Altera DSP Development Kit, Cyclone II Edition Getting St Manuale Utente Scaricare il pdf (Pagina 26)

2–16 Getting Started User Guide Altera Corporation

DSP Development Kit, Cyclone II Edition August 2006

Testing the Board Using the Factory Design

Figure 2–7. Factory Design Functional Block Diagram

1 The design files for the factory design are installed from the DSP

Development Kit, Cyclone II Edition Version 6.0.1 CD-ROM in the

directory:

<path>\CycloneII_DSP_Kit-v6.0.1\Examples\

FactoryDesign_ChA

Testing LEDs & Pushbutton Switches

In the factory design, switches SW2 through SW5 (USER_PB3 through

USER_PB0) are connected via inverters to LEDs D9 through D6

(USER_LED0 to USER_LED3, respectively). When a switch is pressed, the

corresponding LED turns off. You can test this functionality on the

Cyclone II DSP development board.

Performing the A/D & D/A Converter Performance Test

To test the A/D and D/A converter performance using the factory

design, follow these steps:

1. “Configuring the Board” on page 2–17

2. “Collecting Data Using the SignalTap II Logic Analyzer” on

page 2–20

3. “Analyzing the Data in the MATLAB Software” on page 2–20

comb[13..0]

a2db[11..0]

100 MHz

Clock Signal

Cyclone II Device (U18)

1 MHz

Sine Wave Source

NCO

ADC A

DAC A

10 MHz

Sine Wave Source

NCO

DAC904E Device

(U25)

ADS5520 device

(U26)

SignalTap II

DAC CHANNEL A out (J31)

SMA Connector

ADC CHANNEL A in (J32)

SMA Connector

SMA Cable and

SLP-50 Low-pass

Filter

comb[13..0]

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 32

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