Hi, In Ardupilot code how i create a custom message by using Mavlink protocol for example in that already some of the default messages are their(Like: Heartbeat and system status and etc…) and that custom messages are added in the common.xml file i had added in that file,but i didnot get it in the console(My msg) what is the solution …anybody had created a custom msg in the Ardupilot code using mavlink…
AFAIK you need to compile pretty much everything to add new messages, please use custom.xml (IIRC it is a dedicated place for custom messages).
Unfortunately checksum validation requires frame format knowledge.
At a minimum you will have to recompile all mavlink related modules in Ardupilot and your GCS of choice.