Source code for spinnman.messages.scp.impl.scp_read_memory_words_request
from spinnman.messages.scp.abstract_messages.abstract_scp_request \
import AbstractSCPRequest
from spinnman.exceptions import SpinnmanInvalidParameterException
from spinnman.messages.sdp.sdp_flag import SDPFlag
from spinnman.messages.sdp.sdp_header import SDPHeader
from spinnman.messages.scp.scp_request_header import SCPRequestHeader
from spinnman.messages.scp.scp_command import SCPCommand
from spinnman.messages.scp.impl.scp_read_memory_words_response import \
SCPReadMemoryWordsResponse
[docs]class SCPReadMemoryWordsRequest(AbstractSCPRequest):
""" An SCP request to read a region of memory on a chip in words
"""
def __init__(self, x, y, base_address, size):
"""
:param x: The x-coordinate of the chip to read from, between 0 and 255
:type x: int
:param y: The y-coordinate of the chip to read from, between 0 and 255
:type y: int
:param base_address: The positive base address to start the read from
:type base_address: int
:param size: The number of words to read, between 1 and 64
:type size: int
:raise spinnman.exceptions.SpinnmanInvalidParameterException:
* If the chip coordinates are out of range
* If the base address is not a positive number
* If the size is out of range
"""
if base_address < 0:
raise SpinnmanInvalidParameterException(
"base_address", str(base_address),
"Must be a positive number")
if size < 1 or size > 64:
raise SpinnmanInvalidParameterException(
"size", str(size), "Must be between 1 and 64")
super(SCPReadMemoryWordsRequest, self).__init__(
SDPHeader(
flags=SDPFlag.REPLY_EXPECTED, destination_port=0,
destination_cpu=0, destination_chip_x=x,
destination_chip_y=y),
SCPRequestHeader(command=SCPCommand.CMD_READ),
argument_1=base_address, argument_2=size * 4, argument_3=2)
[docs] def get_scp_response(self):
""" See\
:py:meth:`spinnman.messages.scp.abstract_scp_request.AbstractSCPRequest.get_scp_response`
"""
return SCPReadMemoryWordsResponse()