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Porting library error when verifying
August 30, 2016
11:42 am
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Urabus
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August 30, 2016
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Hi All,

I'm trying to port a library that init and read a IMU board. The library works well on Arduino IDE (check my arduino test example).

But when I try to verify it in Arduino compiler there's error. I uploaded my complete folder containing the two function to port : init and read.

What's wrong with my vilib ?

Thanks

August 31, 2016
6:32 pm
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Steffan
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I get an error due to L3G library missing.  You have not included that as part of the libraries for the addon.  Maybe that is your issue.

September 2, 2016
8:02 pm
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Urabus
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Thanks for the support. No, this is not my error. I installed L3G library and LSM303 library before designing ma IMU lib that's why no pb with it.

Please find in the attached files the missed librairies.

 

Regards.

September 2, 2016
9:04 pm
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Steffan
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You are missing this line in your Translator.  You need to create the IMU object.

IMU exampleIMU;

 

You can do this in your translator by placing it on the last line of the includes like this:

 

includes.pngImage Enlarger

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September 3, 2016
12:29 pm
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Urabus
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August 30, 2016
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Thank you. I will try that next Monday and keep you updated.

Best regards.

September 5, 2016
7:59 am
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Urabus
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August 30, 2016
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Hi,

it doesn't work. If I checked the arduino code example in Arduino IDE and the arduino code given in the compiler, it's exactly the same:

Arduino example in arduino IDE (that compiling):

#include <IMU.h>

IMU exampleIMU;

float roll3;
float pitch3;
float yaw3;
int accx;
int accy;
int accz;

void setup() {
exampleIMU.init();

}
void loop() {
exampleIMU.read(roll3, pitch3, yaw3, accx, accy, accz);

}

Arduino code given in the compiler:

#include "LVArray.h"
#include "A4Lhelper.h"
#include "IMU.h"
#include "Arduino.h"
#include "Wire.h"
#include "L3G.h"
#include "LSM303.h"
IMU exampleIMU;
void setup()
{
signed long accz4_483;
signed long accy4_424;
signed long accx4_365;
float yaw4_306;
float pitch4_254;
float roll4_105;
boolean Const609;
exampleIMU.init();
signed long LoopCounter570 = 0;
boolean LoopEnd609 = false;

do
{

accz4_483 = 0;
accy4_424 = 0;
accx4_365 = 0;
yaw4_306 = 0.000000;
pitch4_254 = 0.000000;
roll4_105 = 0.000000;
Const609 = false;
exampleIMU.read(roll4_105,pitch4_254,yaw4_306,accx4_365,accy4_424,accz4_483);
if(Const609)
{
break;
}

LoopCounter570=LoopCounter570+1;
} while(1);
}

void loop()
{
}

But I get these errors when compiling:

1.0.0.21, Arduino Due (Programming Port)
Chargement de la configuration
Initialisation des paquets...
Préparation des cartes
Vérification...
C:\Users\Admin\AppData\Local\Temp\58e9973bb6e2e908c6c199f5a9d39075.tmp\temp\temp.ino: In function 'void setup()':

temp:32: error: no matching function for call to 'IMU::read(float&, float&, float&, long int&, long int&, long int&)'

exampleIMU.read(roll4_105,pitch4_254,yaw4_306,accx4_365,accy4_424,accz4_483);

^

C:\Users\Admin\AppData\Local\Temp\58e9973bb6e2e908c6c199f5a9d39075.tmp\temp\temp.ino:32:84: note: candidate is:

In file included from C:\Users\Admin\AppData\Local\Temp\58e9973bb6e2e908c6c199f5a9d39075.tmp\temp\temp.ino:3:0:

C:\Users\Admin\Documents\Arduino\libraries\IMU/IMU.h:13:7: note: void IMU::read(float&, float&, float&, int&, int&, int&)

void read(float &roll2, float &pitch2, float &yaw2, int &accx2,int &accy2,int &accz2);

^

C:\Users\Admin\Documents\Arduino\libraries\IMU/IMU.h:13:7: note: no known conversion for argument 4 from 'long int' to 'int&'

exit status 1
no matching function for call to 'IMU::read(float&, float&, float&, long int&, long int&, long int&)'

 

Thank you

September 5, 2016
8:27 am
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Urabus
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August 30, 2016
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It looks like a problem of variables types. It seems there's no pb with float type, but I don't manage to get the same type for integer (int).

If I put all I32 (example VI and read in IMU.vilib) it doesn't work, if i put I16 everywhere it's the same ...

September 7, 2016
8:43 pm
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Steffan
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March 12, 2015
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It is because your library uses the int datatype for these parameters where the Compiler uses short for I16 and long for I32 because int can mean different things on different Arduino platforms.  But you can see the code conversion so you just need to do some C casting in your translator or make modifications to the library if necessary.  This is outside the scope of normal support so you will have to determine the best way to integrate with 3rd party libraries.

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