Re: [CAD_CAM_EDM_DRO] RE: Basic Stamp + Encoder

Hi Thomas,

I'd be interested in a copy of your PIC code - I'm just trying to learn a
bit about PICs and a DRO is one of the first projects I want to tackle.
Thanks,

Best wishes,
Ian
--

Ian W. Wright
Sheffield, UK

----- Original Message -----
From: "mayfieldtm" <mayfiet@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, July 01, 2002 6:14 AM
Subject: [CAD_CAM_EDM_DRO] RE: Basic Stamp + Encoder


> The PIC makes a great chip for quadrature decoding.
> I wrote some code just a couple months ago. If I remember correctly,
> I was able to continually poll the encoder input lines every 1 to 2
> microseconds! Used about a dozen lines of code, and a 16 byte lookup
> table. This was a more dedicated routine and interrupts were not
> necessary. At this rate I have little worries about missed steps.
>
> My code is at work, and I won't be able to retrieve it till Tuesday,
> If you want a copy let me know, however... I think you are well
> informed all ready.
>
> I you look into using PIC's, think about the 'flash' series such as
> the 16F873. Very easy and quick to program and reprogram and
> reprogram and ....
>
> Very inexpensive and habit-forming. I use them for everything.
>
> Also... Look into the SX series of chips. Also available from
> www.parallaxinc.com , they are pin and program compatable with the
> PIC series, but run at 50 - 75 Mhz and execute every clock instead of
> 4 clock cycles in the PIC. Also inexpensive chips.
>
> Thomas Mayfield
>
> PIC my Brain or PIC my Nose, but never PIC my Pocket.
>
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