diff options
| -rw-r--r-- | nmigen_boards/icesugar.py | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/nmigen_boards/icesugar.py b/nmigen_boards/icesugar.py new file mode 100644 index 0000000..bb079be --- /dev/null +++ b/nmigen_boards/icesugar.py @@ -0,0 +1,64 @@ +import subprocess + +from nmigen.build import * +from nmigen.vendor.lattice_ice40 import * +from .resources import * + + +__all__ = ["ICESugarPlatform"] + + +class ICESugarPlatform(LatticeICE40Platform): + device = "iCE40UP5K" + package = "SG48" + default_clk = "clk12" + + resources = [ + Resource("clk12", 0, Pins("35", dir="i"), + Clock(12e6), Attrs(GLOBAL=True, IO_STANDARD="LVCMOS33")), + + *LEDResources(pins="40 41 39", invert=True, attrs=Attrs(IO_STANDARD="LVCMOS33")), + + # Semantic aliases + Resource("led_r", 0, PinsN("40", dir="o"), Attrs(IO_STANDARD="LVCMOS33")), + Resource("led_g", 0, PinsN("41", dir="o"), Attrs(IO_STANDARD="LVCMOS33")), + Resource("led_b", 0, PinsN("39", dir="o"), Attrs(IO_STANDARD="LVCMOS33")), + + *SwitchResources( + pins="18 19 20 21", + attrs=Attrs(IO_STANDARD="LVCMOS33") + ), + + UARTResource(0, + rx="4", tx="6", + attrs=Attrs(IO_STANDARD="LVTTL33", PULLUP=1) + ), + + *SPIFlashResources(0, + cs_n="16", clk="15", copi="14", cipo="17", wp_n="12", hold_n="13", + attrs=Attrs(IO_STANDARD="LVCMOS33") + ), + + Resource("usb", 0, + Subsignal("d_p", Pins("10", dir="io")), + Subsignal("d_n", Pins("9", dir="io")), + Subsignal("pullup", Pins("11", dir="o")), + Attrs(IO_STANDARD="LVCMOS33") + ), + ] + + connectors = [ + Connector("pmod", 0, "10 6 3 48 - - 9 4 2 47 - -"), # PMOD1 - IO pins shared by USB + Connector("pmod", 1, "46 44 42 37 - - 45 43 38 36 - -"), # PMOD2 + Connector("pmod", 2, "34 31 27 25 - - 32 28 26 23 - -"), # PMOD3 + Connector("pmod", 3, "21 20 19 18 - - - - - - - -"), # PMOD4 - IO pins used for switches via jumpers + ] + + def toolchain_program(self, products, name): + with products.extract("{}.bin".format(name)) as bitstream_filename: + subprocess.check_call(["icesprog", bitstream_filename]) + + +if __name__ == "__main__": + from .test.blinky import * + ICESugarPlatform().build(Blinky(), do_program=True) |