Source code for spinnman.messages.scp.impl.router_init
from spinnman.exceptions import SpinnmanInvalidParameterException
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 RouterInit(AbstractSCPRequest):
""" A request to initialize the router on a chip
"""
def __init__(self, x, y, n_entries, table_address, base_address, app_id):
"""
:param x: The x-coordinate of the chip, between 0 and 255, \
this is not checked due to speed restrictions
:type x: int
:param y: The y-coordinate of the chip, between 0 and 255\
this is not checked due to speed restrictions
:type y: int
:param n_entries: The number of entries in the table, more than 0
:type n_entries: int
:param table_address: The allocated table address
:type table_address: int
:param base_address: The base_address containing the entries
:type base_address: int
:param app_id: The id of the application with which to associate the\
routes. If not specified, defaults to 0.
:type app_id: int
:raise spinnman.exceptions.SpinnmanInvalidParameterException:\
* If x is out of range
* If y is out of range
* If n_entries is 0 or less
* If table_address is not positive
* If base_address is not positive
"""
if n_entries < 1:
raise SpinnmanInvalidParameterException(
"n_entries", str(n_entries),
"Must be more than 0")
if base_address < 0:
raise SpinnmanInvalidParameterException(
"base_address", str(base_address),
"Must be a positive integer")
if table_address < 0:
raise SpinnmanInvalidParameterException(
"table_address", str(table_address),
"Must be a positive integer")
super(RouterInit, 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_RTR),
argument_1=((n_entries << 16) | (app_id << 8) | 2),
argument_2=table_address, argument_3=base_address)
[docs] def get_scp_response(self):
return CheckOKResponse("RouterInit", "CMD_RTR")