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