Per Dalgas Jakobsen wrote:
> 
> Hi there,
> 
> I've been asked to make an embedded system involving an 802.11b connection.
> I've checked different possibilities, and have ended up with choosing either
> PC Card or CompactFlash, leaving all the high frequency stuff to sombody
> else ;-)
> However the interfacing between the card and the microprocessor concerns me
> a bit.
> I do not need card-socket services, plug'n'pray or any of that stuff; Just
> bare-to-the-bone chip-access.
> Cards will not be added nor removed - The system will be delivered with a
> specific card and specific firmware for that card.
> 
> Any suggestions?
> PC Card or CompactFlash?
> Which 802.11b card? (Preferably a low-cost ;-))
> Where to get the specifications or even sample code for that card?
> - There *must* be a company that wants to their products to get an edge over
> the others?!??
> 
[snip]
> 
> Thanks
> 
> Per

I've been working on a similar project for my Senior Design class.  I've discovered the following.

PC Card and CompactFlash share a common electrical interface (see the CompactFlash spec) so this
choice is arbitrary.

I chose to use a card with a PRISM II chipset as Intersil, www.intersil.com, will give you a driver
development guide (RM025) with an NDA.  Linksys cards are PRISM II based, as are many others.  There
are also open source drivers available for these cards.