Add The Pio - Altera Nios II Hardware Development Manual

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Perform the following steps to add the system ID peripheral:
1. On the Component Library tab, expand Peripherals, expand Debug and
Performance, and then click System ID Peripheral.
2. Click Add. The System ID Peripheral parameter editor appears.
1
Do not change the default setting.
Figure 1–10
Figure 1–10. System ID Peripheral Parameter Editor
3. Click Finish. You return to the Qsys System Contents tab, and an instance of the
system ID peripheral appears in the system contents table.
4. In the Name column, right-click the system ID peripheral and click Rename.
5. Type sysid and press Enter.
6. Connect the clk port of the clk_0 clock source to the clk port of the system ID
peripheral.
7. Connect the clk_reset port of the clk_0 clock source to the reset port of the
system ID peripheral.
8. Connect the data_master port of the Nios II processor to the control_slave port
of the system ID peripheral.
f
For more information about the system ID peripheral, refer to the System ID Core
chapter in the

Add the PIO

PIO signals provide an easy method for Nios II processor systems to receive input
stimuli and drive output signals. Complex control applications might use hundreds of
PIO signals which the Nios II processor can monitor. This design example uses eight
PIO signals to drive LEDs on the board.
Perform the following steps to add the PIO. Perform these steps even if your target
board doesn't have LEDs.
Nios II Hardware Development Tutorial
shows the System ID Peripheral parameter editor.
Embedded Peripherals IP User
Chapter 1: Nios II Hardware Development
Creating the Design Example
Guide.
May 2011 Altera Corporation