ARM and SDIO WiFi Card

For size and weight reasons I really prefer the spectec cards: http://www.spectec.com.tw/wlan.htm

They offer mini and (soon to be released) micro cards. I assume (or better I hope ;)) they use the same chipset as your SDW-820, but I don’t know. Is anyone interested in investigating in this card? Drop me a note and we can arrange something. I am absolutely willing to sponsor a few of such cards if you guys are looking into developing/re-engineering a driver! Let me know! I ultimately want to run the card without OS, so just a microcontroller/-processor and the card!

Best regards, Jorg

I think that Spectec uses Intersil PRISM chips in their cards

From the embeddedworks web site it looks like the full sized b/g sdio card uses a MediaTek chipset.

Perhaps thats Intersil PRISM compatible?

those of you interested in playing, some guy has posted the data sheet for the Intersil Prisim data sheet for the Spectec 820 card on the web.

I too have gotten this document but i have an NDA signed with Spectec. He should not have posted it, so you need to nab it while you can, before they realize that its a NDA document and remove it.

sign up for here: http://tech.groups.yahoo.com/group/airdrop_user/

and go to the files section and get this pdf "PRISM Driver Programmers Manual.pdf " this doc will give you the register settings for the card.

HURY…HURY…HURY…

I once received a one line reply regarding chips from spectec.

As for the chip we used for SDW-825 or SDM-780, it is not Marvell or Atmel or Philips, but MTK.

Maybe that useful for anyone?

Regards, J

it looks like the Embeddedworks sdio page is down at the moment but I see from the cached text that I misread the page. Sorry for the confusion.

http://www.embeddedworks.net/wlan/endus … 0211g.html

The first card b/g is the spectec SDW-821 and uses a MediaTek chip - #unspecified.

The second card which I mistook for the spectec 802.11b card is actually a b/g card and uses the MediaTek MT5911

Has anyone taken the cover off the Spectec 802.11b card?

well, since i only have one to play with right now, im not doing it :wink:

I have just ordered the SDW-820 as well.

Which host platform are you working from?

Right now i am using the LPC2148 board.

http://www.sparkfun.com/commerce/produc … cts_id=545

once i get all the comminication functions down, i plan to switch to the LPC2378, ya its a larger chip but its also cheaper.

http://www.sparkfun.com/commerce/produc … ts_id=8282

I haven’t checked into it fully yet but I have a few options, listed in the most likely order I will attempt to get working

  1. Use the AirDrop P I already have (didn’t do much with). Get my Linksys CF card going with Fred’s code and then try to adapt that to SPI.

  2. Use a Olimex PC-H40 - LPC2106 module - (I guess I could try the code your working on with that module in parallel with my efforts).

  3. Use a ATMega32 or AT90USB1267 Key (I was doing some work trying to get a USB based Zydas chip working a while back).

They are all a little shy in the flash department so I will have to see where this goes.

i was also playing with the Airdrop system myself. i made a board that pluged into my LPC2378 kit then to a CF connector. i wanted to use the IO directly to the card and none of this latiching crap that they use to mimic a data or address bus. i got it working ok, with the examples given, then i was going to add the TCP stuff. as i leaned back in the chair and looked over at my shelf is when i saw the SD WIFI card and since there was a SD connector on the board i said what the hell am i doing. i am tieing up all this IO when i can just use a few simple IO lines to do the same thing. so i stoped working on the CF version and am all geared up for the SD version. My goal is speed. i have a project in mind and i need high throughput rates. however, i dont see why a guy with a very small micro like an Atmega8 to be able to get on the net, hell even a 8 pin micro could do it given enough ram and flash.

FYI, SF has had the prism data sheet linked to for a long time [here. I found it quite useful when I was writing the driver for my WiFi network detector, but that was for a CF interface.](CF Socket for Compact Flash (Sale) - PRT-00571 - SparkFun Electronics)

obsolete !

I am hoping my Spectec SDW-820’s arrive soon - I bought one to use and one to dissect :slight_smile:

when you dissect it would you let me know if there is a led in there somewhere.

Sure I will take some pics and find somewhere to post them.

Thanks!

I too am very intereted in this project. I have a 2148 and sd-card interface that I could use.

I will try to get the Spectec, could the originator post a supplier in the US?

Also a consideration is unit cost and availability. I found this one on compgeeks.com, and google turned up a reseller (Evertek wholesale) selling these by the pallet load (3400 per pallet). Think it may be usable? Its an Ambeon 54mbps 802.11b. $31 each at compgeeks.

http://www.geeks.com/details.asp?invtid … SD&cat=NET

My cards came today - I popped one open.

INPROCOMM IPN2128 (as per the cab file)

QC8594.1

A054201f

RADIO - AIROHA AL2210LP

A434421

0544J

Pictures to follow …

Is anyone aware of alternatives to this @ $139.00- http://www.sycard.com/sd300.html

seulater:
Man, it seems like im the only guy interested in this SDIO-WiFi card stuff.

Anyhosel, i am now at least getting responces back from the card now.

You’re not the only person with interest in driving an SDIO-based WiFi card. The problem I see is that it’s probably going to be impossible to write a “class driver” that covers all SDIO WiFi cards and, hence, you’re pretty much doomed to be in the backwaters. I did a lot of work on a CF-based WiFi solution with the AirDrop but ultimately decided it was going nowhere as the CF format just doesn’t have that much traction now.