This is the Specification Document for the CAN-FiX communication protocol.

FIX is an acronym for Flight Information eXchange. It is a set of protocol specifications for exchanging information between aircraft avionics and flight systems. This specification and the protocols themselves are licensed under a Creative Commons license that allows anyone to modify and redistribute these documents without charge.

This is a community supported endeavor, with the primary goal of providing a standard method for avionics and flight control systems to communicate with one other in a vendor neutral way.

The specifications and protocols are primarily geared toward the Experimental Amateur Built (E-AB) aircraft community. Keeping the specification open and free allows airplane builders to create their own devices and write their own software that will be able to communicate with other devices without need to pay for specifications or licenses. It also encourages collaboration in the development and improvement of the protocols themselves.

FIX is a protocol family. This document will describe the CAN-FiX implementation of the FIX protocol. CAN-FiX is a CAN specific implementation of the FIX protocol.

The specification documents are built with Sphinx. The following shows how to install the requirements on Ubuntu

sudo pip install pyexcel pyexcel-ods

sudo pip install sphinx

sudo apt install texlive-latex-base texlive-fonts-recommended

sudo apt install texlive-fonts-extra texlive-latex-extra

sudo apt install latexmk