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| 22 | <h1 class="LessonTitle">Simulating the Design</h1> |
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| 24 | <div class="summary"> |
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| 25 | <p>In this section the design is simulated to ensure that is performs as expected.</p> |
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| 32 | </div> <p>Now that the design is complete it needs to be simulated. As System Generator is an add-on to Simulink the same simulation environment can be used.</p> |
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| 39 | </div> <p>Start off by changing the initial value of the <strong>phaseInc </strong>register to 2^20.</p> |
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| 46 | </div> <p>Change the simlation time to 2^12. This will ensure that we will step through the entire sine and cosine ROM one step at a time. Press the <strong>play</strong> button to begin the simulation.</p> |
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| 53 | </div> <p>Open the scope once completed and hit the <strong>autoscale</strong> (binoculars) button. This scales the output data to fit the screen extents.</p> |
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| 60 | </div> <p>Smooth sinusoids that cover -0.5 to 0.5 and take 2^12 samples should be visible on the screen. At this point the design has been validated. However, as a good rule of thumb, it is better to simulate larger designs in shorter steps and intermediate points rather than trying to debug the entire model together.</p> |
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| 62 | |
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| 63 | <p>The final step is to create the HDL corresponding to this model.</p> |
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| 71 | <td class="lessonNav_Left"><a href="Creating_the_Model.html"><< Creating the Model</a></td> |
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| 72 | <td class="lessonNav_TOC"><a href="../Custom_Peripherals.html">Top</a></td> |
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| 73 | <td class="lessonNav_Right"><a href="Exporting_as_Peripheral_Core.html">Exporting as Peripheral Core >></a> </td> |
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