AR# 52831

Vivado Timing Analysis - Why is the set_input_delay without clock option ignored?

Description

Why is the set_input_delay command ignored?

I have used the set_input_delay command without the -clock option, but it appears that the command is ignored.

I receive the following warning:

CRITICAL WARNING: [Constraints 18-449] set_input_delay: No clock objects specified for -clock option, set_input_delay without -clock option will constrain the pin/port with a virtual clock.

Solution

The set_input_delay command requires the -clock option.

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AR# 52831
Date	10/20/2014
Status	Active
Type	Known Issues
Tools	Vivado Design Suite - 2012.3 Vivado Design Suite - 2012.4 Vivado Design Suite - 2013.1 Vivado Design Suite - 2013.2

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