Forum Discussion
Ash_R_Intel
Regular Contributor
2 years agoHi,
User custom pattern can be sent through the tx_parallel_data port only. The NPDME adds the JTAG master interface only so that user can easily connect to internal register space via system console.
Regards
TomCarpenter
Occasional Contributor
2 years agoI could be misunderstanding something, but I'm not sure how that helps me.
I don't have any of the transmitter lanes broken out on the board, and simply looping back within the transceiver lane in the FPGA surely doesn't help me test the BER of an incoming receive lane.
Or are you saying that the transceiver can directly compare the incoming data on the RX lane from outside the FPGA with that of the transmit lane (as it it were a loopback external to the FPGA)?