User Manual

F3 SETUP connector – Used for Flashing firmware and configuring the Flight controller by
computer with connected to the USB-TTL Serial Converter
OSD SETUP connector – Used for Flashing OSD firmware and configuring the OSD
SWD/DEBUG connector - Used for software development or flashing via SWD
Cannot be used when UART2 is enabled. Use an ST-Link debugger with OpenOCD or a
J-Link debugger.
Flight controller Firmware Upgrade
It is highly recommended that you immediately upgrade the firmware of the flight controller so
that you have the latest features and bug fixes. DO NOT FLY until you have used the latest
firmware.
Click the Firmware Flasher tab.
Select the latest SPRacingF3 stable release.
Set the flashing baud rate to 256000.
Click ‘Load firmware [Online]’ and wait for firmware to download and read release notes.
Click ‘Flash Firmware’.