123 lines
4.2 KiB
Python
123 lines
4.2 KiB
Python
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import os
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import subprocess
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import shutil
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from amaranth.build import *
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from amaranth.vendor.lattice_ecp5 import *
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from .resources import *
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__all__ = ["OrangeCrabR0_1Platform"]
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class OrangeCrabR0_1Platform(LatticeECP5Platform):
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device = "LFE5U-25F"
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package = "MG285"
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speed = "8"
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default_clk = "clk"
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resources = [
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Resource("clk", 0, Pins("A9", dir="i"),
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Clock(48e6), Attrs(IO_TYPE="LVCMOS33")),
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# Used to reload FPGA configuration.
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# Can enter USB bootloader by assigning button 0 to program.
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Resource("program", 0, PinsN("R16", dir="o"), Attrs(IO_TYPE="LVCMOS33")),
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RGBLEDResource(0,
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r="V17", g="T17", b="J3", invert=True,
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attrs=Attrs(IO_TYPE="LVCMOS33")),
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*SPIFlashResources(0,
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cs_n="U17", clk="U16", cipo="T18", copi="U18", wp_n="R18", hold_n="N18",
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attrs=Attrs(IO_TYPE="LVCMOS33"),
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),
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Resource("ddr3", 0,
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Subsignal("rst", PinsN("B1", dir="o")),
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Subsignal("clk", DiffPairs("J18", "K18", dir="o"), Attrs(IO_TYPE="SSTL135D_I")),
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Subsignal("clk_en", Pins("D6", dir="o")),
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Subsignal("cs", PinsN("A12", dir="o")),
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Subsignal("we", PinsN("B12", dir="o")),
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Subsignal("ras", PinsN("C12", dir="o")),
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Subsignal("cas", PinsN("D13", dir="o")),
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Subsignal("a", Pins("A4 D2 C3 C7 D3 D4 D1 B2 C1 A2 A7 C2 C4", dir="o")),
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Subsignal("ba", Pins("B6 B7 A6", dir="o")),
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Subsignal("dqs", DiffPairs("G18 H17", "B15 A16", dir="io"),
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Attrs(IO_TYPE="SSTL135D_I", TERMINATION="OFF",
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DIFFRESISTOR="100")),
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Subsignal("dq", Pins("F17 F16 G15 F15 J16 C18 H16 F18 C17 D15 B17 C16 A15 B13 A17 A13", dir="io"),
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Attrs(TERMINATION="75")),
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Subsignal("dm", Pins("G16 D16", dir="o")),
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Subsignal("odt", Pins("C13", dir="o")),
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Attrs(IO_TYPE="SSTL135_I", SLEWRATE="FAST")
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),
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Resource("ddr3_pseudo_power", 0,
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# pseudo power pins, leave these at their default value
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Subsignal("vcc_virtual", PinsN("A3 B18 C6 C15 D17 D18 K15 K16 K17", dir="o")),
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Subsignal("gnd_virtual", Pins("L15 L16 L18", dir="o")),
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Attrs(IO_TYPE="SSTL135_II", SLEWRATE="FAST")
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),
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*SDCardResources(0,
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dat0="J1", dat1="K3", dat2="L3", dat3="M1", clk="K1", cmd="K2", cd="L1",
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attrs=Attrs(IO_TYPE="LVCMOS33", SLEWRATE="FAST")
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),
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DirectUSBResource(0, d_p="N1", d_n="M2", pullup="N2", attrs=Attrs(IO_TYPE="LVCMOS33"))
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]
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connectors = [
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Connector("io", 0, {
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"0": "N17",
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"1": "M18",
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"5": "B10",
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"6": "B9",
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"9": "C8",
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"10": "B8",
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"11": "A8",
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"12": "H2",
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"13": "J2",
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"cipo": "N15",
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"copi": "N16",
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"sck": "R17",
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"scl": "C9",
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"sda": "C10"
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}),
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Connector("mcu", 0, {
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"0": "A10",
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"1": "C11",
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"2": "A11",
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"3": "B11",
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}),
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]
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@property
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def required_tools(self):
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return super().required_tools + [
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"dfu-suffix"
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]
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@property
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def command_templates(self):
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return super().command_templates + [
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r"""
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{{invoke_tool("dfu-suffix")}}
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-v 1209 -p 5af0 -a {{name}}.bit
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"""
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]
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def toolchain_prepare(self, fragment, name, **kwargs):
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overrides = dict(ecppack_opts="--compress --freq 38.8")
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overrides.update(kwargs)
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return super().toolchain_prepare(fragment, name, **overrides)
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def toolchain_program(self, products, name):
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dfu_util = os.environ.get("DFU_UTIL", "dfu-util")
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with products.extract("{}.bit".format(name)) as bitstream_filename:
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subprocess.check_call([dfu_util, "-D", bitstream_filename])
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if __name__ == "__main__":
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from .test.blinky import *
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OrangeCrabR0_1Platform().build(Blinky(), do_program=True)
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