nmigen_boards/kcu105.py

   1 import os
   2 import subprocess
   3
   4 from nmigen.build import *
   5 from nmigen.vendor.xilinx_ultrascale import *
   6 from .resources import *
   7
   8
   9 __all__ = ["KCU105Platform"]
  10
  11
  12 class KCU105Platform(XilinxUltraScalePlatform):
  13     device      = "xcku040"
  14     package     = "ffva1156"
  15     speed       = "2"
  16     grade       = "e"
  17     default_clk = "clk125"
  18     resources   = [
  19         Resource("clk125", 0, DiffPairs("G10", "F10", dir="i"),
  20                  Clock(125e6), Attrs(IOSTANDARD="LVDS")),
  21
  22         *LEDResources(pins="AP8 H23 P20 P21 N22 M22 R23 P23",
  23                       attrs=Attrs(IOSTANDARD="LVCMOS18")),
  24     ]
  25     connectors  = []
  26
  27     def toolchain_program(self, products, name):
  28         openocd = os.environ.get("OPENOCD", "openocd")
  29         with products.extract("{}.bit".format(name)) as bitstream_filename:
  30             subprocess.check_call([openocd,
  31                 "-c", "source [find board/kcu105.cfg]; init; pld load 0 {}; exit"
  32                       .format(bitstream_filename)
  33             ])
  34
  35
  36 if __name__ == "__main__":
  37     from .test.blinky import *
  38     KCU105Platform().build(Blinky(), do_program=True)