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AR# 66402

CPRI v8.5 Rev1 - Patch Update for CPRI v8.5 Rev 1 in Vivado 2015.4


This answers record contains patch updates for CPRI v8.5 Rev 1 in Vivado 2015.4.

The patch is not needed in version 2016.1 and later versions.


CPRI v8.5 Rev 1 Patch

For a detailed list of CPRI Release Notes and Known Issues, see (Xilinx Answer 54473).

Patch Installation :

  1. Navigate to the $XILINX_VIVADO/patches directory (create this directory if it does not exist). (See (Xilinx Answer 60154) for steps to set your XILINX_VIVADO environment variable so that it points to your Xilinx installation).
  2. Extract the contents of the ".zip" archive to a directory there, and call the directory AR66402. Note: most extraction tools will allow you to automatically create a directory with the same name as the zip file.
  3. Run Vivado software tools from the original install location.

Fixed Issue :

  1. In current releases of the CPRI core the 64B66B sync header is transmitted and received incorrectly. This affects cores operating at line rates of 8110.08Mbps, 10137.6Mbps and 12165.12Mbps.
  2. In addition the CLRMASK input of the BUFG_GTs in the CPRI clocking logic is tied to an incorrect value. This affects all UltraScale and UltraScale+ based cores.


Associated Attachments

Name File Size File Type
AR66402_Vivado_2015_4_preliminary_rev1.zip 1 MB ZIP

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
54473 LogiCORE IP CPRI Core - Release Notes and Known Issues for Vivado 2013.1 and newer tool versions N/A N/A
AR# 66402
Date 07/07/2016
Status Active
Type General Article
  • CPRI