public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Jerry Van Baren <gerald.vanbaren@smiths-aerospace.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] MPC8280 USB console
Date: Mon, 15 Aug 2005 07:31:13 -0400	[thread overview]
Message-ID: <43007D01.6030802@smiths-aerospace.com> (raw)
In-Reply-To: <20050812131216.E521D352633@atlas.denx.de>

Wolfgang Denk wrote:
> In message <OF148161B0.215740C5-ON4825705B.001BEE4A@uk.marconicomms.com> you wrote:
> 
>>      I am trying to bring up the USB controller on PQ2FADS-ZU with MPC8280
>>onboard. I have finished with the initialization and transaction routines
>>but not the ones neccessary for usbtty to work. The u-boot-1.1.2 source

[snip]

>>(3) What type of cable should I use? I assume a Type-A-to-Type-A PC-to-PC
> 
> 
> You better check what your hardware allows. Using a A-to-A cable with
> hartdware that is not compatible may ruin both your target board  and
> the PC.
> 
> Best regards,
> 
> Wolfgang Denk

IIRC, the PQ2FADS board has an errata on using USB in slave mode: the 
circuitry does not disconnect the +5v power properly when in slave mode 
(sneak path through the MOSFET intrinsic diode?) and so the PQ2FADS 
board (as slave) could fight with the host (as master).  CHECK THIS 
BEFORE CONNECTING IT UP.

gvb

  reply	other threads:[~2005-08-15 11:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-12  8:32 [U-Boot-Users] MPC8280 USB console KokHow Teh
2005-08-12 13:12 ` Wolfgang Denk
2005-08-15 11:31   ` Jerry Van Baren [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-08-12  8:40 KokHow Teh
2005-08-13  4:00 KokHow Teh
2005-08-13  7:30 ` Wolfgang Denk

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=43007D01.6030802@smiths-aerospace.com \
    --to=gerald.vanbaren@smiths-aerospace.com \
    --cc=u-boot@lists.denx.de \
    /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