> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
Behalf Of Harold
> Hallikainen
> Sent: 27 July 2010 16:28
> To: Pic List
> Subject: Bus Error with no USB host plugged in
>=20
> I'm running Generic USB client on USB stack 2.6a on a PIC32. It has
worked
> very well. But on some boards, it appears I'm getting a lot of bus
errors
> with no host plugged in. This seems to result in my code spending a
bunch
> of time servicing this interrupt instead of doing real work. I
eventually
> get a watchdog timeout. I'm not sure this is the problem, but I've
caught
> the system in this USB bus error several times just before the WDT
times
> out. It seems that the lack of Vbus should indicate that no host is
> present and any noise on the bus would be ignored. Is there perhaps
> something I missed in configuring the stack?
>=20
> THANKS!
>=20
> Harold

I would look at the current stack, v2.7 I believe, to see if there is
anything fixed in there. This sounds like the sort of error that must
get noticed somewhere before this, and get into the stack revision.
--=20
Scanned by iCritical.

--=20
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