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AR# 51043

Soft Error Mitigation (SEM) IP - SEM IP Core fails to initialize when configuration is done through Digilent programming solution

Description

The Soft Error Mitigation (SEM) IP Core is recommended for use with Xilinx programming solutions. 

Incorrect behavior of the SEM IP Core can occur when using Digilent programming solutions.

Solution

The SEM IP core might fail to initialize when the bitstream containing the SEM IP core is downloaded by a Digilent programming solution.

This issue is independent of the design tool version or IP core version.

This can be observed through the initialization report. A normal report should look like the following:

X7_SEM_V3_3

SC 01

FS 02

ICAP OK

RDBK OK

INIT OK

SC 02

O>

When initialization fails due to this issue, the report looks similar to the following:

X7_SEM_V3_3

SC 01

FS 02

ICAP OK

RDBK OK

INIT

Notice that after 'INIT' there is no indication of an 'OK' status. This issue is currently under investigation and will be updated in this answer record when more details are known.

A work-around is to use a Xilinx programming solution such as the Platform Cable USB or Platform Cable USB II.

This issues is fixed for Digilent by updating the programming cable driver. Please download the latest cable driver for the Digilent cable.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
54642 Soft Error Mitigation IP Core - Release Notes and Known Issues for Vivado 2013.1 and newer tool versions N/A N/A
AR# 51043
Date Created 07/27/2012
Last Updated 05/09/2016
Status Active
Type General Article
Boards & Kits
  • FPGA Programming Cables and Adapters