Re: SanDisk CF strange problem

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From: Michael Schwab (michael.schwab_at_cobecv.com)
Date: 05/16/04 

Date: Sun, 16 May 2004 14:07:34 -0600

We had that same problem with the Advantech PCM5820 when we went from a 64Mb
Kingston to a 256Mb SanDisk (Industrial Grade). We were told SanDisk
changed the firmware on their newer chips, and we needed to make a change to
the PCM5820.reg file to support this, as follows:

C:\WINCE420\ADVANTECH.420\PDK\PCM5820\PCM5820.reg:

· Under all 4 of [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\PCI
\Template\GeodeIDE\Devicex] change "Settings"=dword:F to "Settings"=dword:0
(to get it to work with the SanDisk IG 265Mb flash chip).

It's possible you may have to try all values from 0 to F in the "Settings"
field, until you find one that works for your flash. I went from "F" to
"1", and then "0" before it worked for me. Since it otherwise can't see the
flash, you can't use the persistent registry, so unfortunately this means
doing a Platform Builder build every time you change the Settings! (Bummer!)

Michael Schwab

"Stefano Vaccari" <stevcc@tin.it> wrote in message
news:OD3NRD2OEHA.2636@TK2MSFTNGP10.phx.gbl...
> We developed an WINCE 4.2 image for a PCM5820 geode board and everything
> worked fine until we tried 64MB San-Disk Compact Flash. With that CF the
OS
> loads normally from CF, but once loaded WINCE doesn't see the CF. We
don't
> have that problem with other CF (64MB or 128 MB Kingston ) or even a 32 MB
> San-Disk CF.
> Note: we tried 3 San-Disk 64MB CF and all of them behave the same.
>
> Thanks in advance
> Stefano
>
>

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