CCS/TMS320F28379D: Sine/Cosine

Tool/software: Code Composer Studio

Hi,
I am using F28379D control card to generate SVPWM for three phase inverter. I am following the control suite's example HVAC_Sensored.

I am unable to deploy sine and cosine functions. Although _IQsinPU and _IQcosPU functions are linked to the IQmathLib.h correctly, but still it won't run. (screenshot attached).
Can you please tell me what am I missing?

over 6 years ago

0 Manish Bhardwaj over 6 years ago

TI__Mastermind 43730 points

For F28379D, you do not need IQmath, we have TMU.

Make sure you enable TMU, by selecting it under processor options under project settings.

Also make sure the compiler is set to 02 or greater

I have asked some of my motor control colleagues to give their recommendation.

0 Ramesh Ramamoorthy over 6 years ago in reply to Manish Bhardwaj

TI__Mastermind 27240 points

You seem to have copy/pasted files from a project using fixed point MCU, in that case, you also need to link IQmath.lib. Refer to the original project for the path and other details.

Alternately, you can copy settings from a floating point project or use the floating point function by declaring the MATH_TYPE as follows:

#define MATH_TYPE FLOAT_MATH

#include "IQmathLib.h"

0 HQ over 6 years ago in reply to Ramesh Ramamoorthy

Intellectual 360 points

Thanks. Changing MATHTYPE to FLOAT MATH worked.

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CCS/TMS320F28379D: Sine/Cosine