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Embedded Software and Motor Control Libraries for PXR40xx

Embedded Software and Motor Control Libraries for PXR40xx

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Function MLIB_VMac_FLT<br />

}<br />

fltIn3 = 0.35;<br />

// input4 value = 0.45<br />

fltIn4 = 0.45;<br />

// output should be 0.195<br />

fltOut = MLIB_VMac_FLT(fltIn1, fltIn2, fltIn3, fltIn4);<br />

// output should be 0.195<br />

fltOut = MLIB_VMac (fltIn1, fltIn2, fltIn3, fltIn4, Define FLT);<br />

// ##############################################################<br />

// Available only if single precision floating point<br />

// implementation selected as default<br />

// ##############################################################<br />

// output should be 0.195<br />

fltOut = MLIB_VMac (fltIn1, fltIn2, fltIn3, fltIn4);<br />

The output of the function is defined by the following simple equation:<br />

Equation MLIB_VMac_Eq1<br />

Note<br />

Due to effectivity reason this function is implemented as inline<br />

<strong>and</strong> thus is not ANSI-C compliant.<br />

4.183.7 Re-entrancy<br />

The function is re-entrant.<br />

4.183.8 Code Example<br />

#include "mlib.h"<br />

tFloat fltIn1;<br />

tFloat fltIn2;<br />

tFloat fltIn3;<br />

tFloat fltIn4;<br />

tFloat fltOut;<br />

void main(void)<br />

{<br />

// input1 value = 0.25<br />

fltIn1 = 0.25;<br />

// input2 value = 0.15<br />

fltIn2 = 0.15;<br />

// input3 value = 0.35<br />

fltIn3 = 0.35;<br />

<strong>Embedded</strong> <strong>Software</strong> <strong>and</strong> <strong>Motor</strong> <strong>Control</strong> <strong>Libraries</strong> <strong>for</strong> <strong>PXR40xx</strong>, Rev. 1.0<br />

684 Freescale Semiconductor, Inc.

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