Connect with us

SLE4442 low level protocol

Discussion in 'Electronic Basics' started by [email protected], Sep 7, 2005.

Scroll to continue with content
  1. Guest

    Hi,

    I need to get an ID from the SLE4442 smartcard. If needed self-written.
    Besides the fixed ID's in the card it is possible to write to the card
    according to the specification.

    I saw something funny just now. When I keep repeating the clock after 4
    bytes the following appears: 80,13,10,80,80,80,80,80,80,... But at the
    oscilloscope I don't see this repeating byte.

    I got a hint from somebody yesterday about checking the DATA-line
    during clock-cycles. According to the SLE4442-specification the
    inserted card will pull-up the line if it thinks the data if no longer
    valid or it stopped sending it.

    Is anybody familliar with this concept?

    Weerius
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-