[SI-LIST] Re: PLD programming data

Dimiter, if 1) you are asking for the information that takes one from an 
EDIF file to a bitstream, I think you aren't going to get very far.  Why do 
you need to rely on your own tools to do a job the mfg. tools do for free?

As to 2) if you build a JAM player, then the mfg. tools will build the 
right JAM file for you.  the only possible tweaking is how many TCLKs are 
needed to bypass a given device.

Steve


At 06:17 PM 1/28/2005 +0200, Dimiter Popoff wrote:
>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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