Video Processing On Xilinx FPGA Tutorial.pdf BEST

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Video Processing On Xilinx FPGA Tutorial.pdf BEST

How to Implement Video Processing Subsystem on Zynq FPGA

If you are looking for a tutorial on how to implement video processing subsystem (VPSS) on Zynq FPGA, you have come to the right place. In this article, we will show you the steps and demo of using VPSS IP on VIVADO/Vitis software. VPSS is a flexible and scalable IP that can perform various video processing functions such as scaling, cropping, color space conversion, deinterlacing, noise reduction, and more. VPSS can be used to create video applications such as video surveillance, video conferencing, video streaming, and video editing.

Before we start, you will need the following hardware and software:

A Zynq FPGA board (we used ZCU104 board)

A HDMI input source (we used a laptop)

A HDMI output display (we used a monitor)

A USB cable

A serial terminal software (we used PuTTY)

VIVADO/Vitis 2020.2 software

Video Processing Subsystem IP (v3.0) from Xilinx

Now, let's get started with the tutorial.

Step 1: Create a VIVADO project

The first step is to create a VIVADO project and add the VPSS IP to the block design. To do this, follow these steps:

Open VIVADO and create a new project with the name "VPSS_Tutorial".

Select the ZCU104 board as the target device.

Create a block design with the name "design_1".

Add the Zynq UltraScale+ MPSoC IP to the block design and run block automation.

Add the VPSS IP to the block design and customize it according to your requirements. For example, you can enable or disable certain features, change the input/output resolution, color format, frame rate, etc.

Connect the VPSS IP to the Zynq PS IP using AXI4-Stream and AXI4-Lite interfaces.

Add other IPs such as Video Timing Controller (VTC), Video PHY Controller (VPHY), HDMI RX/TX Subsystem, etc. to complete the video pipeline.

Connect all the IPs using appropriate interfaces and run connection automation.

Validate the block design and save it.

Step 2: Generate bitstream and export hardware

The next step is to generate the bitstream and export the hardware to Vitis. To do this, follow these steps:

In VIVADO, click on Generate Bitstream to synthesize, implement, and generate the bitstream for your design.

After the bitstream generation is completed, click on File > Export > Export Hardware.

Select "Include bitstream" and "Launch SDK" options and click OK.

This will launch Vitis and create a hardware platform project with your exported hardware.

Step 3: Create a Vitis application project

The final step is to create a Vitis application project and write the code to configure and control the VPSS IP. To do this, follow these steps:

In Vitis, create a new application project with the name "VPSS_App".

Select your hardware platform project as the platform.

Select "Empty Application" as the template.

Create a new source file with the name "main.c".

Write the code to initialize and configure the VPSS IP using its driver API functions. For example, you can use XVprocSs_CfgInitialize(), XVprocSs_SetVidStreamIn(), XVprocSs_SetVidStreamOut(), XVprocSs_SetSubsystemConfig(), etc.

Write the code to enable or disable certain features of VPSS IP such as scaling mode, deinterlacing mode, noise reduction mode, etc. using its driver API functions. For example, you can use XVprocSs_SetScaler ec8f644aee