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Verilog XL Tutorial By Greg Edmiston Scott McClure August 2004.

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Presentation on theme: "Verilog XL Tutorial By Greg Edmiston Scott McClure August 2004."— Presentation transcript:

1 Verilog XL Tutorial By Greg Edmiston Scott McClure August 2004

2 Tutorial Disclaimer This tutorial includes one way of simulating in Verilog XL. This is not necessarily the best way of simulating, depending on your requirements. This tutorial is a simple step-through designed to familiarize the user with Verilog XL, and thus is basic in nature. More advance simulations are not found in this tutorial.

3 Create Verilog File Create a text file with the text shown here This code represents a basic circuit with delay and test stimulus Save as “example.v” Verilog code files often have a “.v” file extension

4 Enter ICFB Type “who am i”  Gives xhost address setenv DISPLAY {xhost} Type “icfb &” to start Cadence

5 Import Verilog File in ICFB Import the “example.v” Verilog file by choosing File >> Import >> Verilog in ICFB CIW

6 Importing Verilog File “Verilog In” window pops up Set Target Library Name to “new” Highlight “example.v” in file selection box at the top of the window Press the Add button on the “Verilog Files to Import” line Click OK at the top of the “Verilog In” window

7 Verify File Import Open up the Library Manger from the CIW and inspect to ensure the “new” library includes a cell named “circuit_with_delay”

8 Verify File Import Open the Schematic view of the “circuit_with_ delay” from the Library Manager and verify that it resembles the screenshot to the left

9 Running Verilog XL Close all windows except a terminal From your home directory type “verilog +gui example.v” Verilog should open with your example loaded Note: “example.v” has to be saved in your home directory for this command to function

10 Simulating with Verilog XL Verilog should open the SimVision Design Browser and Console The stimcrct module should be displayed under the simulator icon

11 Simulating with Verilog XL Click on the stimcrct icon The circuit inputs and outputs should now be visible under Signal/Variable

12 Simulating with Verilog With the stimcrct highlighted choose Select>>Signals

13 Simulating with Verilog XL Now that the signals are highlighted, send them to the logic display by clicking on the indicated button Click Here

14 Simulating with Verilog XL Click the Play button to run the simulation Run Button

15 Simulating with Verilog XL Since the simulation has no initial stop point the output will appear similar to the window to the left

16 Simulating with Verilog XL To rerun the simulation it must first be reset Reset the simulation by choosing “Reinvoke Simulator” from the simulation menu

17 Simulation with Verilog XL Run the simulation by pressing the Run button Run Button

18 Simulation with Verilog XL Simulation output should look like this

19 Conclusion This concludes the Verilog XL Tutorial This tutorial was derived from the SMU Cadence Verilog XL Tutorial log_intro.pdf log_intro.pdf


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