Re: BootLDR, FLASH and progress?

Am Sa, den 29.05.2004 schrieb Holger Freyther um 20:33:
> Hi all,
Hi!

> is it still true that the CRL bootldr only initializes the first bank right? 
> Is there any progress beeing made? Or at least the source of evil known? I've 
> a new desktop system with plenty of diskspace (40gb) and currently trying to 
> build stuff with OpenEmbedded (oe) and then would start with kernel2.6 
> development again.
> It would be really nice to be able to boot off the CF and or NFS so I don't 
> wear off my flash and don't waste my time. So it would be really nice if 
> someone could look into the bootldr.

I cannot answer your questions, sorry, but I can relieve you from your
doubts about wearing out your flash. If it is kernel development you are
concerned of then you will be very unlikely to wear out any flash sector
soon.
You have about 100.000 guaranteed erase/write cycles on NOR flash. Given
your flashing process only takes one minute, which is a very positive
asumption, then you could repeatedly reflash your SIMpad for about 1666
hours, which is almost 70 days - doing only flashing, no booting or
testing!
I doubt seriously that you will ever achieve this ;)

What can wear out flash pretty easily is using the wrong tools, e.g. a
wrong filesystem. A regular ext2/ext3 filesystem in flash without any
extra options (like noatime) will kill your flash within days... :)

> regards holger 
CU
  nils faerber

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