# Pastebin RWNsG5LI
$ make opsis_sim                                                                                                                                                                                                                                                                                                                                                   
./opsis_sim.py --nocompile-gateware --with-ethernet --cpu-type or1k
no firmware found, won't work on hardware
Traceback (most recent call last):
  File "./opsis_sim.py", line 119, in <module>
    main()
  File "./opsis_sim.py", line 111, in main
    soc = cls(**soc_sdram_argdict(args))
  File "./opsis_sim.py", line 95, in __init__
    self.submodules.ethphy = LiteEthPHYModel(self.platform.request("eth"))
  File "/usr/local/google/home/tansell/foss/timvideos/hdmi2usb/opsis-soc/third_party/liteeth/liteeth/phy/model.py", line 36, in __init__
    pads.source_valid.eq(self.sink.valid),
AttributeError: 'Record' object has no attribute 'source_valid'
make: *** [opsis_sim] Error 1