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Chapter 3: Building the SOPC System 3–13

Coordinate Components in the System

Preliminary

3. To hide the arbitration priorities, on the View menu, click Show Arbitration.

Specify the Nios II Processor Boot Configuration

Immediately after it completes its hardware reset sequence, the Nios II processor

begins executing software located at a predefined memory location. The reset vector

specifies this location.

1 Altera recommends that your reset vector specify a non-volatile memory location.

When a software exception or interrupt event occurs, the Nios II processor begins

executing software in another predefined location.The exception vector specifies this

location.

To set the reset and exception vectors for the Nios II processor in your system,

perform the following steps:

1. In the Module Name column, double-click cpu. The Nios II processor

MegaWizard interface appears.

2. Under Reset Vector, for Memory, click ext_flash.

3. For Offset, type 0x100000.

4. Under Exception Vector, for Memory, click ssram.

5. For Offset, type 0x20.

Figure 3–12 shows the Nios II Processor MegaWizard interface after you perform

these steps.

Figure 3–11. Arbitration Priorities in Digital Picture Viewer SOPC Builder System

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 45 46

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