Altera Phase-Locked Loop Reconfiguration IP Core User Manual

Page 14

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Page 14

Design Example

Phase-Locked Loop Reconfiguration (ALTPLL_RECONFIG) Megafunction

February 2012

Altera Corporation

6. Launch the ModelSim-Altera software.

7. On the File menu, click Change Directory.

8. Select the folder in which you unzipped the files.

9. Click OK.

10. On the Tools menu, click Execute Macro.

11. Select the altpll_reconfig_ex1_msim.do file and click Open. This is a script file for

ModelSim-Altera software to automate all the necessary settings for the
simulation.

12. Verify the results shown in the Wave window.

You can rearrange, remove, and add signals, and change the radix by modifying the
script altpll_reconfig_ex1_msim.do.

Figure 10

and

Figure 11

show the expected simulation results in the ModelSim-Altera

software.

Figure 11

shows the change in

c0

frequency starting from 12.75 ms.

Figure 10. Simulation Results in the ModelSim-Altera Software (8.9 to 9.5 ms)

Figure 11. Simulation Results in the ModelSim-Altera Software (9.5 to 13.5 ms)

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