From: Andrew Lunn <andrew@lunn.ch>
To: Frank Wu <qiongwu23@gmail.com>
Cc: ecos-discuss <ecos-discuss@ecos.sourceware.org>
Subject: Re: [ECOS] at91sam7 spi test code
Date: Tue, 30 Jan 2007 20:51:00 -0000 [thread overview]
Message-ID: <20070130205126.GE22661@lunn.ch> (raw)
In-Reply-To: <591a86200701301236l4e646c1cma2db1aa361bebea@mail.gmail.com>
On Tue, Jan 30, 2007 at 12:36:40PM -0800, Frank Wu wrote:
> Dear All,
>
> I want to use SPI bus on a sam7 uC. Where can I find SPI test code to
> make sure the SPI driver works?
This is not easy. You need a device on the bus and a driver for the
device. It is not really possible to test the SPI bus driver without
testing the SPI device device driver at the same time.
So i suggest you just write your device device driver and maybe
connect a logic analyser/3-channel digital oscilloscope to the SPI bus.
Andrew
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next prev parent reply other threads:[~2007-01-30 20:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-30 20:36 Frank Wu
2007-01-30 20:51 ` Andrew Lunn [this message]
2007-01-31 0:55 ` Frank Wu
2007-01-31 1:13 ` jiang jet
2007-01-31 7:17 ` Andrew Lunn
2007-01-30 22:55 ` [ECOS] Fwd: " Nikita Tabatsky
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