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  VS Arduino › Visual Micro › General Board › ld.exe:Disabling relaxation: it will not work with multiple definiti
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Hot Topic (More than 8 Replies) ld.exe:Disabling relaxation: it will not work with multiple definiti (Read 21209 times)
Kucky
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ld.exe:Disabling relaxation: it will not work with multiple definiti
Oct 2nd, 2014 at 9:26am
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Hello,
I use the Lib "MPU6050" in a project. Everything works fine. 
But the MPU setup runs in the main (ino) file. The MPU data 
read from the main loop. (See MPU6050 example). 
I want the MPU6050-Lib in a separate project class 
to use.
Looks like this:
void IMUClass::init()   (from main setup)
{
    Serial.println(F("Initializing I2C devices..."));
    mpu.initialize();
etc.
}

void IMUClass::readMPU()(from main loop)
{
    mpuInterrupt = false;
    mpuIntStatus = mpu.getIntStatus();
    fifoCount = mpu.getFIFOCount();
etc.
}
If I all includes (MPU6050_9Axis_MotionApps41.h …), declarations and initializations in my class 
have defined, comes this message.
Compiling 'MPU9150_Test' for 'Arduino Mega 2560 or Mega ADK'
MPU9159Class.cpp.o:In function `MPU6050::dmpGetAccel(long*, unsigned 
char const*)'
MPU6050_9Axis_MotionApps41.h:dmpGetAccel(long*, unsigned char const*)'
MPU9150_Test.cpp.o:\MPU6050_9Axis_MotionApps41.h:636: first defined here
ld.exe:Disabling relaxation: it will not work with multiple definitions

I understand what the compiler says, but how do I disable the error?

The Libs
#include "MPU6050_9Axis_MotionApps41.h"
#include "helper_3dmath.h"
#include "I2Cdev.h"
located in the project directory. I work with VS + Visual Micro and Arduino IDE.

I'm really desperate. Cry
Regards
Willi
  
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Tim@Visual Micro
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #1 - Oct 2nd, 2014 at 12:11pm
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Hi Kucky

Does it work in the Arduino IDE?

thanks
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #2 - Oct 2nd, 2014 at 12:19pm
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Hey Tim,
Thanks for the quick response.
I have not tried  Undecided. I test today. Can it be?

Willi
  
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #3 - Oct 2nd, 2014 at 12:20pm
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The same code should fail in the Arduino Ide. When you have confidence of the compatibility between arduino and visual micro projects you can ask the same question in the arduino.cc/forum which is the best place for help with your code.

thanks
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #4 - Oct 2nd, 2014 at 12:23pm
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I did that of course. But there I got no answer. See you later.
Willi
  
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #5 - Oct 2nd, 2014 at 12:29pm
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Your .he file needs to be surrounded with an 

#ifndef MYCLASS
#define MYCLASS

try right clicking the project in solution explorer then selecting the visual micro add new "cpp code" option. When prompted give the new class a name of "MyExampleClass". then look at the cpp and .h file that are created for you. Some of the syntax won't be required but the framework for creating a class should be laid out clearly in the new files.
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #6 - Oct 2nd, 2014 at 12:50pm
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Thank you for your interest. I think I did it correctly. Can I attach my solution here?
Willi
  
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #7 - Oct 2nd, 2014 at 1:54pm
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Yes
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #8 - Oct 2nd, 2014 at 7:05pm
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Sorry, I can not find the fileattach-button. Embarrassed


  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #9 - Oct 2nd, 2014 at 7:24pm
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*.ino
Code (C++)
Select All
#include <Wire.h>
#include "I2Cdev.h"
#include "MPU6050_9Axis_MotionApps41.h"
#include "MPU9150.h"


void setup()
{
  Serial.begin(38400);
  MPU9150.init();
}

void loop()
{
  MPU9150.readIMU();
}


MPU9150Class *.cpp
Code (C++)
Select All
#include "MPU9150.h"

// Declare device MPU6050 class
MPU6050 mpu;


uint16_t count = 0;  // used to control display output rate
//...


void MPU9150Class::init()
{
 // setup the IMU here
}

void MPU9150Class::readIMU() {
//read somthing here

}

void MPU9150Class::MadgwickQuaternionUpdate(float ax, float ay, float az, float gx, float gy, float gz, float mx, float my, float mz)
{
 // calculating something
}
MPU9150Class MPU9150;


MPU9150Class *.h
Code (C++)
Select All
// MPU9150.h

#ifndef _MPU9150_h
#define _MPU9150_h

#if defined(ARDUINO) && ARDUINO >= 100
	#include "Arduino.h"
#else
	#include "WProgram.h"
#endif

#include <Wire.h>
#include "I2Cdev.h"
#include "MPU6050_9Axis_MotionApps41.h"


class MPU9150Class
{
 protected:

 public:

	int16_t a1, a2, a3, g1, g2, g3, m1, m2, m3;     // raw data arrays reading
	//...

	void init();
	void readIMU();
	void MadgwickQuaternionUpdate(float, float, float, float, float, float, float, float, float);
};

extern MPU9150Class MPU9150;

#endif

In Project folder:
#include "I2Cdev.h"
#include "MPU6050_9Axis_MotionApps41.h"
including *.cpp files

#include "MPU9150.h"
#include "MPU9150.cpp"


Error message:
Compiling 'MPU9150_test2' for 'Arduino Mega 2560 or Mega ADK'
MPU9150_test2.cpp.o:In function `MPU6050::dmpGetAccel(long*, unsigned char const*)'
MPU6050_9Axis_MotionApps41.h:dmpGetAccel(long*, unsigned char const*)'
MPU9150.cpp.o:\MPU6050_9Axis_MotionApps41.h:636: first defined here
ld.exe:Disabling relaxation: it will not work with multiple definitions

Can you see anything?

Willi


  
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #10 - Oct 3rd, 2014 at 4:41pm
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Sorry about the missing attachments button. Please click "choose file" in a new post below, this will now allow attachments.

Thanks
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #11 - Oct 3rd, 2014 at 7:33pm
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Hey,
thanks.....
Here my code. But without solution, right?

Willi
  
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #12 - Oct 3rd, 2014 at 9:13pm
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Hi,

The MPU6050_9Axis_MotionApps41.h probably worked okay when it was a library but now you have copied it locally you should the easiest thing is to split MPU6050_9Axis_MotionApps41.h into MPU6050.h and MPU6050.cpp

The MPU6050_9Axis_MotionApps41.h contains cpp definitions which are declared in MPU6050.h
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #13 - Oct 6th, 2014 at 7:57am
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Hello,
sorry, I was not home for the weekend. Thanks for your respond.
That's exactly the problem. The example program so that operates without problems. I want to build a "sensor class", for multiple sensors, including also the MPU9150.
I wrote to the author of the library. Still no response. I think the problem is the library, and not in VM.
I'll try to extract the relevant code from the library.
Gruß
Willi
  
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Kucky
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Re: ld.exe:Disabling relaxation: it will not work with multiple definiti
Reply #14 - Oct 17th, 2014 at 7:34am
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Hello,
The problem is solved. It was at the Library. Now i use another Library, and it works fine Cheesy.
Thanks for support.
Willi
  
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