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Re: Flex Circuits

From: hurley bryan <>
Date: Mon, 1 May 2000 11:56:49 -0400

So basically, while the credit card thing and the uCSimm are very
similiar, availability is the problem, and we want a GPL hardware
solution, kind of like what Compaq did with Itsy and the other folks did
with the LART (I think), so anyone can build it with the right tools?

Sounds good..
Bryan

On Mon, 1 May 2000, Doug Sutherland wrote:

> hurley bryan wrote:
> 
> > How is this different than the uCSimm that is a 30 pin SIMM, or the credit
> > card linux that is pretty much the same that was mentioned on Slashdot on
> > sunday?
> 
> It's not different. ucSimm is a dragonball based system. But 
> availablility of the boards is somewhat questionable. I waited
> a long time then finally gave up and cancelled my order. 
> 
>   -- Doug
> 
> 
> 
>  
> > Bryan
> > 
> > On Sat, 29 Apr 2000, Bryan Andersen wrote:
> > 
> > > Charles J Knight wrote:
> > > > 
> > > > > On the topics of flexible circuitry, big belt buckles, modules
> > > > > in collars, etc. These are all great and interesting ideas.
> > > > 
> > > > Hey, noone ever said that we weren't a creative group.
> > > > 
> > > > > But the goal was low cost and simplicity. I have to wonder
> > > > > what the tradeoff of cost vs benefit on the flexible circuits
> > > > > at this point. Seems to me we would be better off sticking to
> > > > > traditional PCB methods for now. If people want to then take
> > > > 
> > > > True.  A set of specs and some schematics are our goal at
> > > > this point.  Next comes a prototype.  If someone wants to build
> > > > it into a collar or belt buckle, so be it...  The case isn't the
> > > > important part, though it is important to a total, univeral design,
> > > > if it ever becomes commercialized.
> > > 
> > > Simplicity is kinda the reason I mentioned a Palm Pilot like 
> > > device.  I've looked at what it take to make a Motorola DragonBall 
> > > based system.  It's simple.  Most of the tricky stuff is integrated 
> > > into the DragonBall.  It directly interfaces to both RAM and FLASH 
> > > memory without extra components.  It will drive grey scale LCD 
> > > pannels up to 1/4VGA size.  Onboard seial is 1 Async UART (RS-232 
> > > compatible) and one IC2 compatible serial port.  You could add 
> > > extra serial devices if you wished using some of the address decode 
> > > logic to address them.  It would be no problem making it on one PCB 
> > > of less than 3"x4".  One could also provide for expansion on a 
> > > second PCB quite easily.  The only real difficulty is dealing with 
> > > surface mount components.  
> > > 
> > > -- 
> > > |  Bryan Andersen   |      |   http://softail.visi.com   |
> > > | Buzzwords are like annoying little flies that deserve to be swatted. |
> > > |   -Bryan Andersen                                                    |
> > > 
> > > --
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