Embedded Software and Motor Control Libraries for PXR40xx

Function GMCLIB_SvmStd_F32
Equation GMCLIB_ParkInv_Eq2
Note
The inputs and the outputs are in single precision floating point
data format.
4.111.5 Re-entrancy
The function is re-entrant.
4.111.6 Code Example
#include "gmclib.h"
SWLIBS_2Syst_FLT trfltAngle;
SWLIBS_2Syst_FLT trfltDq;
SWLIBS_2Syst_FLT trfltAlBe;
void main(void)
{
// input angle sin(60) = 0.866025403
// input angle cos(60) = 0.5
trfltAngle.fltArg1 = 0.866025403;
trfltAngle.fltArg2 = 0.5;
}
// input d = 0.123
// input q = 0.654
trfltDq.fltArg1 = 0.123;
trfltDq.fltArg2 = 0.654;
// output should be:
// trfltAlBe.fltArg1 ~ alpha = -0.495119387
// trfltAlBe.fltArg2 ~ beta = 0.433521139
GMCLIB_ParkInv_FLT (&trfltAlBe,&trfltAngle,&trfltDq);
// output should be:
// trfltAlBe.fltArg1 ~ alpha = -0.495119387
// trfltAlBe.fltArg2 ~ beta = 0.433521139
GMCLIB_ParkInv (&trfltAlBe,&trfltAngle,&trfltDq,Define FLT);
// ##############################################################
// Available only if single precision floating point
// implementation selected as default
// ##############################################################
// output should be:
// trfltAlBe.fltArg1 ~ alpha = -0.495119387
// trfltAlBe.fltArg2 ~ beta = 0.433521139
GMCLIB_ParkInv (&trfltAlBe,&trfltAngle,&trfltDq);
Embedded Software and Motor Control Libraries for PXR40xx, Rev. 1.0
498 Freescale Semiconductor, Inc.