AR# 68282

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.

A fix will be contained in the 2017.1. release


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 AR68282.
    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 Issues:

  • In current releases of the CPRI core the 64B66B sync header is transmitted and received incorrectly. This affects cores operation at line rates of 8110.08Mbps, 10137.6Mbps and 12165.12Mbps.
  • 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.
  • 64B66B Control Word /T/ cannot be encoded correctly.


Associated Attachments

Name File Size File Type 1 MB ZIP
AR# 68282
Date 01/11/2017
Status Active
Type General Article