Quartus

Design Assistant warning: <External reset should be correctly synchronized>. Found <number> node(s) related to this rule.


CAUSE:

In the current design, the Design Assistant found the specified number of nodes where the synchronization of an external reset (which is a primary input that is used as a reset signal) does not follow one or more of the following guidelines and therefore causes errors in the design:

  • The external reset should be synchronized with two cascaded registers.

  • There should be no logic between the two cascaded registers.

The submessage(s) of this message list the node(s) that the Design Assistant found.

ACTION: Remove the external resets, or correctly synchronize the external resets.

See also:

Analyzing Designs with the Design Assistant
External Reset Should Be Correctly Synchronized

- PLDWorld -

 

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