This answer record contains the Release Notes and Known Issues for the Gamma Correction LogiCORE IP core and includes the following:
This Release Notes and Known Issues Answer Record is for the core generated in Vivado 2013.1 and newer tool versions.
Please reference XTP025 - IP Release Notes Guide for past known issue logs and ISE support information.
Gamma Correction LogiCORE IP Page:
https://www.xilinx.com/content/xilinx/en/products/intellectual-property/ef-di-gamma.html
This core will be obsoleted in the 2019.1 release and is not recommended for new designs.
It is replaced by the Gamma LUT LogiCORE IP which is a license free IP bundled with Vivado.
General Information
Supported devices can be found in the following three locations:
For a list of new features and added device support for all versions, see the Change Log file available with the core in Vivado design tools.
Version Table
This table correlates the core version to the first Vivado design tools release version in which it was included.
| Core Version | Vivado Tools Version | |
|---|---|---|
| v7.0 (Rev. 15) | 2018.3 | (Xilinx Answer 71806) |
| v7.0 (Rev. 14) | 2017.4 | |
| v7.0 (Rev. 13) | 2017.3 | |
| v7.0 (Rev. 12) | 2016.4 | |
| v7.0 (Rev. 11) | ||
| v7.0 (Rev. 10) | ||
| v7.0 (Rev. 9) | ||
| v7.0 (Rev. 8) | ||
| v7.0 (Rev. 57 | ||
| v7.0 (Rev. 6) | ||
| v7.0 (Rev. 5) | 2014.2 | |
| v7.0 (Rev. 4) | 2014.1 | |
| v7.0 (Rev. 3) | 2013.4 | |
| v7.0 (Rev. 2) | 2013.3 | |
| v7.0 (Rev. 1) | 2013.2 | |
| v7.0 | 2013.1 |
General Guidance
The table below provides answer records for general guidance when using the Gamma Correction LogiCORE IP.
| Answer Record | Title |
|---|---|
| N/A | N/A |
Known and Resolved Issues
The following table provides known issues for the Gamma Correction LogiCORE IP, starting with v7.0, initially released in Vivado 2013.1.
Note: The "Version Found" column lists the version the problem was first discovered.
The problem might also exist in earlier versions, but no specific testing has been performed to verify earlier versions.
| Answer Record | Title | Version Found | Version Resolved |
|---|---|---|---|
| (Xilinx Answer 61432) | Why does the Gamma table update every frame? | v7.0 | N/A |
| (Xilinx Answer 57773) | Why does the TREADY stall when using the TEST_PATTERN or BYPASS options available in some of the Video IP when the Include Debug Features option is enabled at generation? | v6.01.a | N/A |
| (Xilinx Answer 52215) | Why does my core fail timing with a Critical Warning? | v6.01.a | v7.0 (Rev. 2) |
| (Xilinx Answer 56274) | Vivado 2013.2 Multimedia Video and Imaging - How do I properly constrain the Video IP in my design? | v7.0 | v7.0 (Rev. 2) |
| (Xilinx Answer 55980) | Why do I see write failures on the AXI4-Lite bus, when the AXI4-Stream clock is at a different frequency than the AXI4-Lite interface clock? | v7.0 | v7.0 (Rev. 1) |
Please seek technical support via the Video Board. The Xilinx Forums are a great resource for technical support.
The entire Xilinx User Community is available to help here, and you can ask questions and collaborate with Xilinx experts to get the solutions you need.
| 02/04/2019 | Added v7.0 (Rev. 12-15) Added forum link, obsoleted information |
| 07/09/2014 | Added v7.0 (Rev. 3), v7.0 (Rev. 4), v7.0 (Rev. 5) to Version Table, (Xilinx Answer 61432) |
| 10/23/2013 | Added v7.0 (Rev. 2) to Version Table, (Xilinx Answer 57773) and updated Known and Resolved Issues table for 2013.3. |
| 06/19/2013 | Added v7.0 (Rev. 1) to Version Table, (Xilinx Answer 56274), (Xilinx Answer 55980) |
| 04/03/2013 | Initial Release |
| Answer Number | Answer Title | Version Found | Version Resolved |
|---|---|---|---|
| 56852 | Xilinx Multimedia, Video and Imaging Solution Center - Top Issues | N/A | N/A |
| Answer Number | Answer Title | Version Found | Version Resolved |
|---|---|---|---|
| 61625 | Video IP Example Design Landing Page | N/A | N/A |
| AR# 54523 | |
|---|---|
| Date | 02/04/2019 |
| Status | Active |
| Type | Release Notes |
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