DownloadAcquisitionExample.py

from pathlib import Path
import platform
import sys


API_BASE_DIR = "PLUX-API-Python3"
API_BASE_PATH = Path(__file__).resolve().parent / API_BASE_DIR


def _python_version():
    """Return the Python major and minor version as integers."""
    major, minor = platform.python_version_tuple()[:2]
    return int(major), int(minor)


def _is_arm_64(machine, architecture):
    """Return whether the current machine should be treated as ARM 64-bit."""
    return machine.startswith("aarch64") or (
        machine.startswith("arm") and architecture == "64"
    )


def _available_api_dirs(api_base_path):
    """Return the available API directories for diagnostic purposes."""
    if not api_base_path.is_dir():
        return []

    return sorted(path.name for path in api_base_path.iterdir() if path.is_dir())


def _first_existing_api_dir(candidates):
    """Return the first candidate API directory that exists."""
    for candidate in candidates:
        if (API_BASE_PATH / candidate).is_dir():
            return candidate

    raise ValueError(
        "Unsupported platform/Python combination: "
        f"system={platform.system()}, machine={platform.machine().lower()}, "
        f"architecture={platform.architecture()[0][:2]}, "
        f"python={platform.python_version()}, "
        f"attempted_api_dirs={', '.join(candidates)}, "
        f"available_api_dirs={', '.join(_available_api_dirs(API_BASE_PATH)) or 'none'}"
    )


def _resolve_api_dir():
    """Resolve the PLUX API directory for the current platform."""
    system = platform.system()
    machine = platform.machine().lower()
    architecture = platform.architecture()[0][:2]
    major, minor = _python_version()

    if not API_BASE_PATH.is_dir():
        raise ValueError(f"API base directory does not exist: {API_BASE_PATH}")

    if major != 3:
        raise ValueError(
            f"Unsupported Python major version: {platform.python_version()}. "
            "Python 3 is required."
        )

    version_suffix = f"{major}{minor}"

    if system == "Windows":
        return _first_existing_api_dir([f"Win{architecture}_{version_suffix}"])

    if system == "Darwin":
        if machine == "x86_64":
            return _first_existing_api_dir(
                [f"MacOS/Intel{version_suffix}", "MacOS"]
            )

        if machine == "arm64":
            return _first_existing_api_dir([f"M1_{version_suffix}"])

        raise ValueError(f"Unsupported macOS architecture: {machine}")

    if system == "Linux":
        if machine.startswith("arm") and architecture == "32":
            candidates = [f"LinuxARM32_{version_suffix}"]

            if minor < 11:
                candidates.append("LinuxARM32")

            return _first_existing_api_dir(candidates)

        if _is_arm_64(machine, architecture):
            return _first_existing_api_dir([f"LinuxARM64_{version_suffix}"])

        if architecture == "64":
            return _first_existing_api_dir([f"Linux64_{version_suffix}", "Linux64"])

        raise ValueError(
            f"Unsupported Linux architecture: machine={machine}, "
            f"architecture={architecture}"
        )

    raise ValueError(f"Unsupported operating system: {system}")


try:
    api_dir = _resolve_api_dir()
    api_path = API_BASE_PATH / api_dir

    sys.path.append(str(api_path))
    print(f"Loaded API: {api_path}")

except ValueError as error:
    print(error)
    sys.exit(1)


import plux
import datetime

class NewDevice(plux.MemoryDev):
    def __init__(self, address):
        plux.MemoryDev.__init__(address)

    def onSessionRawFrame(self, nSeq, data):  # onRawFrame takes three arguments
        if nSeq % 2000 == 0:
            print(nSeq, *data)


# example routines


def exampleDownloadAcquisition(
    address="BTH00:07:80:4D:2E:76",
):
    """
    Example of the actions needed to download a data recording that was stored in the Device Memory Card.
    """
    device = NewDevice(address)

    # Retrieve the list of Sessions stored in the Memory Card.
    list_of_sessions = device.getSessions()
    
    # Start downloading the last one.
    device.replaySession(list_of_sessions[-1].startTime)
    
    device.close()


if __name__ == "__main__":
    # Use arguments from the terminal (if any) as the first arguments and use the remaining default values.
    exampleDownloadAcquisition(*sys.argv[1:])