IQMath Problem

Jigar Patel93027

Hello,

I am trying to use IQmath for F28335. I had written my code in floating point and worked very well. But due to some timing issue, I am converting it to IQmath. I am using CCS3.3 compiler.When I am trying to compile it gives me following errors

undefined first referenced symbol in file --------- ---------------- _IQ15 C:\\tidcs\\DSP2833x\\v131\\..\\Debug\\ReGen_5Khz_150HP_IQ.obj

__IQint_IQmpy C:\\tidcs\\DSP2833x\\v131\\..\\Debug\\ReGen_5Khz_150HP_IQ.obj

__IQlog C:\\tidcs\\DSP2833x\\v131\\..\\Debug\\ReGen_5Khz_150HP_IQ.obj

error: unresolved symbols remain error: errors encountered during linking; "./Debug/01_Prj_Build_28335.out" not built

I have attached following library to my workspace

1> IQMath.lib

2> IQMathLog.lib

3> rts2800_ml.lib

If i remove rts file, i get many other unknown symbol.

I have disable FPU32 from build option.

Can anyone help(Advise) to resolve this error?

What to do for "POW" function? do we have any IQpow?

over 12 years ago

0 Lori Heustess over 12 years ago

TI__Guru* 93800 points

Sounds like you may have not #include "IQmathLib.h" in your source code and/or the IQMath.lib is for some reason not part of the project.

Jigar Patel93027 said:
__IQint_IQmpy C:\\tidcs\\DSP2833x\\v131\\..\\Debug\\ReGen_5Khz_150HP_IQ.obj

This one looks like a typo. There is no such thing as a IQint_IQmpy function.

0 Jigar Patel93027 over 12 years ago in reply to Lori Heustess

Intellectual 750 points

HEllo Lori,

I have #include "IQmathLib.h" to my project.

And _IQint and _IQmpy are different. It still gives me this error.

Please advise what else it could be.

Thanks

Jigar

0 Gautam Iyer over 12 years ago in reply to Jigar Patel93027

Guru 192875 points

Jigar, please check this doc for all the initializations/steps required for setting up IQMath lib:

8030.IQmath_project_setup.pdf

Regards,

Gautam

0 Jigar Patel93027 over 12 years ago in reply to Gautam Iyer

Intellectual 750 points

Thanks everyone.

Now i can compile without error. But now when i try to run my code, It says code composer Could not locate:

IQNdiv.asm

File not found error.

I have attached all of the required files.

Please let me know what else.

Thanks

Jigar

0 Lori Heustess over 12 years ago in reply to Jigar Patel93027

TI__Guru* 93800 points

Jigar Patel93027 said:

Now i can compile without error. But now when i try to run my code, It says code composer Could not locate:

IQNdiv.asm

File not found error.

I have attached all of the required files.

Please let me know what else.

Jigar,

This is expected. Code Composer is trying to enable source code debug. Since you do not have the source code to the library (we do not supply this) code composer will not be able to bring it up to do source code debug. The application will still work.

Regards

Lori

0 Gautam Iyer over 12 years ago in reply to Jigar Patel93027

Guru 192875 points

As Lori mentions, you can just ignore the error.

Goodluck & Regards,

Gautam

C2000™︎ microcontrollers

C2000 microcontrollers forum

IQMath Problem