Timing/physical constraints

Question

Hi, Can the microZed constraints file be found somewhere? I'm looking for the timing constraints. Does anyone know where to find them? -cja

drozwood90 · Accepted Answer

Hi there,

You can find the trace length report here:
http://picozed.org/support/documentation/4736
Search: "net length"

Using that, you can calculate the delay times for your circuit. Remember that we do not have a time-table, as the tolerance and specific constraints you write will be based on what you are doing with the signals you are using. Knowing the net lengths will allow you to add in the internal delays (as Josh mentioned, come from Vivado), plus add in any delays with your Carrier Card, to finally come up with your constraint.

UG612 might be of some help to you.
https://www.xilinx.com/itp/xilinx10/books/docs/timing_constraints_ug/timing_constraints_ug.pdf

--Dan