On 09:30 Sun 10 Jul , Xiaofan Chen wrote:
> On Sun, Jul 10, 2011 at 9:11 AM, <li...@neuronenwerk.de> wrote:
> > Hi list,
> >
> > I've been trying for some days to get the Segger JLink EDU
> > version going with OpenOCD on Windows 7 32 bit. As the JLink,
> > OpenOCD and LibUSB might have be the reason for the failure,
> > I tried various combinations.
> >
> > It does work now, but chances are that other people face the
> > same issue, hence the post.
> >
> > The results as of now are that current Segger firmware prevents
> > the adapter from working with OpenOCD. As soon as OpenOCD starts
> > up, the LED is flashing green, then shortly red before the
> > device vanishes completely. The relevant error is "usb_bulk_read
> > failed". It comes up again after a minute or so.
> >
> > - I tried OpenOCD versions v0.2.0, v0.3.0, v0.4.0 and a beta
> > build of 0.5.0.
> >
> > - I had LibUSB running in versions 1.2.2.0, 1.2.4.0 and the
> > latest development snapshot, both with .inf and filter
> > driver.
> >
> > - JLink software (including firmware) was 4.31 and 4.20
> > first, finally 4.10i.
> >
> > After flashing 4.10i ('exec invalidateFw' in Segger Commander),
> > flashing my hardware (Cortwith 0.5.0. I don't consider this a a
> > serious issue, since its still beta (see the log at
> > http://www.target23.de/tmp/log_0.5.0.txt)
> >
> > The version of LibUSB is also irrelevant, it worked with all
> > three; the filter driver was sufficient.
> >
> > Sorry for not providing more logs etc. to get behind the
> > reason for the failure, but I don't feel a strong desire
> > to go through all that again.
>
> Unfortunately this is a known issue.
> https://lists.berlios.de/pipermail/openocd-development/2011-July/020046.html
>
> Basically 4.10i and below works, 4.20 and above does not work.
>
> Hopefully this will be fixed with some reverse-engineering
> or contacting Segger. It seems Segger knows the problem
> and may want to work with OpenOCD developers to fix the problem.
>
> http://www.segger2.com/index.php?page=Thread&threadID=869
I try to get in Contact with them already hope they will reply soon
Best Regards,
J.
_______________________________________________
Openocd-development mailing list
Openocd-development@lists.berlios.de
https://lists.berlios.de/mailman/listinfo/openocd-development
