Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email email@example.com
From: CSE KITS (kitscseYAHOO.COM)
Date: Wed Oct 17 2001 - 14:41:53 CDT
I am using a GemPC 410 SL reader with a
experimental setup as a smart-card. I have a chip
connected externally which does the communication with
I am having certain problems as the reader responds
by saying that the card is unresponsive.( Status
0x80100066H). My question is this,
What is the Baud rate to be used while sending the ATR
to the reader?
According to the ISO 7816-3 standard, a single bit
duration must be 372 times the duration of a clock
pulse (during RESET).
I have read else where that during ATR, the baud rate
to be used is 9.6kbps. If we combine both of these we
get a Clock pulse of 3.5712 M.Hz, which falls in the
However, while experimenting I have found out that on
the clock pin of the reader I am getting a clock pulse
of approx. width 1.6 micro seconds, which equals a
clock speed of around .625 Mhz. Now, this does not
fall under the permissible range.
I would like to know exactly what the baud rate should
the Card utilise while sending the ATR to the reader.
Also, if any gemplus people could help me, I would
like to know what clock the reader (GemPC410)applies
while powering up the card.
Do You Yahoo!?
Make a great connection at Yahoo! Personals.