Source code for spinnman.messages.scp.impl.write_memory

# Copyright (c) 2017-2019 The University of Manchester
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from spinn_utilities.overrides import overrides
from spinnman.constants import address_length_dtype
from spinnman.messages.scp import SCPRequestHeader
from spinnman.messages.scp.abstract_messages import AbstractSCPRequest
from spinnman.messages.scp.enums import SCPCommand
from spinnman.messages.sdp import SDPFlag, SDPHeader
from .check_ok_response import CheckOKResponse


[docs]class WriteMemory(AbstractSCPRequest): """ A request to write memory on a chip """ __slots__ = [ "_data_to_write"] def __init__(self, x, y, base_address, data, cpu=0): """ :param int x: The x-coordinate of the chip, between 0 and 255; this is not checked due to speed restrictions :param int y: The y-coordinate of the chip, between 0 and 255; this is not checked due to speed restrictions :param int base_address: The base_address to start writing to the base address is not checked to see if its not valid :param data: between 1 and 256 bytes of data to write; this is not checked due to speed restrictions :type data: bytearray or bytes """ # pylint: disable=too-many-arguments size = len(data) super().__init__( SDPHeader( flags=SDPFlag.REPLY_EXPECTED, destination_port=0, destination_cpu=cpu, destination_chip_x=x, destination_chip_y=y), SCPRequestHeader(command=SCPCommand.CMD_WRITE), argument_1=base_address, argument_2=size, argument_3=address_length_dtype[ (base_address % 4), (size % 4)].value, data=None) self._data_to_write = data @property def bytestring(self): return super().bytestring + bytes(self._data_to_write)
[docs] @overrides(AbstractSCPRequest.get_scp_response) def get_scp_response(self): return CheckOKResponse("WriteMemory", "CMD_WRITE")