Altera Nios II Hardware Development Manual page 34

1–30
To ensure the design meets timing, perform the following steps:
1. On the File menu, click Open.
2. In the Files of type list, select Script Files (*.tcl, *.sdc, *.qip).
3. Browse to locate <design files directory>/hw_dev_tutorial.sdc and click Open. The
file opens in the text editor.
4. Locate the following create_clock command:
create_clock -name sopc_clk -period 20 [get_ports PLD_CLOCKINPUT]
5. Change the period setting from 20 to the clock period (1/frequency) in
nanoseconds of the oscillator driving the clock pin.
6. On the File menu, click Save.
7. On the Assignments menu, click Settings. The Settings dialog box appears.
8. Under Category, click TimeQuest Timing Analyzer.
Figure 1–18
Figure 1–18. TimeQuest Timing Analyzer Settings
9. Next to File name, click the browse (...) button.
10. Browse to locate <design files directory>/hw_dev_tutorial.sdc and click Open to
select the file.
Nios II Hardware Development Tutorial
shows the TimeQuest Timing Analyzer page of the Settings dialog box.
Chapter 1: Nios II Hardware Development
Creating the Design Example
May 2011 Altera Corporation