Embedded Software and Motor Control Libraries for PXR40xx

Function GFLIB_Sign_F32
4.75.6 Code Example
#include "gflib.h"
tFloat fltIn;
tFloat fltOut;
GFLIB_RAMP_T_FLT flttrMyRamp = GFLIB_RAMP_DEFAULT_FLT;
void main(void)
{
// increment/decrement coefficients
flttrMyRamp.fltRampUp = (tFloat)(0.1);
flttrMyRamp.fltRampDown = (tFloat)(0.03333333);
// input value = 0.5
fltIn = (tFloat)(0.5);
}
// output should be 0.1
fltOut = GFLIB_Ramp_FLT (fltIn, &flttrMyRamp);
// output should be 0.1
flttrMyRamp.fltState = 0;
fltOut = GFLIB_Ramp (fltIn, &flttrMyRamp, Define FLT);
// ##############################################################
// Available only if single precision floating point
// implementation selected as default
// ##############################################################
// output should be 0.1
flttrMyRamp.fltState = 0;
fltOut = GFLIB_Ramp (fltIn, &flttrMyRamp);
4.76 Function GFLIB_Sign_F32
This function returns the signum of input value.
4.76.1 Declaration
tFrac32 GFLIB_Sign_F32(tFrac32 f32In);
4.76.2 Arguments
Table 4-97. GFLIB_Sign_F32 arguments
Type Name Direction Description
tFrac32 f32In input Input argument.
Embedded Software and Motor Control Libraries for PXR40xx, Rev. 1.0
394 Freescale Semiconductor, Inc.