
DECA User Manual
68
www.terasic.com
May 22, 2015
calculated and then the array LEDs will respond accordingly in this demonstration to indicate the
input audio volume.
Design Tools
Quartus II v15.0 64-bit
Demonstration Source Code
Project directory: LineIn_ADC
Bit stream: DECA.sof
Demonstration Batch File
Demo batch file folder: LineIn_ADC\demo_batch
Batch file: test.bat
FPGA Configure File: DECA.sof
Demonstration Setup
Please make sure Quartus II and USB-Blaster II driver are installed on the host PC.
Connect the USB cable from the USB-Blaster II port (J10) on the DECA board to the host PC.
Input audio into the Line-In Jack (J2) on the DECA board.
Power on the DECA board.
Execute the demo batch file “test.bat” under the folder LineIn_ADC\demo_batch.
The LEDs indicate the volume of input audio.
5
5
.
.
8
8
H
H
D
D
M
M
I
I
T
T
X
X
Want to know more about HDMI? We now introduce how to program the HDMI transmitter to
generate video pattern and audio source. The entire reference is composed into three parts: video
design, audio design and I2C design. A set of pre-built video patterns and audio serial data will be
sent to the HDMI transmitter to drive the HDMI display with speaker. You can hear beeping sound
from the HDMI display speaker when you press KEY[0] on the DECA board.
Figure 5-15
shows the system block diagram of this reference design. I2C Controller and I2C