cbscpe wrote:
I would rather go for Atmel CPLDs. They are available in PLCC package and can be programmed via a USB Adapter from Atmel. They are much more flexibel and can be programmed in circuit. In the meantime I use them a lot for all my 6502 and PDP-11 projects even in TQFP-100 packages
Peter
That's great, but my intention was to (re) create or re-imagine an 8-bit system of the 1980's rather than the next Foenix or Commander X64.... PALs were about then, as were ULAs, so for my system I felt that a GAL was just fine.
Saying that, I now have an ATmega 1284p and am looking at a little $5 ARM based SBC for graphics in my system, so what does that mean... (!!!)
Also, I know sod-all about CPLD/FPGAs, my design tools are limited (can I program them from Linux?) so there would be a bit of a learning curve to get over and I wanted a simple system relatively quickly which is what I have. One GAL replaces a handful of TTL and it works really well.
One day I might look at them, maybe...
Cheers,
-Gordon
_________________
--
Gordon Henderson.
See my
Ruby 6502 and 65816 SBC projects here:
https://projects.drogon.net/ruby/