04-12-2012 11:07 AM
I am currently doing the pin assignments for Spartan 150, I use Xilinx tools version 12.4.
I know that the incoming clocks should be coming through GCLK pins, how about outgoing clocks? Is there any benefit to put outgoing clocks on GCLK pins?
Is there a check list or recommended design practices (for pin assignments) that I need to go over before finishing up the pin assignments?
Solved! Go to Solution.
04-12-2012 11:52 AM
It depends on which Spartan (s3, s6, etc.), and the frequency of your clock. You may also want to use clock forwarding to put the clock alighned with data instead of just sending it directly the output. Here is an Answer Recored for Virtex-II that has some suggestions:
Also, here is another forum thread that points to some clock forwading templates for Spartan devices: