The QLCP protocol is a binary protocol used by launch control for ground communications between the launch control server and control nodes. It supports remote actuator control and data acquisition from control nodes for pre-launch systems control.
The server announces its presence via multicast with a DISCOVERY packet. Devices listen for this broadcast to discover the server.
- Multicast address:
239.100.0.1 - Multicast port:
10000
When a device receives a DISCOVERY packet, it extracts the server's IP address from the UDP source address of the packet. It then opens a TCP connection to the server.
- Server listen port:
50000 - The server never connects to devices. Devices always initiate TCP connections to the server.
- Server listen port:
50001 - The server listens through UDP for DATA packets ONLY. DATA packets MUST be sent through UDP.
Refer to the Protocol Specification for an in-depth explanation of all packet types and enums.
To compile the library as a CMake package, run:
cmake -S . -B build/ -G <build_system>
cmake --build build/
cmake --install build/ --prefix ./distIf using as a Git submodule add:
add_subdirectory(qlcp)
target_link_libraries(your_project_name PRIVATE qlcp::qlcp)to your CMakeLists.txt.