Virtuoso AMS Environment User Guide
Quick-Start Tutorial
This script first removes any existing design compilation.(pak) files and then compiles the text files using twocompile and one compilevhdl scripts.
Notice the option -nowarn DLCRDB that is appended to the ncelab command. This option filters out warning messages about missing temporary libraries. The libraries are not needed for this tutorial.
2.When you are finished looking at the script, close the file.
3.Go to the digitalLib directory.
4.Use a viewing tool to examine the contents of the compile script, which is called by the runBehavioral script that you looked at in Step 1.
This compile script calls ncvhdl to compile the clock.vhd file and then calls ncvlog to compile the other text modules.
#!/bin/csh -f
ncvhdl -use5x clock.vhd
foreach i ($argv)
echo " Compiling $i " ncvlog -ams -use5x $i
end
5.When you are finished looking at the script, close the file.
6.Go up to the directory where your copy of the tutorial is located.
7.Type runBehavioral at the command line to run the runBehavioral script.
This script compiles the text modules, elaborates the design, and then opens the SimVision windows so you can simulate the design. You can safely ignore the warning messages about resolving modules during the elaboration step.
8.Exit from SimVision.
(The tutorial demonstrates how to use SimVision later.)
Running within the AMS Environment
Before you begin this part of the tutorial, be sure that you have followed the steps described in “Running from a Script” on page 27.
In this part of the tutorial, you use the AMS environment to netlist, compile, elaborate, and simulate the design.
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Virtuoso AMS Environment User Guide
Quick-Start Tutorial
Opening the Command Interpreter Window
You use the Command Interpreter Window (CIW) to control the design session.
Type icms at the command line.
The CIW appears.
For more information on the CIW, see “Using the Command Interpreter Window” in
Cadence Design Framework II User Guide.
Opening the Schematic and Design Configuration
The tutorial design, at the highest level, consists of a schematic and a corresponding configuration. To open them,
1. In the CIW, choose Tools – Library Manager.
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Virtuoso AMS Environment User Guide
Quick-Start Tutorial
The Library Manager form appears.
2.In the Library column, click amslib to show all the cells in the amslib library.
3.In the Cell column, click top to show all the views in the top cell.
4.In the View column, double-click on config.
The Open Configuration or Top CellView form appears.
5.Turn on both Configuration and Top Cell View.
6.Click OK.
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The hierarchy editor appears, displaying the top config view and the Virtuoso schematic editor appears, displaying the top schematic view.
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Virtuoso AMS Environment User Guide
Quick-Start Tutorial
The top schematic is shown below:
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Quick-Start Tutorial
The top config view data is displayed in the Cadence hierarchy editor, as shown below:
Notice that analogLib is included in the Library List field. This library must be in the library list because one of the components in the library, vsource, is used in a text cellview.
7. In the View List field, add the viewdaconv_behav.
The added view contains the entity and architecture for the daconv cell. After this change, the View List field displays
schematic module vhdl_behavioral spectre daconv_behav
8.Choose View – Update (Needed), which updates the configuration. The daconv cell is bound to the daconv_behav view.
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