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import os | ||
import subprocess | ||
import shutil | ||
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from nmigen.build import * | ||
from nmigen.vendor.lattice_ecp5 import * | ||
from .resources import * | ||
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__all__ = ["OrangeCrabR0_2Platform"] | ||
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class OrangeCrabR0_2Platform(LatticeECP5Platform): | ||
device = "LFE5U-25F" | ||
package = "MG285" | ||
speed = "8" | ||
default_clk = "clk" | ||
resources = [ | ||
Resource("clk", 0, Pins("A9", dir="i"), | ||
Clock(48e6), Attrs(IO_STANDARD="LVCMOS33")), | ||
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# Used to reload FPGA configuration. | ||
# Can enter USB bootloader by assigning button 0 to program. | ||
Resource("program", 0, PinsN("V17", dir="o"), Attrs(IO_TYPE="LVCMOS33")), | ||
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RGBLEDResource(0, | ||
r="K4", g="M3", b="J3", invert=True, | ||
attrs=Attrs(IO_TYPE="LVCMOS33")), | ||
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*ButtonResources( | ||
pins={0: "J17" }, invert=True, | ||
attrs=Attrs(IO_TYPE="SSTL135_I")), | ||
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*SPIFlashResources(0, | ||
cs="U17", clk="U16", miso="T18", mosi="U18", wp="R18", hold="N18", | ||
attrs=Attrs(IO_STANDARD="LVCMOS33"), | ||
), | ||
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Resource("ddr3", 0, | ||
Subsignal("rst", PinsN("L18", dir="o")), | ||
Subsignal("clk", DiffPairs("J18", "K18", dir="o"), Attrs(IO_TYPE="SSTL135D_I")), | ||
Subsignal("clk_en", Pins("D18", dir="o")), | ||
Subsignal("cs", PinsN("A12", dir="o")), | ||
Subsignal("we", PinsN("B12", dir="o")), | ||
Subsignal("ras", PinsN("C12", dir="o")), | ||
Subsignal("cas", PinsN("D13", dir="o")), | ||
Subsignal("a", Pins("C4 D2 D3 A3 A4 D4 C3 B2 B1 D1 A7 C2 B6 C1 A2 C7", dir="o")), | ||
Subsignal("ba", Pins("P5 N3 M3", dir="o")), | ||
Subsignal("dqs", DiffPairs("G18 H17", "B15 A16", dir="io"), | ||
Attrs(IO_TYPE="SSTL135D_I", TERMINATION="OFF", | ||
DIFFRESISTOR="100")), | ||
Subsignal("dq", Pins("C17 D15 B17 C16 A15 B13 A17 A13 F17 F16 G15 F15 J16 C18" | ||
"H16 F18", dir="io"), Attrs(TERMINATION="75")), | ||
Subsignal("dm", Pins("G16 D16", dir="o")), | ||
Subsignal("odt", Pins("C13", dir="o")), | ||
Attrs(IO_TYPE="SSTL135_I", SLEWRATE="FAST") | ||
), | ||
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Resource("ddr3_pseudo_power", 0, | ||
# pseudo power pins, leave these at their default value | ||
Subsignal("vcc_virtual", PinsN("K16 D17 K15 K17 B18 C6", dir="o")), | ||
Subsignal("gnd_virtual", Pins("L15 L16", dir="o")), | ||
Attrs(IO_TYPE="SSTL135_II", SLEWRATE="FAST") | ||
), | ||
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Resource("adc", 0, | ||
Subsignal("ctrl", Pins("G1 F1", dir="o")), | ||
Subsignal("mux", Pins("F4 F3 F2 H1", dir="o")), | ||
Subsignal("sense_hi", Pins("H3", dir="i")), | ||
Subsignal("sense_lo", Pins("G3", dir="i")), | ||
Attrs(IO_TYPE="LVCMOS33") | ||
), | ||
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*SDCardResources(0, | ||
dat0="J1", dat1="K3", dat2="L3", dat3="M1", clk="K1", cmd="K2", cd="L1", | ||
attrs=Attrs(IO_TYPE="LVCMOS33", SLEWRATE="FAST") | ||
), | ||
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Resource("usb", 0, | ||
Subsignal("d_p", Pins("N1", dir="io")), | ||
Subsignal("d_m", Pins("M2", dir="io")), | ||
Subsignal("pullup", Pins("N2", dir="o")), | ||
Attrs(IO_TYPE="LVCMOS33") | ||
), | ||
] | ||
connectors = [ | ||
Connector("io", 0, { | ||
"0": "N17", | ||
"1": "M18", | ||
"5": "B10", | ||
"6": "B9", | ||
"9": "C8", | ||
"10": "B8", | ||
"11": "A8", | ||
"12": "H2", | ||
"13": "J2", | ||
"a0": "L4", | ||
"a1": "N3", | ||
"a2": "N4", | ||
"a3": "H4", | ||
"a4": "G4", | ||
"miso": "N15", | ||
"mosi": "N16", | ||
"sck": "R17", | ||
"scl": "C9", | ||
"sda": "C10" | ||
}) | ||
] | ||
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@property | ||
def required_tools(self): | ||
return super().required_tools + [ | ||
"dfu-suffix" | ||
] | ||
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@property | ||
def command_templates(self): | ||
return super().command_templates + [ | ||
r""" | ||
{{invoke_tool("dfu-suffix")}} | ||
-v 1209 -p 5af0 -a {{name}}.bit | ||
""" | ||
] | ||
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def toolchain_prepare(self, fragment, name, **kwargs): | ||
overrides = dict(ecppack_opts="--compress --freq 38.8") | ||
overrides.update(kwargs) | ||
return super().toolchain_prepare(fragment, name, **overrides) | ||
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def toolchain_program(self, products, name): | ||
dfu_util = os.environ.get("DFU_UTIL", "dfu-util") | ||
with products.extract("{}.bit".format(name)) as bitstream_filename: | ||
subprocess.check_call([dfu_util, "-D", bitstream_filename]) | ||
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if __name__ == "__main__": | ||
from .test.blinky import * | ||
OrangeCrabR0_2Platform().build(Blinky(), do_program=True) |