[SI-LIST] Re: PLD programming data

Steve, all,

I guess I should have been more specific.

 I have no problem converting a JEDEC bitmap into a serial
stream of JTAG data using my own tools for the Coolrunners
of the original generation. 

 I have no problem generating JEDEC files from my sources
using the logic compiler I have written for the purpose
for the original generation of Coolrunners.

 And I have no problem to JTAG access anything which is JTAG
accessible on my boards and somewhat beyond using my
JTAG inerface module and the respective code I have written.

 My problem is that I do not have the following data:

1. Which JEDEC bit corresponds to which logic entity,
2. which jedec bit goes where in the serial stream of what JTAG command .

Any info will be greatly appreciated.

Thanks,

Dimiter

------------------------------------------------------
Dimiter Popoff               Transgalactic Instruments

http://www.tgi-sci.com
------------------------------------------------------

> Dimiter, if I understand correctly, you built your own programmer that 
> resides in an embedded system.  It should be straightforward for you to 
> implement a JAM player, and then you can program any number of JTAG based 
> PLDs, including Xilinx.  Use the free tools to generate the programming 
> file, transfer the file to your embedded system and away you go.
> 
> Steve
> 
> 
> At 03:38 PM 1/28/2005 +0200, Dimiter Popoff wrote:
> >Hi everyone,
> >
> >this is not really a SI question, but I believe there are people
> >on this list who might know the answer.
> >
> >  Several years ago I chose the Coolrunner PLD. It was Philips owned
> >then, and I got most of the programming info from them. A key part
> >was missing so I had to do some programming/reverse engineering miracles
> >to get to it, but it took me a week or two and I was fine.
> >  Before I knew Xilinx had bought the Coolrunner and, after they changed
> >it, I needed new programming data. Contacting the support
> >of Xilinx (a while back) was a waste of time, I was told that I had
> >to first make a revenue of > about $ 20 millions/quarter then they might
> >consider giving me the programming data. I am not sure (actually I doubt
> >it) this is the official company line, especially since there seem to
> >be free tools available anyway; my problem is that I don't want to
> >buy a PC they want to sell me with the free tools and they have
> >no version to run on my systems.
> >  If someone would know of a way how I could get some programming data
> >for the currently manufactured Coolrunners - or would know of an
> >equally powerful and low-power replacement which would have the
> >data available, NDA or not, please advise.
> >
> >Thanks,
> >
> >Dimiter
> >
> >P.S. I do not intend to market my programming software, it is strictly
> >for internal use - if that would be a consideration at some point.
> >
> >------------------------------------------------------
> >Dimiter Popoff               Transgalactic Instruments
> >
> >http://www.tgi-sci.com
> >------------------------------------------------------
> >
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