Has anyone found any answers to the USB issues talked about
in this old thread? We are possibly having similar issues.

We are using a 5509a (new silicon) USB tranactions are
working just fine then Bam..Bam..Bam three back-to-back missed
responses halting PC communications (3 and out).
The signals seem to look ok.

(Sorry about the Top Post)

Thanks for any insights

PeeJayBlack

===============================================
--- In c..., Marko Panger AGB Lab
wrote:
>
> After a discussion with TI we tried the 5509A, but with no success. The
> code didn't worked.
>
> This was about 5 moths ago.
>
> Jeff Brower wrote:
>
> > Paul-
> >
> >
> >>Seems to me the silicon F is not a big improvement, but if you
> >>checkout the silicon errata for the 5509A you will see the bug list
> >>drop dramatically.
> >
> >
> > Yes, and faster and about same cost also for BGA package.
> >
> > -Jeff
> >
> >
> >
> >>As for the USB problem, I have a problem with the UART. After some
> >>period of time (seems random), the UART no longer generates interrupts
> >>when characters are received!! Sounds like the USB has the same
> >>underlying problem.
> >>
> >>Are you using GIO calls??
> >>
> >>Paul
> >>
> >>--- In c..., Marko Panger AGB Lab
> >>wrote:
> >>
> >>>Wa are using the F revision. All of the versions are buggy, but they
> >>>fixed some things in the latest versions (F). See the sillicon
errata.
> >>
> >>>We are still digging into a problem we discovered with USB.
Randomly we
> >>>are missing transactions. We still don't know if this is a HW or SW
> >>
> >>bug.
> >>
> >>>The behaviour is that from a certain point we don't get any more USB
> >>>interrupts, until we unplug and then re-plug the device.
> >>>
> >>>In think the major bug you should be aware is that CLKOUT is out of
> >>>control when booting from FLASH (not via CCS and JTAG). Also
there are
> >>>several bugs with sleep modes.
> >>>
> >>>marko
> >
> > Start a New Thread