[OSM-talk] NaviGPS

[Dave Stubbs]

It's a bit weird really.

I have a 32MB SD card that came with my camera - that crashes the gps
if you put it in, you can't do anything ill the card is removed. I'm
guessing that's not a 2.85V card.

I have a 512MB Jessops branded card. The gps always shows "FAIL" when
trying to format it, and if you mount the card in Windows it thinks
it's FAT32. If I format the card in Windows it works in the gps for a
single save file, then it ceases to recognise the card.

I have a 128MB SD card that is branded Palm. That formats fine, and
the gps will happilly spew data into it for a while until randomly
turning itself off. The data written to the card is always corrupted
though; usually sprayed all over the directory listing.

I have a 2GB Sandisk Ultra II card which works perfectly.

I don't know whether any of this is the normal 2.85V problem, or
whether I've just been unlucky in finding 2 cards that don't implement
the SD card spec properly (assuming the gps implements it properly). A
friend of mine was telling me that there are a large number of SD
cards out there with bugs in them that device manufacturers are
constantly writing work around code into their drivers for.

Anyway, it's OK for now as I can just grab the 2GB card from my camera
when out mapping -- I don't need 7 megapixel street signs!

Dave

On 21/10/06, Etienne <80n80n at gmail.com> wrote:
> If you are sure you have a 2.85 volt SD card and it still doesn't work, try
> reformatting it using the NaviGPS's format function - it is supposed to be
> FAT16 but is a bit fussy and doesn't always seem to like the way other
> devices make FAT16 volumes.
>
> Etienne