Subject:
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Re: [kinda OT] Using other processors (6809)
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 18 May 2000 23:59:35 GMT
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Original-From:
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Doug Sutherland <DOUG@LOS-stopspammersGATOS.NET>
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Reply-To:
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doug@los-gatos.net&IHateSpam&
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Viewed:
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1088 times
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Vic wrote:
> Depends on if you want to be done this year or not. If time and money are no
> object, designing and building your own board from scratch would be exciting
> and after just a few interations you could probably have one that is
> reliable. By the time you got done with it, it wouldn't cost more than two or
> three times the price of buying an unpopulated PCB for the Handy Board and all
> it's components.
That's what I was thinking too. But there is another consideration: the 6809
is a different class of processor than the 68HC11. The HC11 is a microcontroller
while the 6809 is more of a general puropose microcomputer CPU. Although either
could certainly be used to control robots, the HC11 is already designed with
interfacing to machinery in mind, for example it has ADC onboard. There are
likely also some power consumption issues to consider. The 6809 was the core
processor for several microcomputers like the radio shack color computer. It
would be a good experience to work with either or both, but if ou choose a
general purpose CPU you need to provide more interface circuitry (for example
adding ADC circuits). If you have robotics in mind you might want to take a
look at these:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=330302979
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=334106447
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=332904262
-- Doug
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Message is in Reply To:
 | | Re: [kinda OT] Using other processors (6809)
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| Vic, Depends on if you want to be done this year or not. If time and money are no object, designing and building your own board from scratch would be exciting and after just a few interations you could probably have one that is reliable. By the time (...) (25 years ago, 18-May-00, to lugnet.robotics.handyboard)
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