nmigen_boards/dev/spi.py

   1 from nmigen.build import *
   2
   3
   4 __all__ = ["SPIResource"]
   5
   6
   7 def SPIResource(number, *, cs, clk, mosi, miso, int=None, reset=None, attrs=None):
   8     io = []
   9     io.append(Subsignal("cs", PinsN(cs, dir="o")))
  10     io.append(Subsignal("clk", Pins(clk, dir="o")))
  11     io.append(Subsignal("mosi", Pins(mosi, dir="o")))
  12     io.append(Subsignal("miso", Pins(miso, dir="i")))
  13     if int is not None:
  14         io.append(Subsignal("int", Pins(int, dir="i")))
  15     if reset is not None:
  16         io.append(Subsignal("reset", Pins(reset, dir="o")))
  17     if attrs is not None:
  18         io.append(attrs)
  19     return Resource("spi", number, *io)