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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_Abs_F16<br />

}<br />

// output should be FRAC16(0.25)<br />

f16Out = MLIB_Abs_F16(f16In);<br />

// output should be FRAC16(0.25)<br />

f16Out = MLIB_Abs (f16In, Define F16);<br />

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

// Available only if 16-bit fractional implementation selected<br />

// as default<br />

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

// output should be FRAC16(0.25)<br />

f16Out = MLIB_Abs (f16In);<br />

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

Equation MLIB_Abs_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 />

4.116.7 Re-entrancy<br />

The function is re-entrant.<br />

4.116.8 Code Example<br />

#include "mlib.h"<br />

tFrac16 f16In;<br />

tFrac16 f16Out;<br />

void main(void)<br />

{<br />

// input value = -0.25<br />

f16In = FRAC16 (-0.25);<br />

// output should be FRAC16(0.25)<br />

f16Out = MLIB_Abs_F16(f16In);<br />

// output should be FRAC16(0.25)<br />

f16Out = MLIB_Abs (f16In, Define F16);<br />

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

// Available only if 16-bit fractional implementation selected<br />

// as default<br />

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

546 Freescale Semiconductor, Inc.

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