From: David Brownell <david-b@pacbell•net>
To: Arnav Das <arnavdas29@gmail•com>
Cc: linuxppc-dev@ozlabs•org, Stefan Roese <sr@denx•de>,
spi-devel-general@lists•sourceforge.net
Subject: Re: general SPI question (WAS: [PATCH v6] spi: Add PPC4xx SPI driver)
Date: Thu, 23 Apr 2009 23:20:30 -0700 [thread overview]
Message-ID: <200904232320.30609.david-b@pacbell.net> (raw)
In-Reply-To: <8ee9e87c0904232032sc7ef5e7ibf058618fca8c1a0@mail.gmail.com>
On Thursday 23 April 2009, Arnav Das wrote:
> i am a newbie
Lesson #1: make sure your Subject: lines match the message
topic (I did a partial repair) and don't post to the wrong
list (e.g. PPC lists for OMAP questions).
> and am doing a project on beagle board(running
> omap3530). i am interfacing an adc(ads7886) to the beagleboard via
> spi. need to know how the spi works
Read the ads7886 data sheet, in this case. It uses
a subset of SPI ... no input commands, just a 12-bit
sample returned each time chipselect pulses.
> and how a module can access the
> spi registers of the omap. if someones already made an adc driver can
> they mail me?
Use drivers/spi/omap2_mcspi.c on OMAP3 boards, at
least to start with. If you want streaming conversions
you may want to use different modes than are currently
supported by that driver.
- Dave
prev parent reply other threads:[~2009-04-24 6:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-08 10:40 [PATCH v6] spi: Add PPC4xx SPI driver Stefan Roese
2009-04-22 5:36 ` David Brownell
2009-04-22 8:29 ` Stefan Roese
2009-04-22 8:56 ` David Brownell
2009-04-22 20:00 ` David Brownell
2009-04-24 3:32 ` [spi-devel-general] " Arnav Das
2009-04-24 6:20 ` David Brownell [this message]
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=200904232320.30609.david-b@pacbell.net \
--to=david-b@pacbell$(echo .)net \
--cc=arnavdas29@gmail$(echo .)com \
--cc=linuxppc-dev@ozlabs$(echo .)org \
--cc=spi-devel-general@lists$(echo .)sourceforge.net \
--cc=sr@denx$(echo .)de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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