nmigen_boards/blackice.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__ = ["BlackIcePlatform"]
  10
  11
  12 class BlackIcePlatform(LatticeICE40Platform):
  13     device      = "iCE40HX4K"
  14     package     = "TQ144"
  15     default_clk = "clk100"
  16     resources   = [
  17         Resource("clk100", 0, Pins("129", dir="i"),
  18                  Clock(100e6), Attrs(GLOBAL=True, IO_STANDARD="SB_LVCMOS")),
  19
  20         *LEDResources(pins="71 67 68 70", attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
  21         # Semantic aliases
  22         Resource("led_b", 0, Pins("71", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
  23         Resource("led_g", 0, Pins("67", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
  24         Resource("led_o", 0, Pins("68", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
  25         Resource("led_r", 0, Pins("70", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
  26
  27         *ButtonResources(pins="63 64",       invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
  28         *SwitchResources(pins="37 38 39 41", invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
  29
  30         UARTResource(0,
  31             rx="88", tx="85",
  32             attrs=Attrs(IO_STANDARD="SB_LVCMOS", PULLUP=1),
  33             role="dce"
  34         ),
  35
  36         SRAMResource(0,
  37             cs="136", oe="45", we="120",
  38             a="137 138 139 141 142 42 43 44 73 74 75 76 115 116 117 118 119 78",
  39             d="135 134 130 128 125 124 122 121 61 60 56 55 52 49 48 47",
  40             attrs=Attrs(IO_STANDARD="SB_LVCMOS"),
  41         ),
  42     ]
  43     connectors  = [
  44         Connector("pmod", 0, " 94  91  88  85 - -  95  93  90  87 - -"),  # PMOD1/2
  45         Connector("pmod", 1, "105 102  99  97 - - 104 101  98  96 - -"),  # PMOD3/4
  46         Connector("pmod", 2, "143 114 112 107 - - 144 113 110 106 - -"),  # PMOD5/6
  47         Connector("pmod", 3, " 10   9   2   1 - -   8   7   4   3 - -"),  # PMOD7/8
  48         Connector("pmod", 4, " 20  19  16  15 - -  18  17  12  11 - -"),  # PMOD9/10
  49         Connector("pmod", 5, " 34  33  22  21 - -  32  31  26  25 - -"),  # PMOD11/12
  50         Connector("pmod", 6, " 29  28  24  23 - -"),  # PMOD13
  51         Connector("pmod", 7, " 71  67  68  70 - -"),  # PMOD14
  52     ]
  53
  54     def toolchain_program(self, products, name):
  55         with products.extract("{}.bin".format(name)) as bitstream_filename:
  56             subprocess.check_call(["cp", bitstream_filename, "/dev/ttyACM0"])
  57
  58
  59 if __name__ == "__main__":
  60     from .test.blinky import *
  61     BlackIcePlatform().build(Blinky(), do_program=True)