2GB SanDisk SD card

[MikeL]

Hi,
I have a ChipworkX Development System, and if I insert a 2GB SanDisk SD card into the SD/MMC connector, then this statement:
     PersistentStorage sdr = new PersistentStorage(PersistentStorage.PersistentStorage_ID_SD);
produces an exception:
     Exception System.Exception - 0xffffffff   (which I believe is the same exception I would get if no card were inserted)
If I insert another SD card, a Canon SDC-32M, then the line above doesn't produce an exception, although the code fails later because the card has a FAT filesystem, not FAT32.
Does anyone know why the system doesn't like this particular SD card?
Thanks!
--MikeL
 

[support]

Are you using the latest firmware?

[GHI_Support]

Please try to mount the SD card more than once and see if it works. We have several size of snadsisk here and they work fine from the first time.
Try this in empty project:
while(true)
{
  Thread.Sleep(1000);
  try
 {
   PersistentStorage sdr = new PersistentStorage(PersistentStorage.PersistentStorage_ID_SD);
   Thread.Sleep(1000);
    sdr.Remove();
  }
  catch(Exception) // sd failed
 {
 }
}

[MikeL]

1. The firmware on my V1.2 ChipworkX Development System is version 01.01.000.
2. I tried the suggested while() loop and it failed every 1-sec.
3. Instead of a 2GB SanDisk card, I used a 256MB SanDisk card, and this worked.
4. Are any of the SanDisk cards you've tried 2GB SD cards?

[GHI_Support]

Can you please check resistor R4 on the development system, it should be 0 ohm.
We do not have 2GB, we have 1 GB. They should work almost the same...
If still having problems, you can mail us the SD card you have and we will take a look at it here.