H
	SETB P2.7
	CLR P0.7
	SJMP $
U7:
	MOV P2,#20H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#40H
	MOV P0,#0FEH
	MOV P3,#0C9H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q49
	MOV P0,#0FDH
	MOV P3,#0D0H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q50
	MOV P0,#0FBH
	MOV P3,#0D1H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q51
	MOV P0,#0F7H
	MOV P3,#0D2H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q52
	MOV P0,#0EFH
	MOV P3,#0D3H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q53
	MOV P0,#0DFH
	MOV P3,#0D4H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q54
	MOV P0,#0BFH
	MOV P3,#0D5H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q55
	MOV P0,#7FH
	MOV P3,#0D6H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#7FH,Q56
	RET
Q49:
	MOV P3,#0C9H
	SETB P2.7
	CLR P0.7
	SJMP $
Q50:
	MOV P3,#0D0H
	SETB P2.7
	CLR P0.7
	SJMP $
Q51:
	MOV P3,#0D1H
	SETB P2.7
	CLR P0.7
	SJMP $
Q52:
	MOV P3,#0D2H
	SETB P2.7
	CLR P0.7
	SJMP $
Q53:
	MOV P3,#0D3H
	SETB P2.7
	CLR P0.7
	SJMP $
Q54:
	MOV P3,#0D4H
	SETB P2.7
	CLR P0.7
	SJMP $
Q55:
	MOV P3,#0D5H
	SETB P2.7
	CLR P0.7
	SJMP $
Q56:
	MOV P3,#0D6H
	SETB P2.7
	CLR P0.7
	SJMP $
U8:
	MOV P2,#40H
	MOV P0,#0FFH
	LCALL DELAY
	MOV P2,#80H
	MOV P0,#0FEH
	MOV P3,#0D7H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FEH,Q57
	MOV P0,#0FDH
	MOV P3,#0D8H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FDH,Q58
	MOV P0,#0FBH
	MOV P3,#0D9H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0FBH,Q59
	MOV P0,#0F7H
	MOV P3,#0E0H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0F7H,Q60
	MOV P0,#0EFH
	MOV P3,#0E1H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0EFH,Q61
	MOV P0,#0DFH
	MOV P3,#0E2H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0DFH,Q62
	MOV P0,#0BFH
	MOV P3,#0E3H
	LCALL DELAY1
	MOV A,P1
	CJNE A,#0BFH,Q63
	RET
Q57:
	MOV P3,#0D7H
	SETB P2.7
	CLR P0.7
	SJMP $
Q58:
	MOV P3,#0D8H
	SETB P2.7
	CLR P0.7
	SJMP $
Q59:
	MOV P3,#0D9H
	SETB P2.7
	CLR P0.7
	SJMP $
Q60:
	MOV P3,#0E0H
	SETB P2.7
	CLR P0.7
	SJMP $
Q61:
	MOV P3,#0E1H
	SETB P2.7
	CLR P0.7
	SJMP $
Q62:
	MOV P3,#0E2H
	SETB P2.7
	CLR P0.7
	SJMP $
Q63:
	MOV P3,#0E3H
	SETB P2.7
	CLR P0.7
	SJMP $

U1_8:
	MOV A,#0FFH