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| -rw-r--r-- | amaranth_boards/stepmxo2.py | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/amaranth_boards/stepmxo2.py b/amaranth_boards/stepmxo2.py new file mode 100644 index 0000000..41b7157 --- /dev/null +++ b/amaranth_boards/stepmxo2.py @@ -0,0 +1,99 @@ +import os +import argparse +import subprocess + + +from amaranth.build import * +from amaranth.vendor import LatticeMachXO2Platform +from .resources import * + + +__all__ = ["StepMXO2Platform"] + + +class StepMXO2Platform(LatticeMachXO2Platform): + package = "MG132" + speed = "4" + default_clk = "clk12" + device = "LCMXO2-4000HC" + resources = [ + Resource("clk12", 0, Pins("C1", dir="i"), Attrs(IO_TYPE="LVCMOS33"), + Clock(12e6)), + + UARTResource(0, rx="A3", tx="A2", attrs=Attrs(IO_TYPE="LVCMOS33"), + role="dce"), + + *LEDResources(pins="N13 M12 P12 M11 P11 N10 N9 P9", + invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")), + + RGBLEDResource(0, r="M2", g="N2", b="P2", + invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")), + RGBLEDResource(1, r="M3", g="N3", b="P4", + invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")), + + *ButtonResources(pins="L14 M13 M14 N14", invert=True, + attrs=Attrs(IO_TYPE="LVCMOS33")), + + *SwitchResources(pins="M7 M8 M9 M10", + attrs=Attrs(IO_TYPE="LVCMOS33")), + + Display7SegResource(0, + a="A10", b="C11", c="F2", d="E1", e="E2", f="A9", g="B9", dp="F1", + attrs=Attrs(IO_TYPE="LVCMOS33") + ), + Display7SegResource(1, + a="C12", b="B14", c="J1", d="H1", e="H2", f="B12", g="A11", + dp="K1", attrs=Attrs(IO_TYPE="LVCMOS33") + ), + Resource("display_7seg_ctrl", 0, + Subsignal("en", Pins("C9 A12", invert=True, dir="o")), + Attrs(IO_TYPE="LVCMOS33") + ) + ] + connectors = [ + # Special pins for MachXO2 hard IP. + # I2C: 2- SCL, 3- SDA + # SPI: 25- CS_N, 24- CLK, 22- COPI, 23- CIPO + Connector("gpio", 0, + # Left side of the board + # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 + " - C8 B8 E3 F3 G3 H3 I2 I3 K2 K3 L3 N5 P6 N6 P7 N7 P8 N8 -" + # Right side of the board + # 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 + " - P13 N4 M4 P3 J12 K13 K14 K12 J14 J13 H12 G14 G13 F14 F13 G12 F12 E12 -" + ), + ] + + # This board doesn't have an integrated programmer; the board's MCU + # implements a mass-storage device. You copy the JED file to it. + + # Workaround a STEP-MXO2-LPC parsing bug in the bootloader, as it doesn't + # like JED files processed by ddtcmd. Copy the original JED file unchanged + # to {{name}}-lpc.jed. Prefer this file. + @property + def command_templates(self): + templates = super().command_templates + cp_template = r"""{%- if syntax == "sh" -%} + cp {{name}}_impl/{{name}}_impl.jed {{name}}-lpc.jed + {%- else -%} + copy {{name}}_impl\{{name}}_impl.jed {{name}}-lpc.jed + {%- endif -%} + """ + + if self.family == "machxo2": + if self.toolchain == "Diamond": + return templates + [cp_template] + if self.toolchain == "Trellis": + return self.templates + assert False + assert False + + +if __name__ == "__main__": + from .test.blinky import * + + parser = argparse.ArgumentParser() + parser.add_argument('toolchain', nargs="?", choices=["Trellis", "Diamond"], default="Diamond") + args = parser.parse_args() + + StepMXO2Platform(toolchain=args.toolchain).build(Blinky(), do_program=False) |