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Re: Corel NetWinder as a wearable?

From: Ivan Porres Paltor <>
Date: Fri, 02 Oct 1998 09:37:46 +0300

Hello list!

I am interested in building my own wearable. I have been thinking in
three different options:

 * The Lizzy approach: PC/104 + Linux
   Pros
	+ I believe it is easy to build 
 	+ Linux is powerful and flexible. 
	+ ISA architecture is simple. A lot of peripherals in the market
   Cons
	- Size?, Power?

 * The custom approach: a microcontroller (may be Hitachi SH) + RTOS. 
   Design and build my own board choosing specific components.

   Pros:
	+ Smallest
	+ Less power required
   Cons:
	- Harder to get the initial prototype.
	- Incompatible. All the software must be ported
	- Harder to program and to debug software. Since the target platform
and the host are really different you have to debug the software over
the target (the wearable)

 * The commercial approach: using Netwinder or a Windows CE machine or
whatever.
   Pros:
	+ Plug & Play
   Cons:
	- It can be difficult to customize to my own project.

Is this list reasonable? Are there other approaches?
Any hint?

Rehmi Post wrote:
> Inside, there's a byzantine hierarchy of mother, daughter, and
> grand-daughter boards, with surprisingly little green wire to patch
> everything together.  You have to wonder how much the SA110 eval board and
> the Digital Network ARM Reference Design (DNARD) influenced this box.
Can you add your own custom boards? PCMCIA cards?

Ivan
-- 
Ivan Porres Paltor                    Turku Centre for Computer Science
Åbo Akademi, Department of Computer Science  Phone: +358-2-2154033   
Lemminkäinengatan 14A                             
FIN-20520 Turku - Finland                    http://www.abo.fi/~iporres

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