nmigen_boards/fomu_hacker.py

   1 import os
   2 import subprocess
   3
   4 from nmigen.build import *
   5 from nmigen.vendor.lattice_ice40 import *
   6 from .dev import *
   7
   8
   9 __all__ = ["FomuHackerPlatform"]
  10
  11
  12 class FomuHackerPlatform(LatticeICE40Platform):
  13     device      = "iCE40UP5K"
  14     package     = "UWG30"
  15     default_clk = "clk48"
  16     resources   = [
  17         Resource("clk48", 0, Pins("F5", dir="i"),
  18                  Clock(48e6), Attrs(GLOBAL=True, IO_STANDARD="SB_LVCMOS")),
  19
  20         Resource("user_led", 0, PinsN("A5", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
  21         Resource("rgb_led", 0,
  22             Subsignal("r", PinsN("C5")),
  23             Subsignal("g", PinsN("B5")),
  24             Subsignal("b", PinsN("A5")),
  25             Attrs(IO_STANDARD="SB_LVCMOS"),
  26         ),
  27
  28         Resource("usb", 0,
  29             Subsignal("d_p", Pins("A4")),
  30             Subsignal("d_n", Pins("A2")),
  31             Subsignal("pullup", Pins("D5")),
  32             Attrs(IO_STANDARD="SB_LVCMOS"),
  33         ),
  34
  35         *SPIFlashResources(0,
  36             cs="C1", clk="D1", mosi="F1", miso="E1",
  37             attrs=Attrs(IO_STANDARD="SB_LVCMOS"),
  38         ),
  39     ]
  40
  41     connectors = [
  42         Connector("pin", 0, "F4"),
  43         Connector("pin", 1, "E5"),
  44         Connector("pin", 2, "E4"),
  45         Connector("pin", 3, "F2"),
  46     ]
  47
  48     def toolchain_program(self, products, name):
  49         dfu_util = os.environ.get("DFU_UTIL", "dfu-util")
  50         with products.extract("{}.bin".format(name)) as bitstream_filename:
  51             subprocess.check_call([dfu_util, "-D", bitstream_filename])
  52
  53
  54 if __name__ == "__main__":
  55     from ._blinky import Blinky
  56     FomuHackerPlatform().build(Blinky(), do_program=True)