20 Jun
2007
20 Jun
'07
6:58 p.m.
Alexandre Souza wrote:
Phil, would you mind in sharing a bit of your
knowledge?
I have a "starter's kit" with a 9572 but just cannot understand how
do I begin to make things work. Found no good tutorial on net. Would you
mind helping me (and possibly others on/off this list) in "how to begin
playing with CPLDs?
A) Make sure the software is on your computer!
B) Make sure you have the PC hardware!
C) Make sure you have a good printer - all the docs now days
are in PDF form.
D) Don't expect to find the chip you design with today ...
it is already outdated.
E) *** Watch out for routing problems problems ***
You can only get about 70% to 80% of the logic
in CPLD used before you need to go to a bigger chip.
F) Your CAD/PCB programs can handle any weird pin out
often need by new chips ... they don't make CPLD's in
16 pin dips. :) That is that last reason I am not using
CPLD's , I need a 84 pin PLCC socket with my PCB program.
Thanks a lot! I'm looking forward that for
months!
Alexandre