MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Guide de l'utilisateur télécharger pdf (Page 92)

3 Working with Real-Time Workshop

3-36

sin(example_P.SineWave_Freq * example_M->Timing.t[0] +

example_P.SineWave_Phase) + example_P.SineWave_Bias;

rtb_gain_out = rtb_sin_out * example_P.Gain_Gain;

example_Y.Out1 = rtb_gain_out;

}

This code is more efficient in terms of memory usage. The efficiency

improvement gained by enabling

Enable local block outputs and Reuse

block outputs

would be more significant in a large model with many signals.

A Further Optimization: Expression Folding

As a final optimization, you turn on expression folding, a code optimization

technique that minimizes the computation of intermediate results and the

use of temporary buffers or variables.

Enable expression folding and regenerate the code as follows:

1 On the Optimization pane of the Configuration Parameters dialog,

select the

Eliminate superfluous temporary variables (Expression

folding)

option.

2 Make sure that Signal storage reuse is still selected, as shown above.

3 Click Apply.

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MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Guide de l'utilisateur Page 92