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Bootloader for Open source video transmitter firmware

OpenVTx firmware can be found from https://github.com/JyeSmith/OpenVTx

Setup

See OpenVTx flashing documentation

Flashing the VTx

See OpenVTx flashing documentation how to connect ST-Link.

See EWRF E7082VM bootloader flash helper for a 3D print to help with inital bootloader flash.

Select EWRF_E7082VM_bootloader env and hit upload to flash a bootloader.

Note: This automatically removes protections so no need to use ST-Link Utility anymore.

Note: Make sure the red led starts blinking after flashing! If not you might need open ST-Link utility and just apply option bytes. This seems to be a problem with some GD32 MCUs

Next you need to flash OpenVTx firmware:

  • Connect VTX to FC
  • Select VTX (TBS SmartAudio)
  • Use EWRF_E7082VM_serialpassthrough target to upload actual OpenVTx firmware.

Happy flying :)