beremiz

use CLOCK_MONOTONIC instead of CLOCK_REALTIME for timer setup

2018-06-01, Andrey Skvortsov
d1536c271866
use CLOCK_MONOTONIC instead of CLOCK_REALTIME for timer setup

CLOCK_REALTIME is a wall clock, that could change back and forth (user
changes system time, winter/summer time, NTP corrections and so on).
For real-time application CLOCK_MONOTONIC should be used, it doesn't
have such jumps.
Beremiz installation
====================
Windows
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Download installer, install.
Linux
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Pre-requisites::
# Ubuntu/Debian :
sudo apt-get install python-wxgtk2.8 pyro mercurial
sudo apt-get install build-essential bison flex python-numpy python-nevow
Prepare::
mkdir ~/Beremiz
cd ~/Beremiz
Get Source Code::
cd ~/Beremiz
hg clone http://dev.automforge.net/beremiz
hg clone http://dev.automforge.net/plcopeneditor
hg clone http://dev.automforge.net/matiec
Build MatIEC compiler::
cd ~/Beremiz/matiec
./configure
make
Build CanFestival (optional)::
# Only needed for CANopen support. Please read CanFestival
# manual to choose CAN interface other than 'virtual'::
cd ~/Beremiz
hg clone http://dev.automforge.net/CanFestival-3
cd ~/Beremiz/CanFestival-3
./configure --can=virtual
make
Launch Beremiz::
cd ~/Beremiz/beremiz
python Beremiz.py