After the M300 OSDK serial port is re-plugged, the OSDK reports an error "OSDK lost connection with drone", how to recover?

Keywords: OSDK heartbeat, OSDK lost connection with drone, heartbeat disconnected and reconnected

Actual test verification, disconnect the drone side TTL connection

error message prompts: OSDK lost connection with drone,

then reconnect TTL pins, the heartbeat can be recoverd. Disconnect the PC OSDK port. Due to the occupation of the serial port device, the newly connected serial port device character changed to ttyUSB1, causing communication cannot be recover.

Note: This article is from Chinese and is translated by machine. If there is any error, please point it out and we will correct it in time