Fast SIM cards loosing bytes

[Min Xu]

Hi Holger

To give you an update.  As far as I can tell, the changes I have submitted,
with the addition of a change (on my local system) where the USB protocol
has been modified to remove USB overrun, is stable so I can monitor iPhone
5S as well as Galaxy S4 continuously.  If anyone asks, I would be happy to
send them the USB protocol changes.  However, it will be INCOMPATIBLE with
earlier firmware based SIMTrace boards.

I am making changes to the host program (on Windows) to monitor multiple
SIMTrace devices, and am interested to know if anyone else is working on
something similar.

Best Regards


Date: Wed, 22 Jan 2014 21:27:31 +0100
> From: Holger Hans Peter Freyther <holger at freyther.de>
> To: Dean Chester <dean.g.chester at gmail.com>
> Cc: "simtrace at lists.osmocom.org" <simtrace at lists.osmocom.org>
> Subject: Re: Fast SIM cards loosing bytes
> Message-ID: <20140122202731.GL15138 at xiaoyu.lan>
> Content-Type: text/plain; charset=us-ascii
>
> On Mon, Jan 13, 2014 at 08:35:05AM +0000, Dean Chester wrote:
> > Hi,
> >
> > I see earlier in the archives that reducing the buffer size in the
> firmware will resolve this. Hasn't this already been done though in new
> releases of the firmware? As I have pulled the latest version from the
> openpcd git repo and built it. If not what have people reduced the buffer
> size to? And has it had any fixes?
>
> The closest are the patches that Min Xu sent. They require some
> clean-ups and review (specially the code changing the interrupt
> handling).
>
> holger
>
>
>
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