Hello, In my spare time, I'm trying to make a smart card reader, for which I'm using an 8 bits microcontroller.
I've written a state machine within a timer interrupt which strictly implements the iso7816 as I could read of it here: http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816.aspx However, I'm not even getting an ATR out of the card. Although I don't have oscilliscope or logic analizer, I've revised my code and my hardware setup as many times as I can remember. Also, since I begun with hardware testing, use to check the card I'm using for it frequently at a friend's home, where her reader says my card is ok. I'm begining to suspect that I'm either missing something completely obvious for the score, or that nowaday's cards don't make use of the standard above mentioned (at least not how it's explained on the link above). So I was just wondering if anyone could provide some hints or insigths? Also, is there any known open reader with firmware available somewhere? (doesn't matter processor, protocol or whatsoever, just tryng to catch what I'm doing wrong here) I've seen some on the net, but all of them offering support for memory cards (of the sort of Siemens SLE chips), rather than proper iso7816 ones, and so the reset sequence is not the same as described in the above standard. Thanks, Luisa _______________________________________________ Muscle mailing list [email protected] http://lists.drizzle.com/mailman/listinfo/muscle
