求助：T5557卡刷卡失败之后卡被锁死

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楼主 | 2013-6-3 11:29 | 只看该作者回帖奖励

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T5557, Card, RF, ic, CARDS

T5557卡刷卡失败两次后被锁死，不能再次读卡或者写卡，请大家帮忙找下原因
==================================T5557 AOR模式唤醒处理块开始==================================
CardServiceAorOperation: ;以下代码为AOR模式唤醒操作
//MOV.B #CardPassword_inInfoB,&aoraddressInfo
      BIS.B #CardSdaTxDir
BIC.B #CardSdaTxOut
      CALL #RF_card_initial

//LOOPNOP:
  //    NOP
// JMP    LOOPNOP

MOV.B #03h,RFCounter
//BIC.B #T5557DataErrBit
CardServiceAorOperationRepeat:
MOV #0AEFDh,com_data_A
MOV #0EB19h,com_data_B
CALL #T5557AorMode
      MOV #0200h,R11
LOOP_wait:
DEC R11
JNZ LOOP_wait

      CALL #RF_read


      CALL #CardDataXorVerify

      CMP.B #00AAh,R5TEMP
      JZ    Read_Err
      RET

Read_Err:

DEC.B &RFCounter
JNZ CardServiceAorOperationRepeat
      BIS.B #RfRWErrBit_,RFStateFlag
      RET

//DEC.B RFCounter
//JNZ CardServiceAorOperationRepeat

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