24 Jun
2010
24 Jun
'10
4:10 a.m.
ard at p850ug1.demon.co.uk (Tony Duell) writes:
So? IUt's actually not much harder to tweak thigns on stripboard, and
you know your problems are due to errors in the logic rather than bad
connections, wired that have dropped out, or excessive stray capacitance
(all of which caught me when I was silly enough to use solderless
breadboards).
While that's undoubtedly a great hack, I do
have to wonder why the
chap didn't solder it up on stripboard or similar.
Because that was the prototype, and it went through a lot of tweaking to
get it to a fully-working state. The final version collapses all the logic into a VHDL description for a CPLD or FPGA,
which is much more
Pity... Big boards to TTL are a lot more fun :-)
practical but less fun to look at (and, presumably,
harder to debug
since you can't stick a scope on internal signals so easily).
Indeed...
-tony