Forum Discussion
Deshi_Intel
Regular Contributor
5 years agoHi,
Unfortunately clkusr is a must requirement. clkusr provided clock to transceiver channel to perform power on calibration during FPGA power up stage before FPGA enter user mode.
In your case, the transceiver channel may already gone wild and malfunction during power up stage due to missing clock before you can perform any transceiver operation (be it loopback test or anything) after FPGA enter user mode.
So, I don't think it will works and whatever test result on transceiver is not reliable as well.
Thanks.
Regards,
dlim