Paul Koning wrote:
>
> >>>>> "yodaiken" == yodaiken <[EMAIL PROTECTED]> writes:
>
> yodaiken> It's not just the money, but the interface and the hosting
> yodaiken> system. What I really want is to be able to invoke a state
> yodaiken> machine gennerator dynamically, have it generate a circuit,
> yodaiken> upload the circuit to the hardware, all on line. Even
> yodaiken> ignoring the horrors of NT, the tools are not designed with
> yodaiken> this kind of work in mind -- although I'm told that Xilinx
> yodaiken> has some good tools of this sort hidden away.
>
> Interesting notion. I remember early Xilinx app notes that talked
> about reprogramming the device on the fly. (The example was an
> instrumentation recorder with a CPLD not big enough to hold both
> playback and record logic, so it would load whichever you needed
> depending on what you were doing...)
>
> As for tools, I remember that some people at DEC's Palo Alto research
> center developed their own Xilinx tools because the stock ones did not
> do a good (high density) job on the sort of designs they were working
> on. I wonder if those were ever made generally available.
>
You might want to look at http://users.ox.ac.uk/~adrian/harptop.html .
It's a bit dated now. And we generated Xilinx XNF and used their old
tools for the back end.
But the Harp boards are all about reconfigurability: designed before Tom
Kean's XC6000 chips were released and then killed by Xilinx :-(
ael
--
Dr A E Lawrence (from home)
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