Re: 12 LED resistance circuit help


"Anthony Fremont" <spam@xxxxxxxxxxxx> wrote in message
news:v62be.25967$AE6.3244@xxxxxxxxxxxxxxxxxxxxxxx
>
> "Lord Garth" <LGarth@xxxxxxxxxxxx> wrote in message news:byYae.498
> > I wrote:
>
> > > 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
>
> 6 to 10? That sounds like you may be just a tad bit resistant to using
> them. ;-)
>
> > 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.
>
> Coming from an assembly programming background (on Von Neumann stuff of
> course), it was a bit strange to me at first too. PICs, however, are a
> godsend for me. They let me build the kind of stuff that I always
> wanted to do, without having to dedicate my life to hardware design.
> I've also been able to get projects working that I could never have done
> the "traditional" way.
>
> > 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.
>
> I believe the Rabbit might interest you then. I haven't played with
> them, but AIUI they are very much like the Z-80 instruction set and they
> come with a TCP/IP stack. They're too expensive for me though.
>

I thought the Rabbit was too expensive as well. I have a similar product
I bought from Sparkofun, it was about $60. Under the RJ-45 is a 20MHz
processor. It outputs in parallel but I've not yet taken the time to work
with
it.



.

Relevant Pages

  • Re: 12 LED resistance circuit help
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  • Re: Rabbit 4k and ethernet
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