SanDisk 128MB CF + WiFi

From: David Varley (David.Varley_at_cborn.com)
Date: 02/24/05 

Date: Thu, 24 Feb 2005 11:16:23 +1100

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