Subject:
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Re: GCC 2.8.1 for HC11
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 8 Apr 1999 19:24:47 GMT
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Original-From:
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Curt Mills, WE7U <hacker@tc.fluke.!nomorespam!com>
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Viewed:
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981 times
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On Thu, 8 Apr 1999, Keith Hearn wrote:
> I spent last weekend studying how to program the HB in assembly.
> There is a woeful lack of documentation for it. There is plenty of
> docs on programming in IC, but below that level, you end up looking
> at schematics.
>
> Is there something I've missed that describes how to do low level
> programming on the handyboard?
>
> Just about everything I've figured out how to do came from reading
> other people's code.
I've been through Charles Hacker's Buffalo monitor code, the Miniboard GCC
& ICC libraries, the Handyboard ICC libraries, and a few other sources,
and looked at the schematics and data books a lot. That's the best way to
get intimately familiar with the circuit and the language, but very
time-consuming.
It'd be great if someone were to write up some info for the people just
starting into assembly. It's a difficult thing to take on if you haven't
done it much before. Lot's to learn, lot's to get hung up on and few
people to help. For that matter, once you cut loose from IC and go to any
other compiler, you have to learn the hardware very well in order to make
anything run on it. No safety net.
Regarding Chuck's libraries: I'll be looking at them again to see what
else I can port over (Steal... No, I guess it's called code re-use these
days) to the GCC library. The LCD code was just the first thing I needed.
The circular queue and detach-LCD-yet-still-run-code are nice features and
I made sure to keep them. Same for multiple display formats. Never know
when I might get a 20x4 or 40x2 display cheap somewhere. If I do, I want
to be able to use it.
Curt Mills, WE7U hacker.NO_*SPAM@tc.fluke.com
Senior Methods Engineer/SysAdmin
"Lotto: A tax on people who are bad at math." -- unknown
"Windows: Microsoft's tax on computer illiterates." -- WE7U
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Message is in Reply To:
 | | Re: GCC 2.8.1 for HC11
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| I've taken a look at Chuck's LCD code, and I agree that it's the best I've come across. I spent last weekend studying how to program the HB in assembly. There is a woeful lack of documentation for it. There is plenty of docs on programming in IC, (...) (25 years ago, 8-Apr-99, to lugnet.robotics.handyboard)
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