nmigen_boards/upduino_v2.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 from .upduino_v1 import UpduinoV1Platform
   8
   9
  10 __all__ = ["UpduinoV2Platform"]
  11
  12
  13 class UpduinoV2Platform(UpduinoV1Platform):
  14     # Mostly identical to the V1 board, but it has an integrated
  15     # programmer and a 12MHz oscillator which is NC by default.
  16     resources = UpduinoV1Platform.resources + [
  17         # Solder pin 12 to the adjacent 'J8' osc_out pin to enable.
  18         Resource("clk12", 0, Pins("12", dir="i"),
  19                  Clock(12e6), Attrs(IO_STANDARD="SB_LVCMOS")),
  20     ]
  21
  22     def toolchain_program(self, products, name):
  23         iceprog = os.environ.get("ICEPROG", "iceprog")
  24         with products.extract("{}.bin".format(name)) as bitstream_filename:
  25             subprocess.check_call([iceprog, bitstream_filename])
  26
  27
  28 if __name__ == "__main__":
  29     from .test.blinky import *
  30     UpduinoV2Platform().build(Blinky(), do_program=True)