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Jens Janssen edited this page May 28, 2015 · 7 revisions

FPGA Firmware

A Xilinx project file (.xise) is available here.

Pin Assignments

  • RJ45 Jack / TLU Port
    Connect the EUDET TLU here.
  • LEMO Connectors
    Note: all inputs and outputs are using 3.3V CMOS logic levels
    RX0: External Trigger Input (also Trigger Input for TDC)
    RX1: Trigger Veto Input
    RX2: TDC Input
    TX0: Command (to FE) Busy
    TX1: Trigger Busy
    TX2: Loop-through TLU Trigger (from TLU Port)
  • Pin Header P9
    Not used.

Status LEDs

LED 5 (System and SRAM FIFO status):

  • flashing at 1Hz: OK
  • flashing at 3Hz: TLU connected to RJ45 jack (auto sensing)
  • off: DCM not locked
  • on: SRAM FIFO full

LED 1-4 (RX FIFO status):

  • flashing at 1Hz: OK
  • flashing at 3Hz: RX decoder error counter >0
  • off: no RX sync
  • on: RX FIFO overflow || RX FIFO full
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