Re: SanDisk 128MB CF + WiFi

From: Me (Me_at_there.what)
Date: 02/24/05 

Date: Thu, 24 Feb 2005 06:29:52 -0000

We have had timing problems with Industrial (and some Commercial grade)
SanDisk cards (in a boot-loader), had to add a delay (at least 100ms)
between issuing a reset and reading the first Tuple.
Might be worth having a look at the driver and seeing if adding a delay
helps.

"David Varley" <David.Varley@cborn.com> wrote in message
news:OMhdXYgGFHA.3628@TK2MSFTNGP15.phx.gbl...
> My platform is a Kontron ThinkIO, an industrial X86 with a CE.NET 4.2 BSP
> (CEPC based) supplied by Kontron.
> It has onboard CF (32MB) and a single external CF slot.
> I've been successfully using external 256MB CF, booting MSDOS and then CE
> via LOADCEPC, for some time.
> Reading on this forum that Prism based WiFi cards should work with the
> Intersil driver, I bought a SanDisk SDWCFB-128 to try. I installed the
> software in the same way as on the other CF cards, and it boots MSDOS,
> which
> then loads CE. The problem is that neither the SanDisk or the internal CF
> appear as mounted volumes under CE. If I pull the SanDisk card and boot
> the
> same image from internal CF, the internal one appears fine.
>
> Tracing shows that both disks are detected, and identified, but have
> read-errors when the system trys to mount them.
> In the identification phase, the only difference between the SanDisk and
> the
> other external CF seems to be the PIO timing mode, 1 for SanDisk and 4 for
> the other. Can anyone shed light on this? Have others used the SanDisk
> card
> successfully?
>
> 0x81bf11d8: ATAPI:ResetController entered
> 0x81bf11d8: ATAPI:ResetController: Controller reset done
> 0x81bf11d8: NumSec=62976 BytesPerSec=512 FreeSec=0 BiggestCreatable=0
> 0x81bf11d8: Partition HD0 NumSectors=62960
> 0x81bf11d8: MSPART!PD_OpenPartition: dwStoreId=00089410, PartName=HD0
> 0x81bf11d8: >>> Loading module fatfsd.dll at address 0x03F00000-0x03F22000
> (RW data at 0x01FF9000-0x01FF9674)
> 0x81bf11d8: FSD_MountDisk: mounting volumes for hDsk=00083E60
> 0x81bf11d8: ATAPI:ResetController entered
> 0x81bf11d8: ATAPI:ResetController: Controller reset done
> 0x81bf11d8: FATFS!ReadWriteDisk(READ, sector 0) failed (30)
> 0x81bf11d8: FATFS!ReadWriteDisk: retrying...
> 0x81bf11d8: ATAPI:ResetController entered
> 0x81bf11d8: ATAPI:ResetController: Controller reset done
> 0x81bf11d8: FATFS!ReadWriteDisk(READ, sector 0) failed (30)
> 0x81bf11d8: FATFS!MountDisk: error reading MBR (30)
> 0x81bf11d8: FATFS!OpenVolume: access time updates disabled
> 0x81bf11d8: FATFS!OpenVolume: event logging enabled
> 0x81bf11d8: FATFS!OpenVolume: automatic scanning disabled
> 0x81bf11d8: FATFS!OpenVolume: write verify disabled
> 0x81bf11d8: FATFS!OpenVolume: extra FAT on format disabled
> 0x81bf11d8: FATFS!OpenVolume: force write through enabled
> 0x81bf11d8: FATFS!OpenVolume: Codepage = 1
> 0x81bf11d8: FATFS!OpenVolume: Number of path cache entries = 50
> 0x81bf11d8: FATFS!InitVolume: sector 0 byte 0 suspicious (0x0)
> 0x81bf11d8: FATFS!InitVolume: invalid BPB, volume deemed invalid
> 0x81bf11d8: FATFS: Sec/FAT = 0!!!
> 0x81bf11d8: FATFS: CacheSize = 16!!!
>
> Thanks for your help,
>
> David
>
>