Date: Wed, 6 Jun 2007 10:09:39 +0200 (CEST) From: =?iso-8859-1?Q?Bj=F6rn_K=F6nig?= <bkoenig@cs.tu-berlin.de> To: "Krassimir Slavchev" <krassi@bulinfo.net> Cc: arm@freebsd.org, ticso@cicely.de Subject: Re: timeout while detecting SD card Message-ID: <49266.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181117379.squirrel@webmail.alpha-tierchen.de> In-Reply-To: <4666581D.9050009@bulinfo.net> References: <53067.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181056352.squirrel@webmail.alpha-tierchen.de> <20070605154250.GN16463@cicely12.cicely.de> <20070605.100615.-1384053623.imp@bsdimp.com> <20070605165908.GP16463@cicely12.cicely.de> <4666581D.9050009@bulinfo.net>
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Krassimir Slavchev skrev: > I use MCK 80MHz and cpu clock 240MHz without any problems. I would assume that certain devices won't work properly. I doesn't have much experience with the at91rm9200, but with at91sam7s256. The controller's maximum MCK(=PCK) is 55 MHz according to the specification, but actually it worked almost fine with 96 MHz. At least USB didn't work properly anymore, but most peripherals. Obviously there are many reserves beyond the specification and I think it behaves potentially similar with the at91rm9200. Björn
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