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Embedded Software and Motor Control Libraries for PXR40xx

Embedded Software and Motor Control Libraries for PXR40xx

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}<br />

// output should be 0x10000000 = FRAC32(0.125)<br />

f32Out = MLIB_Mul (f16In1, f16In2, F32F16F16);<br />

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

Overflow is not detected.<br />

4.150.7 Re-entrancy<br />

The function is re-entrant.<br />

4.150.8 Code Example<br />

#include "mlib.h"<br />

tFrac32 f16In1;<br />

tFrac32 f16In2;<br />

tFrac32 f32Out;<br />

Equation MLIB_Mul_Eq1<br />

void main(void)<br />

{<br />

// first input = 0.5<br />

f16In1 = FRAC16 (0.5);<br />

}<br />

// second input = 0.25<br />

f16In2 = FRAC16 (0.25);<br />

Note<br />

// output should be 0x10000000 = FRAC32(0.125)<br />

f32Out = MLIB_Mul_F32F16F16(f16In1, f16In2);<br />

// output should be 0x10000000 = FRAC32(0.125)<br />

f32Out = MLIB_Mul (f16In1, f16In2, F32F16F16);<br />

4.151 Function MLIB_Mul_F16<br />

This function multiplies two input parameters.<br />

4.151.1 Declaration<br />

tFrac16 MLIB_Mul_F16(register tFrac16 f16In1, register tFrac16 f16In2);<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 />

Chapter 4 API References<br />

Freescale Semiconductor, Inc. 617

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