Hello Marc en the others,
I thought that I would have to write my own function to get the ATR string
in a correct format, but I thought that this problem would be catched in the
package of ibm also. You see I downloaded the card drivers which support
the card MPCOS-EMV, but every time I try to create an card object for my
MPCOS-EMV card he gives back that the type is unsupported. I thought that
the problem is the ATR format, but on the other side I can't believe that
the people who made this package didn't notice that problem. In fact it's
not my code, but the package code who has problems.
Maybe my problem must be something else. Do you now if it's possible that
there are older versions of the MPCOS-EMV wich are not supported by OCF ?
Kind regards,
Wim Demeulenaere
-----Original Message-----
From: Marc Palmer [mailto:[EMAIL PROTECTED]]
Sent: donderdag 26 juli 2001 16:15
To: [EMAIL PROTECTED]
Subject: Re: [OCF] Problems with format ATR string
------ Original Message ------
On 26/07/01, 12:53:50, Wim Demeulenaere <[EMAIL PROTECTED]> wrote
regarding [OCF] Problems with format ATR string:
> Hello everybody,
> I Try to run a demo application I found in the OCF manual but I have some
> trouble.
> I'm using the package "com.ibm.opencard.terminal.pcsc10" and for the ATR
> string they use a byte[]. When the higher nibble of a byte of my ATR
string
> is higher then 7, I get garbage. I think because of the fact that the
last
> bit is used for the sign ?
> For example : ATR = 3b 2a 00 80 .....
> Becomes : 0x3b 0x2a 0x00 0xffffff80 ...
> Can somebody help me ?
ATRs are not strings. They are byte[]. i.e. Byte[] { 0x00, 0x00, 0x00,
0x00... } is potentially a valid ATR but is not a human-readable string.
A a result there is no standard text encoding for ATRs.
You should just write your own function that writes out chars 32-127 and
puts "?" if it is outside this range.
Nothing else really makes sense. You should deal with the byte[] values
anyway.
Cheers
---
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