Zynq UltraScale MPSoC Base TRD 2016.3 - Design Module 8

Return to the Design Tutorials Overview.

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Design Overview

This module shows how to move the 2D convolution filter from software to hardware using the PL optimized hls_video library that provides an OpenCV equivalent function.

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Design Components

This module requires the following components:

• zcu102_base_trd (SDSoC)
• pmu_fw
• petalinux_bsp
  • zynqmp_fsbl
  • bl31
  • u-boot
  • kernel
  • device tree
  • rootfs
• filter2d (HW)
• video_lib
• video_qt2

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Build Flow Tutorials

2D Filter Sample

This tutorial shows how to build the hls_video version of the 2D filter sample based on the Base TRD SDSoC platform.

• Open the existing SDx workspace from design module 7 using the SDx tool.

  % cd $TRD_HOME/apu/video_app % sdx -workspace . &&

  
  

• Expand the filter2d project and sources in the project explorer, select the filter2d_sds function and click 'Toggle HW/SW' to select this function for hardware acceleration.
  
• Verify the function was added to the HW functions in the project settings panel and the clock frequency is set to 300MHz
  
• Right-click the filter2d project and select 'Build Project'.
  

• Copy the content of the generated sd_card folder to the dm8 SD card directory

  % cp -rf filter2d/Release/sd_card $TRD_HOME/images/dm8

  
  

Video Qt Application

There is no need to rebuild the video_qt2 application if you have already built it in module 7, otherwise follow the instructions from module 7.

• Copy the generated video_qt2 executable to the dm8 SD card directory or alternatively use the pre-built version bundled with the SDSoC platform.

  % cp -f video_qt2/video_qt2 $TRD_HOME/images/dm8/bin/

  
  

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Run Flow Tutorial

• See here for board setup instructions.
• Copy all the files from the $TRD_HOME/images/dm8 SD card directory to a FAT formatted SD card.
• Power on the board to boot the images; make sure INIT_B, done and all power rail LEDs are lit green.
• After ~30 seconds, the display will turn on and the application will start automatically, targeting the max supported resolution of the monitor (one of 3840x2160 or 1920x1080 or 1280x720).

• Upon application exit, use the below login and password to log into the framebuffer or serial console:

  root@Xilinx-ZCU102-2016_3 login: root password: root

  
  

• The SD card file system is mounted at /media/card
• To re-start the TRD application type run_video.sh
• The user can now control the application from the GUI's control bar (bottom) displayed on the monitor.
• By default, application launches with VIVID as a video-source, user can also select TPG from the "Video-source selection" button present on the GUI's control-bar.
  • Virtual Video Device (VIVID): emulates a USB webcam purely in software
  • USB Webcam (UVC): using the universal video class driver
  • Test Pattern Generator (TPG); implemented in the PL
• A 2D convolution filter can be turned on and different filter presets can be selected; the following filter modes are available:
  • OFF - accelerator is disabled/bypassed
  • SW - accelerator is run on A53 using OpenCV algorithm
  • HW - accelerator is run on PL generated from HLS algorithm
  
• The video info panel (top left) shows essential settings/statistics.
• The CPU utilization graph (top right) shows CPU load for each of the four A53 cores.