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[on:]

Hi all,

I have found similar questions to this, and I understand (sort of) what the solution is, but was hoping someone might know a bit more about Arduino libraries to help me out.

I am trying to use both the Servo and Tone libraries in a project.  They are conflicting, in particular through the use of vector 11.  I think that I have to either change, or rename, this 'vector' but don't know how to identify a vector within the library '.h' files.

Any help to point me in the right direction would be greatly appreciated.

Thanks!

[Reply #1 on:]

I just searched for vector in the libraries and it is not there.  Do you mind posting the error you are getting?  Maybe it will help clarify things.

[Reply #2 on:]

Thanks for the reply,

I'm at work so I don't have the exact error, but it is almost identical to the following:

Code:

core.a(Tone.cpp.o): In function `__vector_7':

C:\Program Files (x86)\arduino-1.0.1\hardware\arduino\cores\arduino/Tone.cpp:523: multiple definition of `__vector_7'

NewPing\NewPing.cpp.o:C:\Program Files (x86)\arduino-1.0.1\libraries\NewPing/NewPing.cpp:214: first defined here

I also tried searching the libraries for "vector" with no success, my guess is that it is referring to a variable being used within the library (?).

Thanks again.

[Reply #3 on:]

I grepped (searched) every single file in the Arduino 1.0.1 software download and the only results were .o files that contained __vector_7.

Then I checked out line 523 in Tone.cpp and found the definition for an ISR called ISR(TIMER2_COMPA_vect). 

grepping Tone.cpp again I found

Code:

#define TIMER2_COMPA_vect TIMER2_COMP_vect

grepping all files for TIMER2_COMP_vect resulted in 23 files with names like iom???.h that contained

Code:

#define TIMER2_COMP_vect    _VECTOR(#)

where # = 3, 4, 9, and 10.  But there were no 7's.

Switching tactics I googled Tone.cpp:523: multiple definition of `__vector_7'

This post in the forums might contain your solution if you are not using interrupts with the Ping sensor. http://arduino.cc/forum/index.php/topic,106043.msg960630.html#msg960630

[Reply #4 on:]

it's happen the same things to me ...

there was two libraries in conflict because was used the same pin ...

maybe you can try to change the pin ...

gnux

[Reply #5 on:]

Thanks again,

I should have been more clear.  The error I posted there was *almost* what I was experiencing.  The following is the actual error (the only difference is the vector and libraries involved):

Code:

/tmp/build5446.tmp/Tone/Tone.cpp.o: In function `__vector_11':

/Users/oli/Documents/Arduino/libraries/Tone/Tone.cpp:438: multiple definition of `__vector_11'

/tmp/build5446.tmp/Servo/Servo.cpp.o:/Applications/Arduino.app/Contents/Resources/Java/libraries/Servo/Servo.cpp:103: first defined here

I have googled some more and found that the Tone and Servo libraries are using the same timer on the Uno, I think these are necessary for both modules, and don't know if I can change them.

Any thoughts?

[Reply #6 on:]

Yes, they use the same Timer.

You might want to look at the new ToneAC library here on the forum - http://arduino.cc/forum/index.php/topic,142097.0.html

It seems to use Timer 1, rather than Timer 2, this avoiding the conflict with the. Servo library that the original Tone library has.