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RE: contributing filesystem and a failsafe update meachanism for FIS from within ecos applications
- From: "Daly, Jeffrey" <jeffrey dot daly at intel dot com>
- To: <ml dot ecos at ringle dot org>, <ecos-devel at ecos dot sourceware dot org>
- Date: Fri, 23 Sep 2005 09:11:42 -0400
- Subject: RE: contributing filesystem and a failsafe update meachanism for FIS from within ecos applications
Yep.
>-----Original Message-----
>From: ecos-devel-owner@ecos.sourceware.org [mailto:ecos-devel-
>owner@ecos.sourceware.org] On Behalf Of Jon Ringle
>Sent: Friday, September 23, 2005 9:01 AM
>To: ecos-devel@ecos.sourceware.org
>Subject: Re: contributing filesystem and a failsafe update meachanism
for
>FIS from within ecos applications
>
>On Friday 23 September 2005 08:09 am, Neundorf, Alexander wrote:
>> 5. after the image is written, set the valid_flag of the fis
directory
>> which will become active to 0xa5a5. In order to do this, the flash
block
>> doesn't have to be erased, since the transition from 0xfdfd to 0xa5a5
>only
>> sets some bits to 0.
>
>I didn't know this property of flash. Is this a universal property of
NOR
>flash?
>
>Jon