Re: 12 LED resistance circuit help


"Anthony Fremont" <spam@xxxxxxxxxxxx> wrote in message
news:9hYae.25898$AE6.3605@xxxxxxxxxxxxxxxxxxxxxxx
>
> "Lord Garth" <LGarth@xxxxxxxxxxxx> wrote in message
> news:1vXae.459$m85.345@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> > "Anthony Fremont" <spam@xxxxxxxxxxxx> wrote in message
> > news:X2Xae.25888$AE6.11870@xxxxxxxxxxxxxxxxxxxxxxx
> > >
> > > > A one off for a micro is gonna cost you the micro, a programmer, a
> > > > learning curve and programming and debugging time.
> > >
> > > How come the full cost of a programmer and the micro's entire
> learning
> > > curve gets factored in every time a micro is mentioned as a
> solution?
> > > It's a one time cost, just like the rest of anyones test equipment
> or
> > > education. I spent less than $75.00 on my programming hardware and
> the
> > > dev tools were free from Microchip. My scope cost me more than $400
> > > fifteen years ago and it was used then. Nobody worries about the
> > > thousands of dollars needed for the rest of the stuff you need to
> > > effectively tinker in electronics, just the $50 for the programmer
> like
> > > it's some kind of major show-stopper. IME, debugging time for this
> > > project would be virtually non-existent and the end result would be
> more
> > > useful since it would have a much greater dynamic range on the time
> > > constant.
> > >
> >
> > As was mentioned here long ago, and is still true, "Use a PIC" is much
> too
> > generic of a 'solution'. It doesn't teach much about electronic
> hardware
> > and of those that suggest a PIC as a solution, maybe one has followed
> > through
> > with schematics AND source code.
>
> I know that I have provided PIC code for more than one person on usenet.
> Whenever I suggest using a PIC to someone, you can consider it a given
> that I intend to help them with their code and circuitry if they choose
> to try it.
>
> > Look at the PIC question today, the OP asks why the software he DL
> doesn't
> > see the programmer he built. He links a page but we don't have a clue
> if he
> > etched a PCB of space wired the thing. He has not gotten back with
> any
> > updates. It's typical.
>
> Given the circuit he chose to build, I'm not surprised that it doesn't
> work. I would agree that it's "typical" of a good many newbie posts
> regardless of whether they're using a PIC. At any rate, his problem has
> nothing to do with a PIC chip, yet.
>

I'm not anti PIC, my burner handles many devices including PIC. I feel
that if it can replace between 6 to 10 ICs or if you need one of their
more advanced features like PIC with USB, then it's okay. I'd have to
admit that their Harvard architecture is odd compared to von Neumann
architecture. I understand the efficiency, it's reminiscent of AOS vs. RPN.

The versions and capabilities are many that one is easily overwhelmed by
the variety. That's one reason why I would like to see a Z-80 running a
TCP/IP stack. It would show that a '70's device still has uses.




.

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