GOWIN DK-VIDEO-GW2A18-PG484 User guide

Application Guide of HDMI Video DEMO for 90-degree
Rotation Based on DK-VIDEO-GW2A18-PG484
TN368-1.0E
www.gowinsemi.com
1(4)
Application Guide of HDMI Video
DEMO for 90-degree Rotation Based on
DK-VIDEO-GW2A18-PG484
System Composition
The system composition of the HDMI video demo for 90-degree
rotation based on DK-VIDEO-GW2A18-PG484 is as shown in Figure 1.
Figure 1 System Composition
1
2
3
4
1 DK-VIDEO-GW2A18-PG484
3 HDMI cable*2
2 PC Host or laptop with HDMI interface
4 Displayer with HDMI interface

Application Guide of HDMI Video DEMO for 90-degree
Rotation Based on DK-VIDEO-GW2A18-PG484
TN368-1.0E
www.gowinsemi.com
2(4)
System Introduction
The system diagram is as shown in Figure 2.
Figure 2 System Diagram
HDMI
DK-VIDEO-GW2A18-PG484
Board
GW2A18
FPGA
DDR3
IP
PLL
RX
Module
HDMI
RX
HDMI
TX
HDMI
RGB RGB
DDR3
OSC
Scaler
IP
TX
Module
Frame
Buffer
This system is a HDMI video demo for 90-degree rotation based on
DK-VIDEO-GW2A18-PG484. The 1280*720 video signal is sent to the
development board via the HDMI interface on the PC host and received by
the development board via the HDMI1 RX interface. The video signal is
then converted to RGB data format by ADV7611 HDMI chip and sent to
FPGA. The FPGA first rotate the video data by 90 degrees, and then
caches the video data to DDR3, and at last sends it to the display screen
through ADV7513 HDMI chip.
Connection Mode
1. Connect the PC host and the HDMI1 interface of the development
board using a HDMI cable.
2. Connect the PC screen and the HDMI2 interface of the development
board using the other HDMI cable.
3. Connect the PC and the development board using a USB Mini-B cable.
4. Connect to12V power supply.
5. Set MODE to“000” , turn on the power switch.
6. Download the FPGA running program. The LED2 on the development
board blinks after the download is complete.
7. Turn on the PC/laptop and the displayer and set the resolution of video
output as 1080*720. After rotating through the FPGAon the
development board, the resolution displayed on the screen is
1280*720.
8. Adjust the rotation direction as clockwise or counterclockwise by SW1.

Application Guide of HDMI Video DEMO for 90-degree
Rotation Based on DK-VIDEO-GW2A18-PG484
TN368-1.0E
www.gowinsemi.com
3(4)
Notes
1. The power supply for this development board is DC 12V. The core
diameter of the power socket is 2.5mm. A matching adapter is required.
2. When connecting the USB port, force evenly to prevent the USB
interface damage.
3. Pay attention to the electrostatic before handing.

Application Guide of HDMI Video DEMO for 90-degree
Rotation Based on DK-VIDEO-GW2A18-PG484
TN368-1.0E
www.gowinsemi.com
4(4)
Terminology and Abbreviations
The terminology and abbreviations used in this manual are as shown
in Table 1below.
Table 1 Abbreviations and Terminology
Terminology and Abbreviations
Full Name
HDMI
High-Definition Multimedia Interface
PG484
PBGA484
FPGA
Field Programmable Gate Array
DDR
Double Data Rate
USB
Universal Serial Bus
Support and Feedback
Gowin Semiconductor provides customers with comprehensive
technical support. If you have any questions, comments, or suggestions,
please feel free to contact us directly by the following ways.
Website: www.gowinsemi.com
E-mail:[email protected]
Tel: [phone] 82620391
Revision History
Date
Version
Description
02/05/2020
1.0E
Initial version published.

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