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AR# 50384

2013.2 Vivado Timing - ERROR: [Constraints-443] set_max_delay -datapath_only: 't1_reg/Q' is not a valid start point

描述

We are applying a set_max_delay constraint and are getting an error as mentioned below.
ERROR: [Constraints-443] set_max_delay -datapath_only: 't1_reg/Q' is not a valid start
Why do we see this issue?

解决方案

The issue is that "Q" is not a valid start point.  Please change the start point to the clock (CLK) pin of that cell or use the cell as the start point.

附件

文件名 文件大小 File Type
test2.txt 4 Bytes TXT
AR# 50384
日期 08/07/2013
状态 Active
Type 综合文章
Tools
  • Vivado Design Suite - 2012.1
  • Vivado Design Suite - 2012.2
  • Vivado Design Suite - 2012.3
  • More
  • Vivado Design Suite - 2012.4
  • Vivado Design Suite - 2013.1
  • Vivado Design Suite - 2013.2
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