AR# 71115

CPRI v8.8 Rev 1 - pcs_rxdata_chX are "x" when running example design simulation

Description

When I run simulation with the Hard FEC IP example design, pcs_rxdata_chX (rx_out) is always "X".

What can cause this problem?

Solution

This is a known issue when using Vivado simulator to simulate the CPRI hard FEC IP example design.

  • Vivado 2017.4 - Users can use an alternative simulator to work around the problem.
  • Vivado 2018.1 - This issue is resolved in CPRI v8.9 in Vivado 2018.1 and later

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

AR# 71115
Date 05/14/2018
Status Active
Type General Article
IP