A Python library and set of tools for interacting with NASA Core Flight System (cFS).

Modules:

• pycfs: Tools for constructing messages and communicating with a cFS system

Scripts:

• cfssh: The cFS Shell

Load the message ids and structs from a given bundle and set of apps:

import pycfs
MID,CC,MSG = pycfs.load_bundle(path, mission, apps):

Afterwards, the objects MID, CC, and MSG will be populated with the relevant definitions.

cFSSh ("see-fish") is an interactive Python shell for interacting with NASA Core Flight System (cFS) executables.

For example cfssh can be used to construct and send a UDP command to the TO_LAB app:

cfssh --bundle . --mission sample --target linux-x86-cpu1 to_lab ci_lab
In [1]: cfac = CommandFactory('little')
In [2]: cmdr = UDPCommander('10.42.0.150',1234)
In [3]: cmdr.send(cfac.pack(MID.TO_LAB_CMD_MID, CC.TO_OUTPUT_ENABLE_CC,MSG.TO_LAB_EnableOutput_Payload_t, dest_IP='10.42.0.1'))

The fields of a given message can also be inspected like the following:

In [3]: MSG.TO_LAB_EnableOutput_Payload_t.members
Out[3]: [(u'dest_IP', Type(u'char', [16]), None)]

The name of a message ID can also be looked up in reverse from its code:

In [4]: MID.inv(0x1880)
Out[4]: u'TO_LAB_CMD_MID'

python -m pip install .