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TMS320F28335: _IQsin() function not working even including IQMathLib.h

Yaki Nachajon
Prodigy 40 points
Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE

We are trying to use _IQsin()  from the IQMathLib.h and the compiler doesn't find its definition, niether us can find any entry of _IQsin() on any file.

Does anyone has  IQsin() working on the same device than us?

The code we are trying to implement it  on an S-function level 2.

Thanks in advance.

  • 0
    TI__Mastermind 24970 points

    Yaki,

    Can you paste the error you are getting?

    1. In IQMathLib.h, is MATH_TYPE defined to IQ_MATH or FLOAT_MATH?

    2. Does your project include IQMath_fpu32.lib?

    3. Please refer to the IQMath example 28335_IQSampleC for the F2833x present in C2000Ware at:

    C2000Ware_4_03_00_00\libraries\math\IQmath\c28\examples\C\2833x

    It uses the _IQsin() (Lines 122 and 123 of IQSample.c)

    Thanks,

    Sira

  • 0 in reply to Sira Rao80
    Prodigy 40 points

    We are trying to use the IQMathLib.h   with IQ numbers to take advantages from the IQ math. In so, we are trying to use that define (_IQsin() ), nevertheless is defined as an external define on the IQMathLib.h , and the compiler doesn't find it. 

    The error messagge is: 

    C:\Users\Yaki\AppData\Local\Temp\mex_46636000454989_2328\pll_1ph_SOGI_c2000_wrapper.obj:pll_1ph_SOGI_c2000_wrapper.c:(.text+0x37f): undefined reference to `_IQ32sin' C:\Users\Yaki\AppData\Local\Temp\mex_46636000454989_2328\pll_1ph_SOGI_c2000_wrapper.obj:pll_1ph_SOGI_c2000_wrapper.c:(.text+0x38a): undefined reference to `_IQ32cos' collect2.exe: error: ld returned 1 exit status

    Thanks!
  • 0 in reply to Sira Rao80
    Prodigy 40 points

    We are trying to use the IQMathLib.h   with IQ numbers to take advantages from the IQ math. In so, we are trying to use that define (_IQsin() ), nevertheless is defined as an external define on the IQMathLib.h , and the compiler doesn't find it. 

    The error messagge is: 

    C:\Users\Yaki\AppData\Local\Temp\mex_46636000454989_2328\pll_1ph_SOGI_c2000_wrapper.obj:pll_1ph_SOGI_c2000_wrapper.c:(.text+0x37f): undefined reference to `_IQ32sin' C:\Users\Yaki\AppData\Local\Temp\mex_46636000454989_2328\pll_1ph_SOGI_c2000_wrapper.obj:pll_1ph_SOGI_c2000_wrapper.c:(.text+0x38a): undefined reference to `_IQ32cos' collect2.exe: error: ld returned 1 exit status

    Thanks!
  • 0 in reply to Yaki Nachajon
    TI__Mastermind 24970 points

    Does the above pll_1ph_SOGI_c2000_wrapper.obj:pll_1ph_SOGI_c2000_wrapper.c file include IQMathlib.h?

    Please answer my other questions as well.

    Thanks,

    Sira