eive-tmtc/eive_tmtc/tmtc/acs/str_img_helper.py

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# -*- coding: utf-8 -*-
"""
@file str_img_helper.py
@brief Commanding of the star tracker image helper object which is responsible for uploading
and downloading images to/from the star tracker.
@details Images to uplaod must be previously transferred to the OBC with the CFDP protocol.
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Also downloaded images will be stored on the filesystem of the OBC and can be
transferred via CFDP.
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@author J. Meier
@date 29.11.2021
"""
import struct
from spacepackets.ecss.tc import PusTelecommand
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from tmtccmd.tc import DefaultPusQueueHelper
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from tmtccmd.util import ObjectIdU32
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class Commands:
UPLOAD_IMAGE = 0
DOWNLOAD_IMAGE = 1
class ImagePathDefs:
uploadFile = "/mnt/sd0/startracker/gemma.bin"
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def pack_str_img_helper_command(
object_id: ObjectIdU32, q: DefaultPusQueueHelper, op_code: str
):
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q.add_log_cmd(
f"Testing star tracker image helper object id: {object_id.as_hex_string}"
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)
if op_code == "0":
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q.add_log_cmd("Star tracker image helper: Upload image")
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command = (
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object_id.as_bytes
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+ struct.pack("!I", Commands.UPLOAD_IMAGE)
+ bytearray(ImagePathDefs.uploadFile, "utf-8")
)
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q.add_pus_tc(PusTelecommand(service=8, subservice=128, app_data=command))