Lab bench with the trigger crossbar connected to my BERT with a pair of cables that are definitely not specced to be this well skew matched

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   Andrew Zonenberg (azonenberg@ioc.exchange)'s status on Wednesday, 27-Mar-2024 03:36:39 JST Andrew Zonenberg

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   I'm somewhat impressed. These two random 36" KF047 cables I had lying around are phase matched tightly enough that the ML4039-BTP BERT can send a 10.3125 Gbps PRBS15, with totally guesstimated FFE settings, to the Kintex-7 GTX with a very low BER (zero errors in the minute or so that I felt like waiting).

   I guess now I have to implement all of the glue I need to support proper BERT operation now. Like runtime configurable rates (ideally DRP to dynamically tweak PLL configuration but we'll see how that goes), eye scan, inversion, etc.