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Message & Error Explainer

What an ArduPilot message means and what to do about it

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Notes ArduPilot writes at the start of a log

InformationLogging and storage

What ArduPilot says:

These lines are only in the log, never on the ground station's screen. “Param space used: 1234/16384” is how many bytes of the parameter storage are taken and how many there are; only values that differ from the defaults take space. “RC Protocol: CRSF” is the receiver protocol being decoded when the log began (None if no receiver had been seen). “New mission”, “New rally” and “New fence” mark the places where the mission, the rally points or the fence were written into the log: at its start, and again each time one is changed.

The code that sends it

New mission

libraries/AP_Logger/LoggerMessageWriter.cpp LoggerMessageWriter_WriteEntireMission::process() · Open in ArduPilot Copter-4.7.1

Param space used: N/N

libraries/AP_Logger/LoggerMessageWriter.cpp LoggerMessageWriter_WriteSysInfo::process() · Open in ArduPilot Copter-4.7.1

New rally

libraries/AP_Logger/LoggerMessageWriter.cpp LoggerMessageWriter_WriteAllRallyPoints::process() · Open in ArduPilot Copter-4.7.1

RC Protocol: …

libraries/AP_Logger/LoggerMessageWriter.cpp LoggerMessageWriter_WriteSysInfo::process() · Open in ArduPilot Copter-4.7.1

And 1 more messages, sent from the same places.

Written here for Copter 4.6. In the tool you choose your vehicle and version, see your own parameter values beside the ones named here, and drop a flight log to have every message in it explained.

Open it in the Message & Error Explainer