Specifications

1–18 Chapter 1: Nios II Hardware Development
Creating the Design Example
Nios II Hardware Development Tutorial May 2011 Altera Corporation
7. Connect the clk_reset port of the clk_0 clock source to the reset port of the JTAG
UART.
8. Connect the
data_master port of the Nios II processor to the avalan_jtag_slave
port of the JTAG UART.
1 The
instruction_master port of the Nios II processor does not connect to the JTAG
UART because the JTAG UART is not a memory device and cannot send instructions
to the Nios II processor.
f For more information about the JTAG UART, refer to the JTAG UART Core chapter in
the Embedded Peripherals IP User Guide.
Add the Interval Timer
Most control systems use a timer component to enable precise calculation of time. To
provide a periodic system clock tick, the Nios II HAL requires a timer.
Perform the following steps to add the timer:
1. On the Component Library tab, expand Peripherals, expand Microcontroller
Peripherals, and then click Interval Timer.
2. Click Add. The Interval Timer parameter editor appears. Figure 1–9 shows the
GUI.
3. In the Presets list, select Full-featured.
1 Do not change any of the other default settings.