Altera DSP Development Kit, Cyclone II Edition Getting St Manuale Utente Scaricare il pdf (Pagina 24)

2–14 Getting Started User Guide Altera Corporation

DSP Development Kit, Cyclone II Edition August 2006

Using the Reference Designs & Lab

Setting SAFE & USER Configuration Modes

Before starting board testing in “Testing the Board Using the Factory

Design”, you should have a brief understanding of the two configuration

modes of the Cyclone II DSP development board.

The EP2C70 device on the Cyclone II DSP development board can be

configured by using one of two EPCS64 devices. One EPCS64 device

contains a factory configuration referred to as the “SAFE” configuration;

the other EPCS64 device referred to as “USER” configuration is available

to you to store your custom configuration.

f Information about SAFE and USER configuration modes is provided in

the Cyclone II DSP Development Board Reference Manual.

■ J29 controls which EPCS64 device to configure.

● Jumper J29, pins 1 and 2 set SAFE EPCS configuration mode to

run the factory design.

● Jumper J29, pins 2 and 3 set USER EPCS configuration mode to

run a user design.

■ The factory design stored on U17 (SAFE EPCS) configures the device

each time the Cyclone II DSP development board is powered up in

SAFE EPCS configuration mode.

You can also reconfigure the device with the factory design stored in

U17 (SAFE EPCS) by pressing SW7, which resets the hardware and

reconfigures the Cyclone II DSP development board in SYS RESET

mode.

c If you overwrite the factory design stored on U17, refer to the

Restoring the Factory Design appendix in the Cyclone II DSP

Development Board Reference Manual.

■ A user design stored on U36 (USER EPCS) configures the device each

time the Cyclone II DSP development board is powered up in USER

EPCS configuration mode.

For more information on the factory design, and on SAFE and USER

configuration modes, refer to “Testing the Board Using the Factory

Design” on page 2–15.

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Altera DSP Development Kit, Cyclone II Edition Getting St Manuale Utente Pagina 24