As a followup to Thorsten's suggestion I was fooling around with my Arduino,
making it send a series of fixed lenght float values to FGFS but they got
"corrupted"!?!? How's that?
Ok, to be more precise, Arduino is sending 7 bytes long strings and a constant
int value to FGFS that reads it all using this protocol:
<input>
<line_separator>newline</line_separator>
<var_separator>tab</var_separator>
<chunk>
<name>CommFreqEncoder</name>
<type>float</type>
<node>/instrumentation/comm/frequencies/standby-mhz</node>
</chunk>
<chunk>
<name>arduino_fake_int</name>
<type>int</type>
<node>/sim/arduino_fake_integer</node>
</chunk>
</input>
Every standby-mhz value Arduino is sending has been previously formatted so
that it has at most three decimals, something like that: 139.775 or 129.675.
Problem is FGFS shows /instrumentation/comm/frequencies/standby-mhz as
139.7749939 or 129.6750031. There's something wrong with that and I have no
idea what it is. It looks like FGFS is receiving 139.775 and stores it as
139.7749939 (some float rounding up) ... but why? Suggestions?
I even tryed using the <format>%.3f</format> statement in the CommFreqEncoder
input chunk, but no success there (I guess <format> works only with output
formatting).
I have to say that rarely (but that happens too and I want to mention that) the
standby-mhz is being stored to the correct 3-decimals format.
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