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Re: Interface LPC2106 to PCMCIA card

2004-04-30 by cpexed

Haha I purchased the circuit cellar article I almost fill guilty using
it.... but thats ok. Thanks for the tip now my task is just porting
this to the lpc2106.

Josiah
--- In lpc2000@yahoogroups.com, "the ARM Patch" <thearmpatch@c...> wrote:
> Do a goggle on "WiFi-SniFi".  It was an interesting project the appeared
> in the Circuit Cellar Ink  August 2003 issue.
> 
> -Bill Knight
> theARMPatch
> 
> 
> 
> 
> On Fri, 30 Apr 2004 07:08:26 -0000, cpexed wrote:
> 
> I want to attempt to interface a LPC2106 to a PCMCIA wireless network
> card (PRISM based chipset, using linux drivers as refrence).
> 
> As far as hardware goes what options would be best.
> I have several PCF8575 chips, these are 16 bit IO expanders for the
> I2C bus. Using four of these i can have 64 IO bits accessible via I2C,
> problem is they are surface mount and will be a pain in the butt to
> mount on a board (I am a student and have limited soldering equipment
> and expereince and buget for that matter). Or I can use one or two of
> these or 8 (maybe even 16 but i dont know if i got that to spare) bits
> straight from the LPC2106 and several latches to build up enough bits
> to control the card. But that seems messy to me.
> 
> My other option i am considering is a CPLD or an FPGA which will drive
> the pcmcia card, my main concern with this is for my project I already
> have maxed out my budget and dont want to fork over for another
> development board. And since I am have never worked with programmable
> logic devices I am scared just to buy a chip and try to mount it on a
> board (see earlier concerns about my soldering skills)
> 
> I am also on a very tight development schedule I need a working
> prototype in 5 weeks.
> 
> I also do not have the specs for the pcmcia bus and they want lots of
> money for them. can anyone give me any basic timing information like
> how long signals need to be available and such. I will try to track
> down some datasheets to get this info.
> 
> Is it possible to operate a prism based card in 8bit mode? will I need
> all the address lines?
> 
> At this point i am not concerned about sending data over a wireless
> network, just want to be able to view availble networks and statistics.
> 
> zworld has a rabbit uC controlling a wireless card and doesnt seem to
> use any special hardware but at a cost of $300, i want to do this for
> much cheaper.
> 
> Thanks for any help advice warnings etc
> 
> Josiah Vivona
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links

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