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From: Charmed Snark <snark@cogeco.ca>
Newsgroups: comp.lang.ada
Subject: Re: USB Boarduino on AVR-Ada Tutorial
Date: Thu, 2 Sep 2010 16:11:40 +0000 (UTC)
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b.robinson.jp@gmail.com expounded in news:3be87447-5b06-4fcc-a0ed-
7037659b81a5@m1g2000yqo.googlegroups.com:

> Thanks for the suggestion.
> 
> I do have the right chip number (I verified it on the surface of the
> IC too), and I do have the right IO port and pin number (verified with
> the C program).  The C version compiles and runs as expected, so I
> think I'm going to have to study the bootstrapping process and get my
> hands wet.

Another thing you can try is to code your own delay
loop. Just do something in a loop that doesn't get
optimized away (sometimes tricky).  Then if it
works with your delay routine, you know something is
up with the called on.

You might need the help of the:

pragma Volatile(Variable);

in your own delay loop. Otherwise, if you compile with -Os,
you should be ok.

Warren