Altera CRC Compiler - Manual (Page 13)

Chapter 2: Getting Started 2–3
CRC Compiler Walkthrough
© November 2009 Altera Corporation CRC Compiler User Guide
Preliminary
Launch the MegaWizard Plug-In Manager
To launch the MegaWizard Plug-In Manager in the Quartus II software, follow these
steps:
1. Start the MegaWizard Plug-In Manager by choosing MegaWizard Plug-In
Manager (Tools menu). The MegaWizard Plug-In Manager dialog box displays .
f Refer to Quartus II Help for more information on how to use the
MegaWizard Plug-In Manager.
2. Ensure Create a new custom megafunction variation is selected and click Next.
3. Expand the folder under Installed Plug-Ins by clicking the + icon next to
Communications . Expand the Additional Functions directory and select CRC
Compiler v9.1 .
4. Choose the device family that you want to use for this MegaCore function
variation; for this example, select Stratix II GX.
5. Select the output file type for your design; the CRC compiler supports VHDL and
Verilog HDL.
6. The MegaWizard Plug-In Manager shows the project path that you specified in the
New Project Wizard . Append a variation name for the MegaCore function output
files <project path>\<variation name>.
7. Click Next to display the Parameter Settings page for the CRC compiler.
1 You can change the page displayed in the MegaWizard Plug-In Manager by clicking
Next
or Back at the bottom of the dialog box. You can also move directly to a named
page by clicking Parameter Settings, EDA, or Summary.
Parameterize
To parameterize your CRC compiler MegaCore function, specify the following values
on the Parameter Settings page:
■ For Mode, ensure that CRC generator is selected.
■ For Input Options, specify these values:
■ Datapath , specify 64 bits.
■ Symbols per word , specify 8.
■ For Processing Options, specify these options:
■ Generator, CRC Code, specify CRC-16-CCITT.
■ Optimize for , select Speed.
■ For the rest of the options, use the default values.