[time-nuts] I want a good micro-controller
wje
wje at quackers.net
Sun Aug 17 02:49:35 UTC 2008
Well, yes, it was. The first computer I actually owned was a PDP-8,
essentially stolen in pieces from the DEC scrapyard. Core memory, who
would have imagined that it would actually work? I mean, you could
actually see the bits. And it had blinking lights, too. I still insist
a computer isn't a real computer without blinking lights.
Which leads to yet another little side diversion... there was some
really fantastic hardware done back in the '70s and '80s, without the
benefit of DSPs, FPGAs, or microprocessors that had more power than a
modern wristwatch. I love reconditioning equipment from that era, and
it's remarkable what could be done with a handful of discrete
components that today is done with a million transistors worth of ICs.
My oldest working device is a 5061A from '68, not counting useless
things like my saturated-cell voltage standard; my favorite is a tie
between my HP 5370A and my Solartron 7081 laboratory dvm. Another
little gem (in my opinion at least) is the Polarad 632 spectrum
analyzer. They're not exceptional by any modern measure, but they're
dirt-cheap and do manage better than 120 db noise floor and a 10 Khz to
2 Ghz range. Plus, they have a nifty discrete IC digital video capture
board that does scan storage, scan averaging, and peak detection, all
without a single microprocessor in sight.
Which reminds me, what happened to all that wonderful European
engineering from companies like Datron and Solartron? Their equipment
frequently beat the pants off of anything we were doing at that time
(as I gaze lovingly at my pair of Datron 4910's).
Bill Ezell
----------
They said 'Windows or better'
so I used Linux.
Dave Mallery wrote:
bill
but wasn't that hardware beautiful??? (gazes at 11/70 backplane on wall...)
dave
On Sat, Aug 16, 2008 at 10:10 AM, wje [1]<wje at quackers.net> wrote:
You certainly don't need formal training to be a good programmer; I've
seen plenty of code from CS grads that's terrible, and very nice code
from art majors.
In my book, a good program is one one that's organized logically, well
documented, and performs the job it was designed to do. A god
programmer is someone that produces such programs. That's it. The
problem is that, with the advent PCs and easily-accessible programming
tools, everyone thinks they can write code, and many can't. Then what
you end up with is a tangled mess that's unmaintainable and
indecipherable.
It's interesting that any number of EE's will take great care in
circuit design, but then throw together some poorly-designed code to
run their beautiful circuit. But, this has been endemic in the hardware
industry for as long as I've been around. Hardware companies frequently
have the attitude that it's the hardware that's important and the
software is just one of those minor bits that has to get tacked on.
This was true even for some companies that should have known better;
there were plenty of HW engineers I ran into back in the old Digital
days that, even though they were building minicomputers, really
considered software an unfortunate requirement that had to be shipped
with their beautiful hardware.
Ah well, this is really wandering off-topic and my blood pressure's
going up. I think I'll go write some C code for an 8-bit micro to calm
down. And yes, I use vi. :)
Bill Ezell
----------
They said 'Windows or better'
so I used Linux.
Scott Newell wrote:
At 07:36 AM 8/16/2008, wje wrote:
I have both EE and CS degrees, and I work in both worlds. In my humble
(but completely accurate and stable) opinion, Basic is not a programming
language. It's a tool of Satan designed to convince people that they are
programmers when they really should stick to their janitorial duties.
This is a subset of the general problem that everyone thinks they are
programmers, and usually think their code is perfect. But, that's a rant
for a different audience.
So, how do you tell if you're not a programmer, but pretending to be
one? My code is far from perfect, but it can usually be made to get
the job done. I try not to cut too many corners, and the ones that I
do cut bother me. But when you're the lone programmer on projects,
it's hard to know if you're crummy or decent, since there's no one to
measure against. (Of course, there's the metric of 'product shipped,
product works, bossman happy, paycheck cashed', but that doesn't
distinguish between good and bad programmers, just programmers that
can fool others along with themselves.)
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