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<div class="moz-cite-prefix">Hi Paul,</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">It seems this is a variant of header
hell that I am stewing in... At the moment the project is not up
on github, as I was under some sort of delusion that this might
eventually have some commercial value. I'm not so sure about
that, but I have put a lot of effort into it so far...</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Arduino, does indeed do some funky
stuff. If I could figure it out, I'd probably just write my own
scripts to have things compile in the order I want. A makefile
isn't hard. I just don't know all the crazy locations where
Arduino stuff is stashed. Suppose I could poke about.<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Thanks for the tip on going through the
#ifndef's. It's got to be in that neighborhood. I put in the
#ifndef stuff to prevent multiple inclusions, which Arduino 1.8.9
IDE does not seem to like, the compiler squawked at me when I
tried to do that. What is puzzling me is that even if I put the
include #include "RunningMedian.h" in the file, I get "nearly" the
same error, if I comment out the include.<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">WITH include:</div>
<div class="moz-cite-prefix">#include "moreutils.h"</div>
<div class="moz-cite-prefix"><b>#include "RunningMedian.h"</b><br>
</div>
<div class="moz-cite-prefix"><tt>home/bruce/Arduino/adcdmafftM4bruce/adcdmafft/adcdmafftm4/moreutils.ino:
In function 'void doMedian(float*, float*, int)':</tt><tt><br>
</tt><tt>moreutils:14:3: error: 'RunningMedian' was not declared
in this scope</tt><tt><br>
</tt><tt> RunningMedian samples = RunningMedian(medianlength);</tt><tt><br>
</tt><tt> ^</tt><tt><br>
</tt><tt>moreutils:14:17: error: expected ';' before 'samples'</tt><tt><br>
</tt><tt> RunningMedian samples = RunningMedian(medianlength);</tt><tt><br>
</tt><tt> ^</tt><tt><br>
</tt><tt>moreutils:16:5: error: 'samples' was not declared in this
scope</tt><tt><br>
</tt><tt> samples.add(abuf[i]);</tt><tt><br>
</tt><tt> ^</tt><tt><br>
</tt><tt>exit status 1</tt><tt><br>
</tt><tt>'RunningMedian' was not declared in this scope</tt></div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">WITHOUT include:</div>
<div class="moz-cite-prefix">#include "moreutils.h"<br>
</div>
<div class="moz-cite-prefix"><tt>/home/bruce/Arduino/adcdmafftM4bruce/adcdmafft/adcdmafftm4/moreutils.ino:
In function 'void doMedian(float*, float*, int)':</tt><tt><br>
</tt><tt>moreutils:14:3: error: 'RunningMedian' was not declared
in this scope</tt><tt><br>
</tt><tt> RunningMedian samples = RunningMedian(medianlength);</tt><tt><br>
</tt><tt> ^</tt><tt><br>
</tt><tt>moreutils:14:17: error: expected ';' before 'samples'</tt><tt><br>
</tt><tt> RunningMedian samples = RunningMedian(medianlength);</tt><tt><br>
</tt><tt> ^</tt><tt><br>
</tt><tt>moreutils:16:5: error: 'samples' was not declared in this
scope</tt><tt><br>
</tt><tt> samples.add(abuf[i]);</tt><tt><br>
</tt><tt> ^</tt><tt><br>
</tt><tt>exit status 1</tt><tt><br>
</tt><tt>'RunningMedian' was not declared in this scope</tt><br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">In both cases, the top of the file
states #include moreutils.h. And inside of moreutils.h there is:<br>
</div>
<div class="moz-cite-prefix">#ifndef RunningMedian_h</div>
<div class="moz-cite-prefix">#define RunningMedian_h</div>
<div class="moz-cite-prefix">#include "RunningMedian.h"</div>
<div class="moz-cite-prefix">...</div>
<div class="moz-cite-prefix">#endif</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">It's got to be simple, it's got to be
simple,... Wish I could see it what it was...<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">I think, I'll come up on Monday. I
haven't been to the Manchester Maker Space before.</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">-Bruce<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 5/3/19 6:50 PM, Paul Beaudet wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAH4HwSzKRfzvXDRzOgVZ16tkYR7Nucu6=pj1V+8QDv_x6qm8+Q@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div dir="ltr">
<div>The compiler is basically telling you the library is not
imported or has yet to be imported for whatever reason.<br>
</div>
<div><br>
</div>
<div>The Arduinoy parts of the compilation process do some
weird things behind the scenes to reorder the code before
compiling so that it actually makes sense. Done with extra
.ino files not named the same as the project and functions
after the main loop in said project_name.ino file. Its
possible for an Arduino developer/tinkerer to declare a
function after the two primary loops that use those exact
functions before actual deceleration because of this
behavior. Which breaks some expectations of hardened
engineers I think. All in the interest of catering to new
people that would probably be frustrated by a strict order
of operation. If this behaviour rearranges library functions
before the "#include <mylibrary.h>", that might give
an unexpected result, but that doesn't seem to be what's
going on here. Under the hood strict order of operations
still exist. Arduino does ultimately use the gcc compiler,
though maybe its configured for that switcharoo magic, I
didn't write the code, I've just fallen into the traps.</div>
<div><br>
</div>
<div>Extra .ino files in the same folder will be arranged
before your main .ino file, but it could be right before
setup. Not sure, its been a while since I've been regularly
working with the Arduino, I could be wrong. The .h file
should be a bit more obvious as to where its included. Bit
more explicit<br>
</div>
<div><br>
</div>
<div>Do you have a github link to your current project state
Bruce? <br>
</div>
<div><br>
</div>
<div>I'm looking back at an older project of mine, it looks
like I was doing something similar in this one <a
href="https://github.com/PaulBeaudet/SimpleBotSocketIo/blob/master/SimpleBotSocketIo.ino"
moz-do-not-send="true">https://github.com/PaulBeaudet/SimpleBotSocketIo/blob/master/SimpleBotSocketIo.ino</a>
I declared a timer library in a .h file then declared and
instance of it in the .ino fille. We demoed that bot at the
mini makerfaire in dover, I'm assuming it compiled and that
should be something that's doable</div>
<div><br>
</div>
<div>I think you may want to inspect your #ifndef statement a
bit more closely to be sure the RunningMedian data type
(library import) is actually being instantiated after that
pre-compilation logic runs its course. Why do you need to
prevent multiple instances from being called? #import should
only call one instance, right? Also, spelling, that's
normally my issue.. haha</div>
<div><br>
</div>
<div>If you are still having trouble after spending more time
with it, feel free to stop by the Manchester Makerspace
Monday during open house (6pm-8pm). I'll likely be in giving
tours, I can take a look with you when tours simmer down.<br>
</div>
<div><br>
</div>
<div>Cheers,</div>
<div>Paul Beaudet<br>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, May 3, 2019 at 4:57 PM
Bruce Labitt <<a href="mailto:bruce.labitt@myfairpoint.net"
moz-do-not-send="true">bruce.labitt@myfairpoint.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Can
I ask an Arduino/C/C++ question here? If not, where is a
decent <br>
place to ask? Full code is just under 50KB (unzipped).<br>
<br>
It's a "Variable was not declared in this scope" problem.
Basically, I'm <br>
in over my head at the moment. I'm not a good structured
programmer - <br>
so let's get that out of the way. I'm a hack, in the worst
sense...<br>
<br>
Everything was working... when I had a huge file. I then
decided, wow, <br>
this is a mess, lets break this up a bit into modules, so that
it is <br>
more supportable and debug-able (for myself). If anyone is
remotely <br>
interested, it is a homebrew radar based chronograph. I've
got most of <br>
the pieces working (or at least it worked before I recently
busted <br>
things). The 100KHz sampling using DMA, the ping pong
floating point 1K <br>
FFT's running in 'real' time, and some display stuff.
Separately, I <br>
have a live update of a tft screen (320x240) running with the
FFT <br>
output. I'm running on an ARM M4F processor, but using the
Arduino <br>
IDE. The Arduino way of doing things is a little confusing to
me, to be <br>
honest. It hides a lot of things.<br>
<br>
Ok, here is the error.<br>
<br>
/home/bruce/Arduino/adcdmafftM4bruce/adcdmafft/adcdmafftm4/moreutils.ino:
<br>
In function 'void doMedian(float*, float*, int)':<br>
moreutils:14:3: error: 'RunningMedian' was not declared in
this scope<br>
RunningMedian samples = RunningMedian(medianlength);<br>
^<br>
moreutils:14:17: error: expected ';' before 'samples'<br>
RunningMedian samples = RunningMedian(medianlength);<br>
^<br>
moreutils:16:5: error: 'samples' was not declared in this
scope<br>
samples.add(abuf[i]);<br>
^<br>
exit status 1<br>
'RunningMedian' was not declared in this scope<br>
<br>
The code in moreutils.ino is:<br>
<br>
// additional processing<br>
#include "moreutils.h"<br>
<br>
void doMedian( float abuf[], float runmed[], int medianlength)
{ // <br>
needs work!<br>
<br>
RunningMedian samples = RunningMedian(medianlength);<br>
for (int i=0; i< FFT_SIZE/2; i++) {<br>
samples.add(abuf[i]);<br>
if (i>medianlength-1) {<br>
runmed[i-medianlength] = samples.getMedian();<br>
// don't put value until the circ buffer is filled<br>
}<br>
}<br>
for (int i= (FFT_SIZE/2 -medianlength-7); i<
(FFT_SIZE/2); i++) {<br>
runmed[i] = runmed[FFT_SIZE/4]; // hack for now<br>
// at tail end of median there are some bizarre numbers.
root <br>
cause has not been<br>
// determined, so we just fill the last samples from
'something close'<br>
}<br>
}<br>
<br>
Inside of moreutils.h, is #include RunningMedian.h with an <br>
#ifndef/#define/#include statement, to prevent multiple
includes of the <br>
same file (RunningMedian.h).<br>
<br>
I'm really kind of confused as to where I need to do the
declaration.<br>
<br>
In <br>
<a
href="https://github.com/RobTillaart/Arduino/blob/master/libraries/RunningMedian/examples/RunningMedian/RunningMedian.ino"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://github.com/RobTillaart/Arduino/blob/master/libraries/RunningMedian/examples/RunningMedian/RunningMedian.ino</a>
<br>
the declaration is simply done prior to setup. Snippet below<br>
<br>
#include <RunningMedian.h><br>
<br>
RunningMedian samples = RunningMedian(5);<br>
<br>
RunningMedian samples2 = RunningMedian(9);<br>
<br>
void setup() {<br>
<br>
...<br>
<br>
}<br>
<br>
void loop() {<br>
<br>
use samples here...<br>
<br>
}<br>
<br>
I'm sure this is trivial for most of you - but I'm both
perplexed and <br>
stuck. If one of you kind souls could help me, I'd greatly
appreciate <br>
it. I'd even travel to see someone if that would work out
better.<br>
<br>
TIA, Bruce<br>
<br>
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</blockquote>
</div>
</blockquote>
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