From: Josh Horvath <Joshua.Horvath@motorola.com>
To: linuxppc-embedded <linuxppc-embedded@lists.linuxppc.org>
Cc: Christian Schroeder <christian.schroeder@imms.de>
Subject: MPC823E USB controller - delay gates necessary?
Date: Thu, 06 Jun 2002 13:10:55 -0500 [thread overview]
Message-ID: <3CFFA5AF.DD247938@motorola.com> (raw)
The device errata for the MPC850 includes the CPM17 bug that states delay
gates are necessary on the USB pins. The MPC823E errata sheet does not
mention this bug.
I recently read the message by Christian Schroeder about getting the USB
controller working on the TQM823L board (with an 823E processor). He states
that the delay gates are necessary. Is this true?
I've got a custom 823E board that doesn't include these gates and I'm having
trouble getting the controller working, and it's not totally clear to me if
it's a hardware or software problem.
Thanks,
-Josh
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next reply other threads:[~2002-06-06 18:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-06 18:10 Josh Horvath [this message]
2002-06-07 19:45 ` MPC823E USB controller - delay gates necessary? Josh Horvath
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3CFFA5AF.DD247938@motorola.com \
--to=joshua.horvath@motorola.com \
--cc=christian.schroeder@imms.de \
--cc=linuxppc-embedded@lists.linuxppc.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).