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 .dev 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="1", IO_STANDARD="SB_LVCMOS33")
  19         ),
  20
  21         Resource("user_led", 0, Pins("71", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  22         Resource("user_led", 1, Pins("67", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  23         Resource("user_led", 2, Pins("68", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  24         Resource("user_led", 3, Pins("70", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  25         # Color aliases
  26         Resource("user_ledb", 0, Pins("71", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  27         Resource("user_ledg", 0, Pins("67", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  28         Resource("user_ledo", 0, Pins("68", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  29         Resource("user_ledr", 0, Pins("70", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  30
  31         Resource("user_btn", 0, PinsN("63", dir="i"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  32         Resource("user_btn", 1, PinsN("64", dir="i"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  33
  34         Resource("user_sw", 0, PinsN("37", dir="i"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  35         Resource("user_sw", 1, PinsN("38", dir="i"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  36         Resource("user_sw", 2, PinsN("39", dir="i"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  37         Resource("user_sw", 3, PinsN("41", dir="i"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  38
  39         UARTResource(0,
  40             rx="88", tx="85", rts="91", cts="94",
  41             attrs=Attrs(IO_STANDARD="SB_LVCMOS33", PULLUP="1")
  42         ),
  43
  44         Resource("sram", 0,
  45             Subsignal("address", Pins(
  46                 "137 138 139 141 142 42 43 44 73 74 75 76 115 116 117 118 119 78",
  47                 dir="o"
  48             )),
  49             Subsignal("data", Pins(
  50                 "135 134 130 128 125 124 122 121 61 60 56 55 52 49 48 47",
  51                 dir="io"
  52             )),
  53             Subsignal("oe", PinsN("45", dir="o")),
  54             Subsignal("we", PinsN("120", dir="o")),
  55             Subsignal("cs", PinsN("136", dir="o")),
  56             Attrs(IO_STANDARD="SB_LVCMOS33"),
  57         ),
  58     ]
  59     connectors  = [
  60         Connector("pmod", 0, " 94  91  88  85 - -  95  93  90  87 - -"),  # PMOD1/2
  61         Connector("pmod", 1, "105 102  99  97 - - 104 101  98  96 - -"),  # PMOD3/4
  62         Connector("pmod", 2, "143 114 112 107 - - 144 113 110 106 - -"),  # PMOD5/6
  63         Connector("pmod", 3, " 10   9   2   1 - -   8   7   4   3 - -"),  # PMOD7/8
  64         Connector("pmod", 4, " 20  19  16  15 - -  18  17  12  11 - -"),  # PMOD9/10
  65         Connector("pmod", 5, " 34  33  22  21 - -  32  31  26  25 - -"),  # PMOD11/12
  66         Connector("pmod", 6, " 29  28  24  23 - -"),  # PMOD13
  67         Connector("pmod", 7, " 71  67  68  70 - -"),  # PMOD14
  68     ]
  69
  70     def toolchain_program(self, products, name):
  71         with products.extract("{}.bin".format(name)) as bitstream_filename:
  72             subprocess.check_call(["cp", bitstream_filename, "/dev/ttyACM0"])
  73
  74
  75 if __name__ == "__main__":
  76     from ._blinky import build_and_program
  77     build_and_program(BlackIcePlatform)