Testing leds & pushbutton switches, Ed in – Altera DSP Development Kit, Cyclone II Edition Getting Started User Manual
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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]