from amaranth import Elaboratable, Module, Signal
from amaranth.build import Platform

from platform_alchitry_pt_v2 import AlchitryPtV2Platform


class Blinky(Elaboratable):
    def elaborate(self, platform: Platform) -> Module:
        m = Module()

        # Get the LED pins
        led = platform.request("led", 0)

        # Create a counter for timing
        counter = Signal(24)

        # Increment counter every clock cycle
        m.d.sync += counter.eq(counter + 1)

        # Connect the MSB of counter to LED (blinks at ~12Hz at 100MHz)
        m.d.comb += led.o.eq(counter[-1])

        return m


if __name__ == "__main__":
    platform = AlchitryPtV2Platform()
    platform.build(Blinky(), do_program=True)