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 .resources 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         *LEDResources(pins="A5", invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
  21         RGBLEDResource(0,
  22             r="C5", g="B5", b="A5", invert=True,
  23             attrs=Attrs(IO_STANDARD="SB_LVCMOS")
  24         ),
  25
  26         Resource("usb", 0,
  27             Subsignal("d_p", Pins("A4")),
  28             Subsignal("d_n", Pins("A2")),
  29             Subsignal("pullup", Pins("D5")),
  30             Attrs(IO_STANDARD="SB_LVCMOS"),
  31         ),
  32
  33         *SPIFlashResources(0,
  34             cs="C1", clk="D1", mosi="F1", miso="E1",
  35             attrs=Attrs(IO_STANDARD="SB_LVCMOS"),
  36         ),
  37     ]
  38
  39     connectors = [
  40         Connector("pin", 0, "F4"),
  41         Connector("pin", 1, "E5"),
  42         Connector("pin", 2, "E4"),
  43         Connector("pin", 3, "F2"),
  44     ]
  45
  46     def toolchain_program(self, products, name):
  47         dfu_util = os.environ.get("DFU_UTIL", "dfu-util")
  48         with products.extract("{}.bin".format(name)) as bitstream_filename:
  49             subprocess.check_call([dfu_util, "-D", bitstream_filename])
  50
  51
  52 if __name__ == "__main__":
  53     from .test.blinky import *
  54     FomuHackerPlatform().build(Blinky(), do_program=True)