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.
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<xhtml:p><![CDATA[This example shows how you can customize build process by using 'make'.
Sometimes special steps need to be done to build entire project.
But it's not necessary to create another target in Beremiz every time you need to customize something in build process. Just use for that 'Generic' target and describe all necessary steps in Makefile.
For example, you can
- preprocess generated by Beremiz C source files,
- do some fancy source code transformation using any tools you want,
- use any compiler you want,
- call static analyzers,
- run integration tests on the project,
- upload source code to external build server,
- upload to the target and compile it there,
- flash/transfer your compiled binary to the target,
and much much more.
]]></xhtml:p>
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