116 lines
4.7 KiB
Python
116 lines
4.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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@file ccsds_handler.py
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@brief Test commanding of CCSDS Handler
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@author J. Meier
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@date 20.11.2021
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"""
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import struct
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from tmtccmd.config.definitions import QueueCommands
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from tmtccmd.tc.packer import TcQueueT
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from spacepackets.ecss.tc import PusTelecommand
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class CommandIds:
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# Configures input rate of syrlinks to 400 Khz (results in downlink rate of 200 kbps)
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SET_LOW_RATE = 0
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# Configures input rate of syrlinks to 2000 Khz (results in downlink rate of 1000 kbps)
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SET_HIGH_RATE = 1
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# Enables the syrlinks transmitter (by using RS485 enables lines)
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EN_TRANSMITTER = 2
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# Disables the syrlinks transmitter (by using RS485 enables lines)
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DIS_TRANSMITTER = 3
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# Sets an arbitrary bitrate. Normally only set low and set high rate commands should be
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# required
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ARBITRARY_BITRATE = 4
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ENABLE_TX_CLK_MANIPULATOR = 5
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DISABLE_TX_CLK_MANIPULATOR = 6
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# Tx data will be updated on rising edge of tx clock
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UPDATE_ON_RISING_EDGE = 7
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# Tx data will be updated on falling edge of tx clock
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UPDATE_ON_FALLING_EDGE = 8
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def pack_ccsds_handler_test(
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object_id: bytearray, tc_queue: TcQueueT, op_code: str
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) -> TcQueueT:
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tc_queue.appendleft(
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(
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QueueCommands.PRINT,
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"Testing CCSDS handler with object id: 0x" + object_id.hex(),
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)
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)
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if op_code == "0":
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tc_queue.appendleft((QueueCommands.PRINT, "CCSDS Handler: Set low rate"))
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command = object_id + struct.pack("!I", CommandIds.SET_LOW_RATE)
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command = PusTelecommand(service=8, subservice=128, ssc=20, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "1":
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tc_queue.appendleft((QueueCommands.PRINT, "CCSDS Handler: Set high rate"))
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command = object_id + struct.pack("!I", CommandIds.SET_HIGH_RATE)
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command = PusTelecommand(service=8, subservice=128, ssc=21, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "2":
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tc_queue.appendleft(
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(QueueCommands.PRINT, "CCSDS Handler: Enables the transmitter")
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)
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command = object_id + struct.pack("!I", CommandIds.EN_TRANSMITTER)
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command = PusTelecommand(service=8, subservice=128, ssc=22, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "3":
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tc_queue.appendleft(
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(QueueCommands.PRINT, "CCSDS Handler: Disables the transmitter")
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)
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command = object_id + struct.pack("!I", CommandIds.DIS_TRANSMITTER)
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command = PusTelecommand(service=8, subservice=128, ssc=23, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "4":
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tc_queue.appendleft(
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(QueueCommands.PRINT, "CCSDS Handler: Set arbitrary bitrate")
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)
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bitrate = int(input("Specify bit rate (bps): "))
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command = (
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object_id
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+ struct.pack("!I", CommandIds.ARBITRARY_BITRATE)
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+ struct.pack("!I", bitrate)
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)
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command = PusTelecommand(service=8, subservice=128, ssc=24, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "5":
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tc_queue.appendleft(
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(QueueCommands.PRINT, "CCSDS Handler: Enable tx clock manipulator")
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)
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command = object_id + struct.pack("!I", CommandIds.ENABLE_TX_CLK_MANIPULATOR)
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command = PusTelecommand(service=8, subservice=128, ssc=24, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "6":
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tc_queue.appendleft(
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(QueueCommands.PRINT, "CCSDS Handler: Disable tx clock manipulator")
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)
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command = object_id + struct.pack("!I", CommandIds.DISABLE_TX_CLK_MANIPULATOR)
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command = PusTelecommand(service=8, subservice=128, ssc=24, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "7":
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tc_queue.appendleft(
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(
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QueueCommands.PRINT,
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"CCSDS Handler: Update tx data on rising edge of tx clock",
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)
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)
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command = object_id + struct.pack("!I", CommandIds.UPDATE_ON_RISING_EDGE)
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command = PusTelecommand(service=8, subservice=128, ssc=24, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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if op_code == "8":
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tc_queue.appendleft(
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(
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QueueCommands.PRINT,
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"CCSDS Handler: Update tx data on falling edge of tx clock",
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)
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)
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command = object_id + struct.pack("!I", CommandIds.UPDATE_ON_FALLING_EDGE)
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command = PusTelecommand(service=8, subservice=128, ssc=24, app_data=command)
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tc_queue.appendleft(command.pack_command_tuple())
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return tc_queue
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