I'm not sure that my current project, a household "hobby" robot, will even
com close.  It will be using a 16F874 as the main brain and 5-6 F84s for
various sub-systems (drive, sensory, user IO, power systems, etc.) but that
provides enough for me at the momentt!!

----Original Message-----
   >From:       Dan Michaels <oricom@USWEST.NET>
   >To:         PICLIST@MITVMA.MIT.EDU
   >Cc:
   >Bcc:
   >Subject:            Re: [PIC]: MultiPICs = PushMePullYou <-- Cudos
   >Type:       IPM.Note
   >Date:       Friday, October 20, 2000 4:58 PM
   >
   >In the wild flurry to be the first to sail a PIC around
   >the world, my poor little pushmepullyou idea was overlooked.
   >
   >This is actually a serious inquiry. Any comments about having
   >dual-clock operation by putting 2 PICs exactly in parallel,
   >with each running off a different clock - say 20mhz vs 32khz ???
   >
   >See below:
   >=========
   >
   >Lance Allen wrote:
   >>Bob Ammerman wrote:
   >>
   >>> Here's a question/contest:
   >>>
   >>> who has built the system containing the most PICs?
   >>>
   >>> I suppose we'll need a few categories:
   >>>
   >>> Most PICs on one board
   >>>
   >>> Most PICs in one box
   >>>
   >>> Most PICs in one room
   >>>
   >>> Most PICs interconnected worldwide via any medium
   >>>
   >>
   >>I am sure this will be puny my many standards but my record is 3 on one
   >board, a
   >>16C74, 16F84 and 16C54 all used to control a powerful stepping motor in
   >very fine
   >>increments of speed.. a sort of DDS, drive a 9 digit LED display, read
an
   >encoder
   >>and various other inputs. It worked well too.
   >>Now I would use an (stone the heretic!) Atmel FPslic combined FPGA and
AVR core
   >>since I now have access to all the development gear for such beasts at
my
   >new job.
   >>
   >
   >
   >Hmmm, this is just the latest weird thought from the weird
   >land somewhere over the rainbow - ie, Boulder, where Dorothy
   >landed after leaving Kansas:
   >
   >People keep wanting to run a PIC off 2 different clocks. So
   >how's about 2 PICs, wired with all pins exactly connected in
   >parallel, except /MCLR and OSC. One goes 20 Mhz, the other
   >32Khz. When one is going, the other is held in reset /MCLR=low
   >[and all pins float]. Exact interplay details to be worked
   >out. To be called the "2DoNothing" or "pushmepullyou" circuit,
   >or something or other.
   >
   >So how much mA does a PIC draw when held in reset, anyways?
   >Powerdown current = 1.5 uA ??????
   >
   >- danM
   >
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   >
   >

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