Forum Discussion
Altera_Forum
Honored Contributor
10 years ago --- Quote Start --- In Altera's examples they set multicycle_path for enabled triggers and thus don't set timing requirements for them at all. However, sometimes this part of a project still needs timing requirements (maybe less strict). Is it possible set timing requirements for such piece of a project? Another problem that I've faced is difficulties in specifying triggers to set multicycling option to if they are "buried" into the project's hierarchy. --- Quote End --- In those examples the multicycle constraint is a timing constraint on all registers enabled by the enable signal. Without them setup relationship defaults to one clock period and hold to zero, with them you relax it e.g. to 2 for setup, 1 for hold or 3 for setup, 2 for hold. A convenient way to locate the nodes is to run TQ and then go to node finder and copy its path and name.