Source code for spinnman.messages.scp.impl.scp_write_link_request
from spinnman.messages.scp.abstract_messages.abstract_scp_request import AbstractSCPRequest
from spinnman.exceptions import SpinnmanInvalidParameterException
from spinnman.messages.sdp.sdp_header import SDPHeader
from spinnman.messages.sdp.sdp_flag import SDPFlag
from spinnman.messages.scp.scp_request_header import SCPRequestHeader
from spinnman.messages.scp.scp_command import SCPCommand
from spinnman.messages.scp.impl.scp_check_ok_response import SCPCheckOKResponse
[docs]class SCPWriteLinkRequest(AbstractSCPRequest):
""" A request to write memory on a neighbouring chip
"""
def __init__(self, x, y, cpu, link, base_address, data):
"""
:param x: The x-coordinate of the chip whose neighbour will be written \
to, between 0 and 255
:type x: int
:param y: The y-coordinate of the chip whose neighbour will be written \
to, between 0 and 255
:type y: int
:param cpu: The CPU core to use, normally 0 (or if a BMP, the board \
slot number)
:type cpu: int
:param link: The link number to write to between 0 and 5 (or if a BMP, \
the FPGA between 0 and 2)
:type link: int
:param base_address: The base_address to start writing to
:type base_address: int
:param data: Up to 256 bytes of data to write
:type data: bytearray
:raise spinnman.exceptions.SpinnmanInvalidParameterException:\
* If x is out of range
* If y is out of range
* If base_address is not positive
* If the length of data is 0 or more than 256
"""
if base_address < 0:
raise SpinnmanInvalidParameterException(
"base_address", str(base_address),
"Must be a positive integer")
if len(data) == 0:
raise SpinnmanInvalidParameterException(
"len(data)", str(len(data)), "Must be something to write")
if len(data) > 256:
raise SpinnmanInvalidParameterException(
"len(data)", str(len(data)),
"Must be less than 256 bytes")
super(SCPWriteLinkRequest, self).__init__(
SDPHeader(
flags=SDPFlag.REPLY_EXPECTED, destination_port=0,
destination_cpu=cpu, destination_chip_x=x,
destination_chip_y=y),
SCPRequestHeader(command=SCPCommand.CMD_LINK_WRITE),
argument_1=base_address, argument_2=len(data), argument_3=link,
data=data)
[docs] def get_scp_response(self):
return SCPCheckOKResponse("WriteMemory", "CMD_WRITE")