AR# 50384

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

Description

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?

Solution

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.

Attachments

Associated Attachments

Name File Size File Type
test2.txt 4 Bytes TXT
AR# 50384
Date 08/07/2013
Status Active
Type General Article
Tools More Less