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# 47936

14.3 EDK, MPMC v6.06.a - VFBC underrun causes shifted images

Description

After writing a few lines, the video shifts by a few pixels. How do I resolve this issue?

Solution

This is caused by improper throttling of the underlying NPI interface, leading to NPI/MCB FIFO underruns.

For errors resulting from writes, a patch is available for download at the end of this answer record. To use, extract thezipped patch to the EDK project pcores/ directory, and restart XPS. The MPMC is currently not planned to be updated to include this patch.

A similar failure has been observed for read transactions, but there is no patch currently available.

Attachments

Associated Attachments

Name File Size File Type
ar47824.zip 6 KB ZIP
AR# 47936
Date Created 10/24/2012
Last Updated 03/02/2013
Status Active
Type General Article
IP
  • Multi-Port Memory Controller (MPMC)