UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 43106

Soft Error Mitigation Controller v2.1 - External Shim Interfacing with SPI Device Issues the "enable 32-bit addressing" Multiple Times at Startup

描述

Known Issue: v2.1, v1.3, v1.2, v1.1

Depending on the device targeted and mode of operation of the core, the external SPI flash storage device might need to be put in the 32-bit addressing mode due to the size of the data being stored. 

The external shim interfacing with the SPI device does this by issuing the "enable 32-bit addressing" command 0xB7. 

The external shim is in the provided example design directory in the file named sem_ext.v[hd].

The design begins to issue the command once GSR is released, however the controller resets the shim causing the command to get truncated and resent.

The only configurations impacted by this problem are the following Virtex-6 devices and operation modes:

  • With classification enabled and replace disabled, and targeting the 6VLX760
  • With classification disabled and replace enabled, and targeting the 6VLX760
  • With classification enabled and replace enabled, and targeting the 6VHX380T, 6VHX565T, 6VLX365T, 6VLX550T, 6VLX760, 6VSX315T, or 6VSX475T

If you are using any other configuration, this problem does not impact your design.

 

解决方案

This is more of a cosmetic issue than a functional problem.

Issuing the command multiple times, even if it is truncated does not have any negative impact on the SPI flash device.

This issue is fixed in the v2.2 release which will be part of the 13.3 ISE software release.

 

链接问答记录

主要问答记录

Answer Number 问答标题 问题版本 已解决问题的版本
42103 Soft Error Mitigation Controller - Frequently Asked Questions N/A N/A
42519 Soft Error Mitigation Controller v2.1 - Release Notes and Known Issues N/A N/A

相关答复记录

Answer Number 问答标题 问题版本 已解决问题的版本
44541 Soft Error Mitigation Controller - Release Notes and Known Issues for v1.1 to v3.4 N/A N/A
AR# 43106
日期 09/12/2014
状态 Active
Type 已知问题
器件
IP
的页面