eive-tmtc/pus_tc/ccsds_handler.py

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2021-11-24 15:56:25 +01:00
# -*- coding: utf-8 -*-
"""
@file ccsds_handler.py
@brief Test commanding of CCSDS Handler
@author J. Meier
@date 20.11.2021
"""
from tmtccmd.config.definitions import QueueCommands
from tmtccmd.tc.packer import TcQueueT
from spacepackets.ecss.tc import PusTelecommand
class CommandIds:
# Configures input rate of syrlinks to 400 Khz (results in downlink rate of 200 kbps)
SET_LOW_RATE = bytearray([0x0, 0x0, 0x0, 0x0])
# Configures input rate of syrlinks to 2000 Khz (results in downlink rate of 1000 kbps)
SET_HIGH_RATE = bytearray([0x0, 0x0, 0x0, 0x1])
# Enables the syrlinks transmitter (by using RS485 enables lines)
EN_TRANSMITTER = bytearray([0x0, 0x0, 0x0, 0x2])
# Disables the syrlinks transmitter (by using RS485 enables lines)
DIS_TRANSMITTER = bytearray([0x0, 0x0, 0x0, 0x3])
def pack_ccsds_handler_test(object_id: bytearray, tc_queue: TcQueueT, op_code: str) -> TcQueueT:
tc_queue.appendleft(
(QueueCommands.PRINT,
"Testing ccsds handler with object id: 0x" + object_id.hex())
)
if op_code == "0":
tc_queue.appendleft((QueueCommands.PRINT, "CCSDS Handler: Set low rate"))
command = object_id + CommandIds.SET_LOW_RATE
command = PusTelecommand(service=8, subservice=128, ssc=20, app_data=command)
tc_queue.appendleft(command.pack_command_tuple())
if op_code == "1":
tc_queue.appendleft((QueueCommands.PRINT, "CCSDS Handler: Set high rate"))
command = object_id + CommandIds.SET_HIGH_RATE
command = PusTelecommand(service=8, subservice=128, ssc=21, app_data=command)
tc_queue.appendleft(command.pack_command_tuple())
if op_code == "2":
tc_queue.appendleft((QueueCommands.PRINT, "CCSDS Handler: Enables the transmitter"))
command = object_id + CommandIds.EN_TRANSMITTER
command = PusTelecommand(service=8, subservice=128, ssc=21, app_data=command)
tc_queue.appendleft(command.pack_command_tuple())
if op_code == "3":
tc_queue.appendleft((QueueCommands.PRINT, "CCSDS Handler: Disables the transmitter"))
command = object_id + CommandIds.DIS_TRANSMITTER
command = PusTelecommand(service=8, subservice=128, ssc=21, app_data=command)
tc_queue.appendleft(command.pack_command_tuple())
return tc_queue