77 lines
3.0 KiB
Python
77 lines
3.0 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.xilinx_7series import *
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from .resources import *
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__all__ = ["AlchitryAuPlatform"]
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def find_loader():
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loader_prgm = os.environ.get("ALCHITRY_LOADER", shutil.which("loader"))
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if loader_prgm is None:
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raise EnvironmentError("Could not find Alchrity Loader. Place "
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"it directly in PATH or specify path explicitly via the "
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"ALCHITRY_LOADER environment variable")
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bridge_bin = os.environ.get("ALCHITRY_BRIDGE_BIN", os.path.join(os.path.dirname(loader_prgm), "au_loader.bin"))
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return (loader_prgm, bridge_bin)
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class AlchitryAuPlatform(Xilinx7SeriesPlatform):
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device = "XC7A35T" # Artix 7 33K LEs
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package = "FTG256"
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speed = "1"
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default_clk = "clk100"
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resources = [
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Resource("clk100", 0, Pins("N14", dir="i"),
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Clock(10e7), Attrs(IOSTANDARD="LVCMOS33")),
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# On-Board LED Array
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*LEDResources(
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pins="K13 K12 L14 L13 M16 M14 M12 N16",
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attrs=Attrs(IOSTANDARD="LVCMOS33")),
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Resource("usb", 0,
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Subsignal("usb_tx", Pins("P16", dir="o")),
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Subsignal("usb_rx", Pins("P15", dir="i")),
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Attrs(IOSTANDARD="LVCMOS33")
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),
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# TODO: This is untested
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DDR3Resource(0,
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rst_n="D13", clk_p="G14", clk_n="F14", clk_en="D15", cs_n="D16", we_n="E11", ras_n="D14", cas_n="D14",
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a="F12 G16 G15 E16 H11 G12 H16 H12 H16 H13 E12 H14 F13 J15",
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ba="E13 F15 E15",
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dqs_p="B15 A15", dqs_n="B9 A10",
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dq="A13 B16 B14 C11 C13 C16 C12 C14 D8 B11 C8 B10 A12 A8 B12 A9",
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dm="A14 C9", odt="G11",
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diff_attrs=Attrs(IOSTANDARD="LVDS"),
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attrs=Attrs(IOSTANDARD="LVCMOS15")),
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]
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connectors = [
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Connector("bank", 0, "T8 T7 T5 R5 R8 P8 L2 L3 J1 K1 H1 H2 G1 G2 K5 E6 "
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"T10 T9 R6 R7 P9 N9 K2 K3 J4 J5 H3 J3 H4 H5 N6 M6 "),
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Connector("bank", 1, "D1 E2 A2 B2 E1 F2 F3 F4 A3 B4 A4 A5 B5 B6 A7 B7 "
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"B1 C1 C2 C3 D3 E3 C4 D4 G4 G5 E5 F5 D5 D6 C6 C7 "),
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Connector("bank", 2, "T13 R13 T12 R12 R11 R10 N2 N3 P3 P4 M4 L4 N4 M5 L5 P5 "
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"P11 P10 N12 N11 P13 N13 M1 M2 P1 N1 R1 R2 T2 R3 T3 T4 "),
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Connector("bank", 3, "L14 L13 M12 N16 R16 R15 P14 M15 P16 P15 - - - - - - "
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"K13 K12 M16 M14 T16 T14 N14 - - - - - - - - - ")
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]
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def toolchain_program(self, products, name):
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(loader, bridge_bin) = find_loader()
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with products.extract("{}.bin".format(name)) as bitstream_filename:
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subprocess.check_call([loader, "-e", "-f", bitstream_filename,
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"-p", bridge_bin
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])
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if __name__ == "__main__":
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from .test.blinky import Blinky
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AlchitryAuPlatform().build(Blinky(), do_program=True)
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