contributing filesystem and a failsafe update meachanism for FIS from within ecos applications

[Jon Ringle]

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