Subject:
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Re: Using Port D of the Handy Board
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 16 Apr 1998 12:30:29 GMT
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Original-From:
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Fred G. Martin <fredm@media.STOPSPAMmit.edu>
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Viewed:
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781 times
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In your message you said:
> Hello everybody,
> A few month ago, someone told us that we can use port D as an ouput. But, we'
ve just read on the Handy Board FAQ that it was not possible. So, where is the
truth ???
where in the FAQ does it say that it's NOT possible? If you look at
the link
http://el.www.media.mit.edu/projects/handy-board/faq/index.html#digout
it explains how to use Port D as outputs.
> Help, help, help !!!!!!!
> We need 8 ouputs (and also 8 inputs) to do our project, any good idea will be
welcome.
now, to get 8 outputs, you might have to add an expansion latch,
because you only get 4 from Port D. There is a TO3 on the expansion
header that you can use, and PA7 on the dig input bank can be made to
be an output. that gives you 6. if you absolutely need the 2 more,
see the instructions prepared by Bill Coghill at
http://www.ednet.co.uk/~bill_altaudio/DigitalIO.html
Fred
>
>
> thanks in advance. :)
> RC99 & OM99
>
> Hope the force will be with you !!!!!
>
>
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Message is in Reply To:
 | | Using Port D of the Handy Board
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| Hello everybody, A few month ago, someone told us that we can use port D as an ouput. But, we've just read on the Handy Board FAQ that it was not possible. So, where is the truth ??? Help, help, help !!!!!!! We need 8 ouputs (and also 8 inputs) to (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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