From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] i.MX31: question about CFG_HZ and CKIL
Date: Sat, 10 May 2008 00:13:28 +0200 [thread overview]
Message-ID: <20080509221328.CAEB4247F5@gemini.denx.de> (raw)
In-Reply-To: Your message of "Wed, 07 May 2008 10:59:31 +0200." <48216F73.4010809@tqs.de>
In message <48216F73.4010809@tqs.de> you wrote:
>
> If CKIL is the above mentioned 32 kHz clock, the resulting deviation in
> the timers is "only" about 2.4% as long as CFG_HZ in mx31ads.h is 32000
> Hz. Although it works with the current definition, I'd like to know your
> opinions, whether it is necessary to adjust this value.
Note that CFG_HZ is not really configurable, even if the name suggests
so. In reality, CFG_HZ is a constant with the value 1000.
There are some broken boards which don't handle this correctly, but
at least that's what you should set.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The goal of science is to build better mousetraps. The goal of nature
is to build better mice.
next prev parent reply other threads:[~2008-05-09 22:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-07 8:59 [U-Boot-Users] i.MX31: question about CFG_HZ and CKIL Jens Gehrlein
2008-05-08 7:53 ` Guennadi Liakhovetski
2008-05-09 22:13 ` Wolfgang Denk [this message]
2008-05-14 6:36 ` Jens Gehrlein
2008-05-14 10:30 ` Wolfgang Denk
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