From: Dan Malek <dan@embeddededge.com>
To: bart@ardistech.com
Cc: Alex Zeffertt <ajz@cambridgebroadband.com>,
Embedded Linux PPC List <linuxppc-embedded@lists.linuxppc.org>,
dmalek@jlc.net
Subject: Re: MPC823: i2c-algo-8xx read interrupt?
Date: Mon, 11 Feb 2002 11:02:17 -0500 [thread overview]
Message-ID: <3C67EB09.5010700@embeddededge.com> (raw)
In-Reply-To: 3C67E711.2108C6DD@ardistech.com
bart@ardistech.com wrote:
> You're right, but spending XX$ on a fast PPC chip and after that let it run
> busy loops to time the I2C control makes me feel bad :)
So, you think interrupt and management overhead of the software to send a
couple of bytes on a 100k serial interface is free? The chip designers are
often upset when you don't use every feature, but you need to apply some
real systems engineering methods and analyze how all of these little things
help (or hurt) your application.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-02-11 16:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-08 15:18 MPC823: i2c-algo-8xx read interrupt? bart
2002-02-08 17:04 ` Dan Malek
[not found] ` <3C640C11.4080407@cambridgebroadband.com>
[not found] ` <3C6410F1.4000104@embeddededge.com>
2002-02-11 12:13 ` bart
[not found] ` <3C6776CC.634AB65D@ardistech.com>
2002-02-11 15:30 ` Dan Malek
2002-02-11 15:45 ` bart
2002-02-11 16:02 ` Dan Malek [this message]
2002-02-11 16:19 ` bart
-- strict thread matches above, loose matches on Subject: below --
2002-02-11 15:49 Pergola, Michael
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