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AR# 57885

2014.4 Vivado Power - Vectorless switching activity propagation is incorrect for DSP blocks

Description

If I run vectorless power analysis, the switching activity propagation is incorrect for the DSP blocks.

I am running the 'report_switching_acitivity' command with mixed results, after setting the 'set_switching_activity' command on the input ports.

How can I work around this?

Solution

The workaround is to place the 'set_switching_activity' command on the output nets of the DSP component.

This issue is scheduled to be fixed in the next release of the tools.

AR# 57885
Date Created 10/09/2013
Last Updated 12/17/2014
Status Active
Type Known Issues
Tools
  • Vivado Design Suite - 2013.2
  • Vivado Design Suite - 2013.3
  • Vivado Design Suite - 2013.4
  • More
  • Vivado Design Suite - 2014.1
  • Vivado Design Suite - 2014.2
  • Vivado Design Suite - 2014.3
  • Vivado Design Suite - 2014.4
  • Less