[PROTEL EDA USERS]: Re: PLD support

[Jon Elson <jmelson@artsci.wustl.edu>]

Robison Michael R CNIN wrote:

> hi phan,
>
> can you extrapolate a bit on your PLD comments about Protel?  are we
> talking about the CUPL language and producing jedec files here?  cuz
> i'm getting ready to attempt to burn a pal using a jedec i produced with
> the CUPL, and it'd be nice to know about any bugs in it.

You mean you did this using Protel?  If the pieces of the software (schematic
libraries, if used; part libraries, device specific code generators, etc.)
are all in place for the manufacturer and device, then it generally works
OK.  The problem is there are SO MANY pieces required, that many
manufacturers and/or specific parts are not properly supported.
Xilinx is one in particular that has bad support.  The fitters/mappers
are over 10 years old, and Xilinx has introduces about 6 new device
families since then.  This is generally larger stuff than just PALs.

Jon