Glossary
- Baud Rate
The speed of messages sent over a communications bus. It is not directly linked but typically infers the interval that messages are sent or resent in a protocol.
- C3
Command, communication, and control board. See https://github.com/oresat/oresat-c3
- CAN
Control area network. A message bus for embedded systems.
- CAN ID
CAN Identifier. This is the 11-bit CAN message identifier which is at the beginning of every CAN message on the bus.
- CANopen
A communication protocol and device profile specification for a CAN bus defined by CAN in Automation. More info at https://can-cia.org/
- CFC
Cirrus Flux Camera. One of OreSat1 payloads and a Linux board.
- COB ID
Communication object identifier.
- CubeSat
A CubeSat is small satellite is made up of multiples of 10cm × 10cm × 10cm cubic units
- Daemon
A long running process on Linux, which runs in the background.
- DLC
Data Length Code. The operational code dictating the size of the data frame.
- EDS
Electronic Data Sheet. This is an INI style or XML style formatted file.
- MTU
Maximum Transmission Unit. The maximum size of a packet. In context of this application, the MTU of a CAN packet is 108 bytes for a maximum-data-frame size of 64 bits (8 bytes).
- NCurses
New Curses. An application programming interface for manipulating the standard terminal. Used for making terminal-based applications without the need for a GUI.
- OLM
OreSat Linux Manager. The front end daemon for all OreSat Linux boards. It converts CANopen message into DBus messages and vice versa. See https://github.com/oresat/oresat-linux-manager
- OreSat
PSAS’s open source CubeSat project. See their homepage for more details.
- OreSat0
A 1U cube-satellite made and maintained by OreSat.
- OreSat1:
A 2U cube-satellite made and maintained by OreSat.
- PDO
Process Data Object. Inputs and outputs. Values of type rotational speed, voltage, frequency, electric current, etc.
- PSAS
Portland State Aerosapce Society. A student aerospace group at Portland State University. See https://www.pdxaerospace.org/
- SDO
Service Data Object. Configuration settings, possibly node ID, baud rate, offset, gain, etc.
- SDR
Software Define Radio. Radio communications that are traditionally implemented in hardware are instead implemented in software.