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Loopback Expansion Board

Issue to track design of a loopback expansion board for testing GTY/GTH interfaces to expansion board.

Requirements:

  • Loopback 4xGTY and 1xGTH TX to RX pairs. AC coupling caps will need to be added to meet GTH/GTY specification
  • To test clocking GTH/GTY from the expansion board, add an Si549 oscillator (I2C to PL of SoC) and fanout to the GCLKn_M2C_P/N pairs
  • Add resistor options for loading power rails, so we can test current capacity of connector
  • Must fit into existing wrsv4-rev0.0 expansion board connector/slot

DIOT loopback board can be used as reference: https://edms.cern.ch/ui/#!master/navigator/document?I:101523086:101523089:subDocs

Edited by Harvey Leicester
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