01-12-2018 12:06 PM - edited 01-12-2018 12:14 PM
I'm running Vivado 2014.3 on a Kintex KC705 Evaluation Board. I want to output a PRBS signal on the SMA ports to drive an electro-optic modulator. I want to have control over the following:
The GTX transceiver is too fast, the minimum bitrate is 500 Mbps, so I can't use IBERT. I want to have a maximum bitrate of 200 Mbps.
How do I go about doing this?
01-15-2018 02:06 AM
01-15-2018 01:20 PM - edited 01-15-2018 01:28 PM
I want to use the GPIO SMA ports (pin Y23). I'd want both a PRBS or a user-defined sequence of bits that loops back continuously to be outputted on the SMA ports. I see that the user I/Os can also be hooked up to the FMC outputs but we'd need our breakout board, so it'd be most helpful to have it on the GPIO SMA connectors. The speed of the output signal should be between 100 and 200 Mbps.
Ideally, it'd be something similar to this post: https://forums.xilinx.com/t5/7-Series-FPGAs/SDK-GPIO-implementation/td-p/784626