IQMath acos function 2

Amit Aryal

Intellectual 630 points

I have included #include "IQmathLib.h" in main header and declared within main function the following:

_iq29 in1, out1;

in1 = _IQ29(0.70710678L);

out1 = _IQ29acos(in1);

However I get following error:

undefined first referenced
symbol in file

__IQ29acos ./Fxample_2802xAdcSoc.obj

error: unresolved symbols remain

>> Compilation failure
warning: entry-point symbol other than "_c_int00" specified: "code_start"

The global is defined in following format in my main file

#define GLOBAL_Q 29
#include "IQmathLib.h"

over 9 years ago

0 Disona over 9 years ago

Genius 3050 points

Hello.

Have included proper library into your project? (IQmath.lib or IQmat_fpu32.lib)?

What MCU do you use? F28027?

0 Amit Aryal over 9 years ago in reply to Disona

Intellectual 630 points

I use TMS320fF28027 and I included IQmath.lib

0 Disona over 9 years ago in reply to Amit Aryal

Genius 3050 points

Hm. I've just looked through my IQmath.h and didn't find _IQacos at all. But i've found out, that the library is very old (v1.4b, 2002 year). And in later libraries there is acos., beginning from v1.4e. Take a look at your header file. And don't forget, the "IQmath.lib" must be the same version, as header file.

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IQMath acos function 2