Forum Discussion
BAro0
New Contributor
6 years agoclock multiplexing
I have a few clock signals as input and would like to internally multiplex them and generate one clock output that clocks an external device. Is it safe to use logic (LUT) muxers for a clock, knowing...
sstrell
Super Contributor
6 years agoAny signal, even if it's not coming from a dedicated clock pin, can connect to the clock resources mentioned. There will be some added delay that you can see in the timing analyzer, but the resources can still be used.
#iwork4intel
BAro0
New Contributor
6 years agonot really! I tried that on the clock muxer in the clock control block but it did not route.
You will get error ID:15660
https://www.intel.com/content/www/us/en/programmable/quartushelp/16.0/index.htm#msgs/msgs/ecut_cut_arm_clkbuf_illegal_inclk_source.htm