Altera Nios II, Hardware Development Manual

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Chapter 1: Nios II Hardware Development 1–21
Creating the Design Example
May 2011 Altera Corporation Nios II Hardware Development Tutorial
1. On the Component Library tab, expand Peripherals , expand Microcontroller
Peripherals , and then click PIO (Parallel I/O) .
2. Click Add . The PIO (Parallel I/O) parameter editor appears. Figure 1–11 shows
the GUI.
1
Do not change the default settings. The parameter editor defaults to an 8-bit output-
only PIO, which exactly matches the needs for the design example.
Figure 1–11 shows the PIO (Parallel I/O) parameter editor.
3. Click Finish . You return to the Qsys System Contents tab, and an instance of the
PIO appears in the system contents table.
4. In the Name column, right-click the PIO and click Rename .
5. Type
led_pio
and press Enter.
6. Connect the
clk
port of the clk_0 clock source to the
clk
port of the PIO.
Figure 1–11. PIO Parameter Editor