nmigen_boards/ice40_hx1k_blink_evn.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__ = ["ICE40HX1KBlinkEVNPlatform"]
  10
  11
  12 class ICE40HX1KBlinkEVNPlatform(LatticeICE40Platform):
  13     device      = "iCE40HX1K"
  14     package     = "VQ100"
  15     default_clk = "clk3p3"
  16     resources   = [
  17         Resource("clk3p3", 0, Pins("13", dir="i"), Clock(3.3e6),
  18                  Attrs(GLOBAL=True, IO_STANDARD="SB_LVCMOS33")),
  19
  20         Resource("user_led", 0, Pins("59", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  21         Resource("user_led", 1, Pins("56", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  22         Resource("user_led", 2, Pins("53", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  23         Resource("user_led", 3, Pins("51", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  24
  25         Resource("user_btn", 0, Pins("60"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  26         Resource("user_btn", 1, Pins("57"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  27         Resource("user_btn", 2, Pins("54"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  28         Resource("user_btn", 3, Pins("52"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  29
  30         *SPIFlashResources(0,
  31             cs="49", clk="48", mosi="45", miso="46",
  32             attrs=Attrs(IO_STANDARD="SB_LVCMOS33")
  33         ),
  34     ]
  35     connectors  = [
  36         Connector("pmod",  1, "10  9  8  7 - -  4  3  2  1 - -"), # J1
  37         Connector("pmod",  5, "40 42 62 64 - - 37 41 63 45 - -"), # J5
  38         Connector("pmod",  6, "25 24 21 20 - - 26 27 28 33 - -"), # J6
  39         Connector("pmod", 11, "49 45 46 48 - -"), # J11
  40         Connector("pmod", 12, "59 56 53 51 - -"), # J12
  41     ]
  42
  43     def toolchain_program(self, products, name):
  44         iceburn = os.environ.get("ICEBURN", "iCEburn")
  45         with products.extract("{}.bin".format(name)) as bitstream_filename:
  46             subprocess.check_call([iceburn, "-evw", bitstream_filename])
  47
  48
  49 if __name__ == "__main__":
  50     from ._blinky import Blinky
  51     ICE40HX1KBlinkEVNPlatform().build(Blinky(), do_program=True)