31 May
2006
31 May
'06
4:57 p.m.
Tony Duell wrote:
That, I am afraid, is one reason I avoid programmable
logic chips. By the
time I've finished the design, the darn chip is unavailable.
I bought my chips first ... and the programmer/demo board. :)
And that's the other reason I avoid them. Well, and the fact that it
takes me longer to design, debug, and program a device with those tools,
than to hand-wire a 1-off board of TTL-ish logic chips.
But alas I want to do a home brew 18 bit CPU and that don't fit well
with 4 bit wide TTL logic, so I got about 200 14/16 pin TTL for a 18 bit
ALU or two CPLDs. I still favor the TTL rather than CPLD's.
-tony