Problems reading from i²c card with smardcard framework 2010

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C#

Hi,

I'm currently developing a small software for reading and writing 256-Byte I²C-Cards.
I'm using the Smardcard Framework 2010 from here:
Smardcard Framework 2010

Now to the problem with reading from the card.

What I have tried:

That is currently my code, extracted from the sample of the framework:

Initialization:

_cardReaders = new CardNative();
_apduPlayer = new APDUPlayer(APDU_LIST_FILE, _cardReaders);

Code if Cardreader is connected:

_reader = new Reader(readerList.Single(m => Equals(m, CARDREADER_NAME_OMNIKEY)));

_reader.CardInserted += OnCardInserted;
_reader.CardRemoved += OnCardRemoved;

_reader.StartCardEvents();

Code for Reading the Card:

_cardReaders.Connect(CARDREADER_NAME_OMNIKEY, SHARE.Shared, PROTOCOL.T0orT1);

APDUParam apduParam = new APDUParam();
apduParam.P1 = byte.Parse("00", NumberStyles.AllowHexSpecifier);
apduParam.P2 = byte.Parse("00", NumberStyles.AllowHexSpecifier);
apduParam.Le = byte.Parse("0", NumberStyles.AllowHexSpecifier);

APDUResponse apduResponse = _apduPlayer.ProcessCommand("A0", "B0", apduParam);

If I execute this code, I'm getting one of the exceptions by random, thrown in CardBase:

SmardCardException: SCardTransmit error: 06
SmardCardException: SCardListReaders error: FFFFFFFF80100004

sometimes it passes the method and returns a hex code as the "data"-value of the APDUResponse. I can't figure out why it sometimes passes and sometimes not.

I haven't found any documentation about the error codes.


What I am doing wrong? Is there a better smardcard framework available?

Thanks for any help!