Altera RAM Initializer - Manual (Page 28)

2–16 Confidential—Internal Use Only Altera Corporation
RAM Initializer (ALTMEM_INIT) Megafunction User Guide May 2008
Design Example 2: Memory Initialization with External ROM
The example design files are available in the User Guides section on the
Literature page of the Altera website (
www.altera.com ).
Configuration Settings
In the RAM Initializer MegaWizard Plug-In Manager pages, select or
verify the configuration settings shown in
Table 2–3 . Click Next to
advance from one page to the next.
Functional Simulation in the ModelSim-Altera Simulator
Simulate the design in the ModelSim-Altera software to generate a
waveform display of the device behavior.
You should be familiar with the ModelSim-Altera software before trying
out the design example. If you are unfamiliar with the ModelSim-Altera
software, refer to the support page for software products on the Altera
website (
www.altera.com ). On the support page, there are links to such
topics as installation, usage, and troubleshooting.
Set up and simulate the design in the ModelSim-Altera software by
performing the following steps:
1. Unzip the DE2_externalROM.zip file to any working directory on
your PC.
2. Start the ModelSim-Altera software.
3. On the File menu, click Change Directory.
4. Select the folder in which you unzipped the files.
5. Click OK.
Table 2–3. Design Example 2: Configuration Settings
MegaWizard Plug-In
Manager Page
MegaWizard Plug-In Manager Configuration Setting Value
3 Currently selected device family HardCopy II
Which RAM initialization mode should be used? From external ROM
What is the read latency? 2
What is the number of words? 16
What is the data width? 8
Create a clken port Selected