Function main

ci/autoresearch/test_lpc_ws2812_loopback.py:164–266

()

def main() -> int:
    p = argparse.ArgumentParser()
    p.add_argument("--port", default=DEFAULT_PORT)
    p.add_argument("--baud", default=DEFAULT_BAUD, type=int)
    p.add_argument(
        "--tx-pin",
        default=10,
        type=int,
        help="LPC845 GPIO PIO0_n driven by bit-bang WS2812 TX (default: P0_10, "
        "must match the compile-time constant in the sketch handler)",
    )
    p.add_argument(
        "--rx-pin",
        default=11,
        type=int,
        help="LPC845 GPIO PIO0_n routed to SCT input 0 for capture (default: P0_11)",
    )
    p.add_argument(
        "--capture-ms",
        default=50,
        type=int,
        help="SCT capture window per test (default: 50 ms)",
    )
    args = p.parse_args()

    if serial is None:
        print(
            "ERROR: pyserial not installed. Run: uv pip install pyserial",
            file=sys.stderr,
        )
        return 2

    print(f"[lpc-ws2812-loopback] opening {args.port} @ {args.baud}")
    try:
        s = serial.Serial(args.port, args.baud, timeout=0.1)
    except serial.SerialException as e:
        print(f"ERROR: could not open {args.port}: {e}", file=sys.stderr)
        return 2

    with s:
        s.dtr = False
        s.rts = False
        time.sleep(0.5)
        s.reset_input_buffer()
        time.sleep(2.0)
        s.reset_input_buffer()

        echo = send_rpc(s, "echo", args=[42], request_id=1, timeout=5.0)
        if not echo or echo.get("result") != 42:
            print(
                "ERROR: echo failed; is AutoResearchLpc flashed and running? "
                f"Got: {echo}",
                file=sys.stderr,
            )
            return 2
        print("[lpc-ws2812-loopback] echo ok")

        passes = 0