nmigen_boards/machXO3_sk.py

   1 import os
   2 import subprocess
   3
   4 from nmigen.build import *
   5 from nmigen.vendor.lattice_machxo_2_3l import *
   6 from .resources import *
   7
   8
   9 __all__ = ["MachXO3SKPlatform"]
  10
  11
  12 class MachXO3SKPlatform(LatticeMachXO2Platform):
  13     device      = "LCMXO3LF-6900C"
  14     package     = "BG256"
  15     speed       = "5"
  16     default_clk = "clk12"
  17     resources   = [
  18         Resource("clk12", 0, Pins("C8", dir="i"),
  19             Clock(12e6), Attrs(IO_TYPE="LVCMOS33")
  20         ),
  21
  22         UARTResource(0,
  23             rx="A11", tx="C11", rts="F10", cts="D11", dtr="B11", dsr="A12", dcd="B13", ri="A14",
  24             attrs=Attrs(IO_TYPE="LVCMOS33"), role="dce"
  25         ), # need to solder R14-R18, R20-R22
  26
  27         *LEDResources(
  28             pins="H11 J13 J11 L12 K11 L13 N15 P16",
  29             invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")
  30         ), # D9..D2
  31
  32         *ButtonResources(pins="B3", invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")),
  33
  34         *SwitchResources(pins="N2 P1 M3 N1",
  35             invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")
  36         ), # SW2
  37
  38         *SPIFlashResources(0,
  39             cs="R5", clk="P6", mosi="T13", miso="T6",
  40             attrs=Attrs(IO_TYPE="LVCMOS33")
  41         ),
  42     ]
  43     connectors  = [
  44         Connector("j", 3, # J3
  45              "-  -  A13 C13 F8  B12 C12 E11 E10 D10 "
  46              "-  -  F9  C10 E8  E9  E7  D8  D7  C7  "
  47              "-  -  C5  D6  E6  C4  A10 F7  D9  B9  "
  48              "-  -  B6  B7  B5  A5  B4  A4  -   A3  "),
  49         Connector("j", 4, # J4
  50              "-  -  K12 K13 M14 N14 L14 N16 M15 M16 "
  51              "-  -  L15 L16 K14 K16 K15 J14 H14 J15 "
  52              "-  -  J16 H15 H16 G15 G16 F15 F16 E15 "
  53              "-  -  E16 E14 D16 C15 D14 F14 G14 B16 "),
  54         Connector("j", 6, # J6
  55              "-  -  T12 T14 R11 R13 T11 M11 P11 N10 "
  56              "-  -  T10 P10 R9  R10 T9  N9  P9  M8  "
  57              "-  -  T8  L8  P8  M6  R7  R8  P7  T7  "
  58              "-  -  L7  R6  N6  T5  R4  P4  T3  T4  "),
  59         Connector("j", 8, # J8
  60              "-  -  H6  N3  M2  M1  L2  L1  L3  L5  "
  61              "-  -  K4  J1  K1  J2  J3  H3  H2  H1  "
  62              "-  -  G2  G1  F2  F1  E2  E1  D2  D1  "
  63              "-  -  C2  C1  G3  B1  D3  E3  F3  F5  "),
  64     ]
  65
  66     def toolchain_program(self, products, name):
  67         openFPGALoader = os.environ.get("OPENFPGALOADER", "openFPGALoader")
  68         with products.extract("{}.bit".format(name)) as bitstream_filename:
  69             subprocess.check_call([openFPGALoader, bitstream_filename])
  70
  71
  72 if __name__ == "__main__":
  73     from .test.blinky import *
  74     MachXO3SKPlatform().build(Blinky(), do_program=True)