Source code for sensirion_shdlc_sfc5xxx.commands.slave_address

# -*- 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 0.8.2
# Product:      SFC5xxx
# 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 Sfc5xxxCmdSlaveAddressBase(ShdlcCommand): """ SHDLC command 0x90: "Slave Address". """
[docs] def __init__(self, *args, **kwargs): """ Constructor. """ super(Sfc5xxxCmdSlaveAddressBase, self).__init__( 0x90, *args, **kwargs)
[docs]class Sfc5xxxCmdGetSlaveAddress(Sfc5xxxCmdSlaveAddressBase): """ Get Slave Address Command Get the SHDLC slave address of the device. """
[docs] def __init__(self): """ Constructor. """ super(Sfc5xxxCmdGetSlaveAddress, self).__init__( data=[], max_response_time=0.01, post_processing_time=0.0, min_response_length=1, max_response_length=1 )
[docs] @staticmethod def interpret_response(data): """ :return: The current slave address of the device. :rtype: int """ slave_address = int(unpack(">B", data[0:1])[0]) # uint8 return slave_address
[docs]class Sfc5xxxCmdSetSlaveAddress(Sfc5xxxCmdSlaveAddressBase): """ Set Slave Address Command Set the SHDLC slave address of the device. .. note:: The slave address is stored in non-volatile memory of the device and thus persists after a device reset. So the next time connecting to the device, you have to use the new address. When changing the address of a slave, make sure there isn't already a slave with that address on the same bus! In that case you would get communication issues which can only be fixed by disconnecting one of the slaves. """
[docs] def __init__(self, slave_address): """ Constructor. :param int slave_address: The new slave address to set. """ super(Sfc5xxxCmdSetSlaveAddress, self).__init__( data=b"".join([pack(">B", slave_address)]), max_response_time=0.01, post_processing_time=0.0, min_response_length=0, max_response_length=0 )