Source code for sensirion_shdlc_sensorbridge.commands.spi_transceive

# -*- coding: utf-8 -*-
# (c) Copyright 2020 Sensirion AG, Switzerland

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#
#     THIS FILE IS AUTOMATICALLY GENERATED AND MUST NOT BE EDITED MANUALLY!
#
# Generator:    sensirion-shdlc-interface-generator 0.5.1
# Product:      Sensor Bridge
# Version:      0.1.0
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# flake8: noqa

from __future__ import absolute_import, division, print_function
from sensirion_shdlc_driver.command import ShdlcCommand
from struct import pack, unpack

import logging
log = logging.getLogger(__name__)


[docs]class SensorBridgeCmdSpiTransceiveBase(ShdlcCommand): """ SHDLC command 0x61: "Spi Transceive". """
[docs] def __init__(self, *args, **kwargs): super(SensorBridgeCmdSpiTransceiveBase, self).__init__( 0x61, *args, **kwargs)
[docs]class SensorBridgeCmdSpiTransceive(SensorBridgeCmdSpiTransceiveBase):
[docs] def __init__(self, port, length, tx_data): """ Spi Transceive Command Transceives an SPI frame on a certain port. :param int port: The port where the transceive should be executed: - 0x00: Port 1 - 0x01: Port 2 :param int length: Count of bytes to send. This amount of bytes has to be attached to the command. :param bytes tx_data: Bytes to send. """ super(SensorBridgeCmdSpiTransceive, self).__init__( data=b"".join([pack(">B", port), pack(">I", length), bytes(bytearray(tx_data))]), max_response_time=5.0, post_processing_time=0.0, min_response_length=0, max_response_length=255 )
[docs] @staticmethod def interpret_response(data): """ :return: Received bytes. :rtype: bytes """ rx_data = bytes(data[0:]) # bytearray return rx_data