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I think you would want an FPGA and not a CPLD.  OpenRISC is a great core to use, but I think it is verilog only right now (maybe you can use a verilog to VHDL translator).  
I've been looking into how to make a design with a CPLD, FPGA and a micro disk drive.  The CPLD would read the FPGA code from the disk drive and JTAG program the FPGA.  Then the CPLD would work as a hd controller and boot linux for the OpenRISC core.  I know how to do the JTAG programming and translate the files from Xilinx tools.  I don't understand EXT2 yet and I'm looking into that. 
I'd like to use the HD's from Cornice (http://www.corniceco.com/).  When it comes out it will be 1.5 Gb and cost around $70.
If anyone knows about how to make a core that reads EXT2 partitions and can search for and load a specific file (the FPGA image), please let me know.
This type of project could be used for rapid prototypeing an ASIC, a robust PDA or as a base for any low-volume production.
Thanks,
Brian
P.S.  The CPLD will work like the System ACE chip from Xilinx.
-----Original Message-----
From:	openrisc-bounces@o... on behalf of Wronka@o...
Sent:	Wed 12/10/2003 9:10 AM
To:	openrisc@o...
Cc:	
Subject:	Re: [openrisc] Open PDA

I think the same thing.

If you look at all the PDAs on th market, they are value-less without 
third party support.

It would seem silly to base the PDA around some fixed processor 
architect that will always run into some limitation with some specific 
application.

What about a PDA based around a low cost high density CPLD.

I already have a basic hardware design finished---was curious though to 
see the interest since cutting a board would be expensive for what 
might be an experiment. Most sizeable CPLD/FPGAs only come in BGA 
footprints, which means board development might be around a 
thousand. However I for that money I could get a handful of boards built.

If theres willingness to share the cost I'd be interested in pursuing this 
further.

The idea would be to come up with the VHDL code of a processor core 
with an LCD controller (routed out of the CPLD to an actual LCD), a 
touchscreen and button interface, and some extras like speakers/jack, a 
mic, and maybe a IRDA pair.

What do you think?

Ed 

----- Original Message ----- 
From: Ingo Maindorfer <ingo@l... > 
To: openrisc@o...  
Date: Thu, 9 Jan 2003 13:47:55 +0100 
Subject: [openrisc] Open PDA 

> 
> 
> Hello, 
> 
> I'm working with a Compaq IPAQ 3850 to develop complimentary a 
> application for 
> a german emergency medical services in Linux. But the IPAQ isn't 
> robust 
> enough for the daily work in that ambiance. The market does'nt 
> provide that 
> thing I seek with is washable and bigger and better display. 
> I looked by Intel and AMD for some nice SoC's but they are close 
> hardware.... 
> 
> What do you think about a Open PDA? 
> 
> Best regards, 
> 
> Ingo 
> 
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