nmigen_boards/icestick.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 from .dev.uart import IrDAResource
   8
   9
  10 __all__ = ["ICEStickPlatform"]
  11
  12
  13 class ICEStickPlatform(LatticeICE40Platform):
  14     device     = "iCE40HX1K"
  15     package    = "TQ144"
  16     resources  = [
  17         Resource("clk12", 0, Pins("21", dir="i"),
  18                  Clock(12e6), Attrs(GLOBAL="1", IO_STANDARD="SB_LVCMOS33")),
  19
  20         Resource("user_led", 0, Pins("99", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  21         Resource("user_led", 1, Pins("98", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  22         Resource("user_led", 2, Pins("97", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  23         Resource("user_led", 3, Pins("96", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  24         Resource("user_led", 4, Pins("95", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS33")),
  25
  26         UARTResource(0,
  27             rx="9", tx="8", rts="7", cts="4", dtr="3", dsr="2", dcd="1",
  28             attrs=Attrs(IO_STANDARD="SB_LVTTL", PULLUP="1")
  29         ),
  30
  31         IrDAResource(0,
  32             rx="106", tx="105", sd="107",
  33             attrs=Attrs(IO_STANDARD="SB_LVCMOS33")
  34         ),
  35
  36         *SPIFlashResources(0,
  37             cs="71", clk="70", mosi="67", miso="68",
  38             attrs=Attrs(IO_STANDARD="SB_LVCMOS33")
  39         ),
  40     ]
  41     connectors = [
  42         Connector("pmod", 0, "78 79 80 81 - - 87 88 90 91 - -"),  # J2
  43
  44         Connector("j", 1, "- - 112 113 114 115 116 117 118 119"), # J1
  45         Connector("j", 3, "- -  62  61  60  56  48  47  45  44"), # J3
  46     ]
  47
  48     def toolchain_program(self, products, name):
  49         iceprog = os.environ.get("ICEPROG", "iceprog")
  50         with products.extract("{}.bin".format(name)) as bitstream_filename:
  51             subprocess.check_call([iceprog, bitstream_filename])
  52
  53
  54 if __name__ == "__main__":
  55     from ._blinky import build_and_program
  56     build_and_program(ICEStickPlatform, "clk12")