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programmable-logic:zybo-z7:demos:hdmi [2022/08/03 16:58] – additional Zybo Z7 setup instructions James Colvin | programmable-logic:zybo-z7:demos:hdmi [2023/08/25 00:22] (current) – Move to direct file links for downloads Arthur Brown | ||
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+ | ====== Zybo Z7 HDMI Input/ | ||
+ | <WRAP JUSTIFY> | ||
+ | {{: | ||
+ | <WRAP JUSTIFY> | ||
+ | ---- | ||
+ | ===== Description ===== | ||
+ | The Zybo Z7 HDMI project demonstrates the usage of the HDMI source and sink ports on the Zybo Z7. | ||
+ | The behavior is as follows: | ||
+ | |||
+ | * Video data streams in through the HDMI sink (RX) port and out through the HDMI source (TX) port. | ||
+ | * A UART interface is available to configure what is output through HDMI. | ||
+ | * Three frame buffers that the user can use to choose what to display are provided. | ||
+ | |||
+ | ---- | ||
+ | ===== Inventory ===== | ||
+ | |||
+ | * Zybo Z7 with a MicroUSB Programming Cable | ||
+ | * Vivado and Vitis installations compatible with the latest release of this demo (2022.1) | ||
+ | * //See [[programmable-logic: | ||
+ | * Serial Terminal application to receive messages printed by the demo | ||
+ | * //See [[programmable-logic: | ||
+ | * 2 HDMI Cables | ||
+ | * HDMI Source | ||
+ | * HDMI Monitor | ||
+ | |||
+ | ---- | ||
+ | ===== Download and Usage Instructions ===== | ||
+ | |||
+ | First and foremost, releases - consisting of a set of files for download - are only compatible with a specific version of the Xilinx tools, as specified in the name of the release (referred to as a //release tag//). In addition, releases are only compatible with the specified variant of the board. For example, a release tagged " | ||
+ | |||
+ | The latest release version for this demo is highlighted in green. | ||
+ | |||
+ | **Note:** //Releases for FPGA demos from before 2020.1 used a different git structure, and used a different release tag naming scheme.// | ||
+ | |||
+ | ^ Board Variant | ||
+ | | Zybo Z7-10 | @#C0EEBD: 10/ | ||
+ | | Zybo Z7-20 | @#C0EEBD: 20/ | ||
+ | | Zybo Z7-10 | 10/ | ||
+ | | Zybo Z7-20 | 20/ | ||
+ | | Zybo Z7-10 | 10/ | ||
+ | | Zybo Z7-20 | 20/ | ||
+ | | Zybo Z7-10 | 10/ | ||
+ | | Zybo Z7-20 | 20/ | ||
+ | | Zybo Z7-10 | v2018.2-2 | ||
+ | | Zybo Z7-20 | v2018.2-2 | ||
+ | | Zybo Z7-10 | v2016.4-1 | ||
+ | | Zybo Z7-20 | v2016.4-1 | ||
+ | |||
+ | **Note for Advanced Users:** //GitHub sources for this demo can be found in the [[https:// | ||
+ | ---- | ||
+ | Instructions on the use of the latest release can be found in this dropdown: | ||
+ | |||
+ | --> Using the Latest Release #^ | ||
+ | <WRAP group> | ||
+ | |||
+ | {{page> | ||
+ | |||
+ | {{page> | ||
+ | |||
+ | --> Build a Vitis Application # | ||
+ | <WRAP group> | ||
+ | {{page> | ||
+ | </ | ||
+ | <-- | ||
+ | |||
+ | --> Set up the Zybo Z7 # | ||
+ | <WRAP group> | ||
+ | <WRAP group> <WRAP column half> | ||
+ | Plug the Zybo Z7 into the computer via the microUSB programming cable and power on the board. Make sure the JP5 jumper is set to JTAG. | ||
+ | |||
+ | Plug one end of an HDMI cable into a video source and the other into the Zybo Z7's HDMI RX port. Plug one end of the other HDMI cable into the HDMI TX port of the Zybo Z7 and the other into your HDMI monitor. | ||
+ | </ | ||
+ | {{: | ||
+ | </ | ||
+ | </ | ||
+ | ---- | ||
+ | <-- | ||
+ | |||
+ | {{page> | ||
+ | |||
+ | At this point, the demo is now running on your board. Refer to the [[# | ||
+ | ---- | ||
+ | Additional steps beyond here present how you can use the other archive provided in the release, containing the hardware project, to rebuild the Vivado project, and use a newly exported XSA file to update the platform in Vitis. | ||
+ | ---- | ||
+ | {{page> | ||
+ | </ | ||
+ | <-- | ||
+ | |||
+ | ---- | ||
+ | ==== HDMI Display Options ==== | ||
+ | |||
+ | === 1. Change Display Resolution === | ||
+ | Changes the resolution used for HDMI Output. Note that 1080p (1920x1080@60Hz) is not fully supported. | ||
+ | |||
+ | It should be noted that changing the display resolution does not change the resolution of data received from the video input pipeline. In cases where the input and output resolutions don't match, the video may appear to be cropped, or padded with black, if no data has been previously written to the framebuffer. The input resolution cannot be directly controlled by the demo, and is determined by the HDMI source that the Arty Z7 is connected to. The video input defaults to 720p, as determined by EDID information included in the demo's hardware project. | ||
+ | ---- | ||
+ | === 2. Change Display Framebuffer Index === | ||
+ | Changes the VDMA framebuffer used for the video output. When the input buffer (" | ||
+ | ---- | ||
+ | === 3/4. Print Test Pattern to Display Framebuffer === | ||
+ | Stores one of two test test patterns (blended colors or vertical color bars) into the output buffer, to be displayed immediately. Note that if video input is streaming into the same buffer, the test pattern may be immediately overwritten. | ||
+ | |||
+ | Also to note, if the resolution of the video output is later changed, the video data is cropped or padded to fit the screen. This cropping and padding does not affect the actual stored memory, as it is a result of how the VDMA indexes the framebuffer' | ||
+ | |||
+ | <WRAP group> <WRAP column half> | ||
+ | {{learn: | ||
+ | </ | ||
+ | {{learn/ | ||
+ | </ | ||
+ | ---- | ||
+ | === 5. Start/Stop Video Stream into Video Framebuffer === | ||
+ | Stops the video input. Upon being stopped, the current video input frame is //not// blanked, resulting in the video output displaying a static image of the last frame received, when the framebuffer that frame was stored into is used. | ||
+ | |||
+ | ---- | ||
+ | === 6. Change Video Framebuffer Index === | ||
+ | Increments the index of the framebuffer used for video input. For example, if data is streaming into buffer 0, and the video framebuffer index is incremented, | ||
+ | ---- | ||
+ | === 7. Grab Video Frame and Invert Colors === | ||
+ | Captures one frame from the video input buffer, and inverts all of the colors in that frame, then stores the result to the next framebuffer and sets the display output to view the inverted frame. | ||
+ | |||
+ | <WRAP group> <WRAP column half> | ||
+ | {{learn/ | ||
+ | </ | ||
+ | {{learn/ | ||
+ | </ | ||
+ | ---- | ||
+ | === 8. Grab Video Frame and Scale to Display Resolution === | ||
+ | Captures one frame from the video input buffer, scales it to the resolution used by the display output, then stores the result to the next framebuffer and sets the display output to view the scaled frame. Bilinear interpolation is used for scaling. | ||
+ | ---- | ||
+ | ===== Additional Resources ===== | ||
+ | |||
+ | All materials related to the use of the Zybo Z7 can be found on its [[..: | ||
+ | |||
+ | For a walkthrough of the process of creating a simple baremetal software project in Vivado and Vitis, see [[programmable-logic: | ||
+ | |||
+ | For technical support, please visit the [[https:// | ||
+ | |||
+ | ---- |