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Re: [avr-gcc-list] Re: optimizer removes volatile pin access code. why?

From: Joerg Wunsch
Subject: Re: [avr-gcc-list] Re: optimizer removes volatile pin access code. why?
Date: Wed, 28 Oct 2009 20:42:46 +0100 (MET)

Joerg Desch <address@hidden> wrote:

> Give me some time. I try to put it in a simple snippet. Is it OK to
> attach it as tgz to this mailing list?

Attachments of MIME type application/octet-stream used to be dropped
(although I'm not sure whether this has been turned off now), anything
else should be fine.

For just a simple example, you'd better attach them as text/plain
files (just strip down the Makefile to a few lines as well), that way,
most mailers / news readers will be able to display them inline.

>> So if your oscilloscope is too slow, you might not notice
>> the pin actually becoming high for one clock period.

> Tektroniks TDS784 with 4GS/s ;-)

Unless you accidentally enable something like a low-pass filter in the
trigger system, that should of course work.

cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)

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