Mahlzeit
Michael Renzmann wrote:
> By sending 255 bytes of information at once (255 bytes of real
> information, protocol data not included!), he has to send more than this
> 255 bytes to the reader because of the protocol overhead. Try to tell
> this to the reader by using one byte for "length of data to send" :-)
This is no problem.
1) You don't have to send the whole data with one Towitoko command
to the card. You can send the first halve of an I-Block with
one command and the second halve with a second command.
2) The maximum data size a Towitoko reader can send with one command
is AFAIK 15 (or 16) Bytes.
E.g.:
|He|ad|er|Da|ta|by|te|s.|..|..|..|..|..|..|..|..|..|..|..|RC|
|<--------------------------------->|<--------------------->|
Sent with first towitoko command. Sent with second.
Mahlzeit
endergone Zwiebeltuete
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Linux Smart Card Developers - M.U.S.C.L.E.
(Movement for the Use of Smart Cards in a Linux Environment)
http://www.linuxnet.com/smartcard/index.html
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