From: Cliff Brake <cliff.brake-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: PXA270 SPI + SD card
Date: Wed, 4 Nov 2009 16:54:18 -0500 [thread overview]
Message-ID: <f96d234e0911041354p1f11e415g427ec9b74ff4d25b@mail.gmail.com> (raw)
In-Reply-To: <f96d234e0911041353o25aeee4aqbb482f162aaeac5f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Wed, Nov 4, 2009 at 4:53 PM, Cliff Brake <cliff.brake-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hello,
>
> I'm trying to get a PXA270 to talk to a SD card via SPI. Has anyone
> else done this?
>
> One of the requirements is the CS stay low for the entire transaction.
> Can this be done with the PXA270 controlling the frame (CS) signal,
> or is GPIO control typically required?
Also, what SPI mode is typically used for SD? Looks like 0 and 3 are
the closest (http://elm-chan.org/docs/spi_e.html).
Thanks,
Cliff
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next prev parent reply other threads:[~2009-11-04 21:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-04 21:53 PXA270 SPI + SD card Cliff Brake
[not found] ` <f96d234e0911041353o25aeee4aqbb482f162aaeac5f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-11-04 21:54 ` Cliff Brake [this message]
[not found] ` <f96d234e0911041354p1f11e415g427ec9b74ff4d25b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-11-04 23:27 ` Ned Forrester
2009-11-05 6:17 ` Baruch Siach
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