Subject:
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Re: 68hc11F1
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 28 Jul 1998 07:12:36 GMT
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Original-From:
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Richard meester <richard.meester@AVOIDSPAMchess.nl>
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Viewed:
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961 times
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Hello Mike,
Sorry for the cryptical message,
I don't have a handyboard running at 16 Mhz, i made my own board,
currently with a 68hc11F1(@16Mhz), 32 K external RAM, 32k External
flash. My programs are run from the flash, leaving aprox 32 k of stack
and heap. I also have a 50 pin header, to connect several other boards.
On this connector i have connected 2 * 4K of IO space, with chip select
lines. So i have 32k - 8k - 1k left for stack and heap. On this 2 * 4k
io space i'm designing a servo board, for rc hobby servos, 16 in total
with just 2 ICs. Another board i'm designing are H-bridges for 3 DC
motors. I'm thinking of designing 3 PIC micro's for the PID interface as
well as the encoder stuf and PWM stuf, and just interface to the PIC
with giving positions to move to and a start signal.
Hope this clarifies things.
If you want more information please email me, I will put it on my
homepage.
Regards Richard.
Email rjc.meester@wxs.nl
http://home.pi.net/~rmeester
Mike Davis wrote:
>
> I guess I missed the previous postings. Are you saying that you have a
> HandyBoard running at 16Mhz (crystal or bus speed)? What, if anything
> special, did you have to do to get it to run at this speed?
>
> Date sent: Mon, 27 Jul 1998 10:14:08 +0200
> From: Richard meester <richard.meester@chess.nl>
> To: "handyboard@media.mit.edu" <handyboard@media.mit.edu>
> Subject: 68hc11F1
>
> > Hello all,
> >
> > Thanks for all the replies that you have send.
> >
> > My board is now working, at 16 mhz with flash and ram.
> >
> >
> > Richard
>
> --
> -----------------------------------------------------------------
> ipscone@halcyon.com Shoot-To-Win!
>
> Protect the 2nd Amendment! Your rights may be next!
> -----------------------------------------------------------------
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