From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from majordomo by infradead.org with local (Exim 3.03 #1) id 120Nu0-0006wP-00 for mtd-list@infradead.org; Tue, 21 Dec 1999 11:56:28 +0000 Received: from mb04.swip.net ([193.12.122.208]) by infradead.org with esmtp (Exim 3.03 #1) id 120NtV-0006wJ-00 for mtd@imladris.mvhi.com; Tue, 21 Dec 1999 11:56:26 +0000 Message-ID: <01BF4BB3.38321A20.mdeans@algonet.se> From: Bjorn Eriksson To: "'Kira Brown'" Cc: MTD Subject: RE: Data Reliability Date: Tue, 21 Dec 1999 12:59:25 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: owner-mtd@imladris.demon.co.uk List-ID: >We've already done it. Since we have not a lot running on the system, = a >shutdown -h takes less than a third of a second on a 99MHz AMD Elan = SC410 >driving an 8Mbyte DoC2000. We didn't write any special code other than = a >little thingy (technical term) that watches one of the processor GPIO = pins >for a falling edge and executes a shutdown if it sees one. One of = those >funky 1F memory retention caps provides the power to do this. (Do = those >things scare anyone else or is it just me?) Uhm, do you let your SC410 keep cruising at 99MHz? ISTR that these = "funky=20 memory retention caps" (FMRC:) holds up kinda bad under heavy load. I've = got myself a seriously funky MRC that's either 3F or 700uF depending on = how=20 heavy a load I've got at the point of power failure. P.s Do you know any venues for SC4xx designs/info/refs? Considering how=20 many people are designing with this beast there preciously little noise = on=20 the Web. Right now I'm fighting GPCSA who stubbornly asserts his right = to=20 drive *ALL* the GPIO_CS's :-) D.s //Bj=F6rn Eriksson To unsubscribe, send "unsubscribe mtd" to majordomo@infradead.org