Pixhawk or Pixracer firmware may be flashed using QGroundControl or command line utilities.
It is advisable to use a specialized build of PX4 with the necessary fixes and better defaults for the Clover drone. Use the latest stable release in our GitHub repository with the word
clover, for example,
Open the Firmware section in QGroundControl. Then, connect your Pixhawk or Pixracer via USB.
Choose PX4 Flight Stack. If you wish to install the official firmware (with EKF2 for Pixhawk), choose "Standard version". In order to flash custom firmware, choose "Custom firmware file..." and click OK.
Do not unplug your flight controller from USB during flashing!
The name of the firmware file contains information about the target flight controller and build variant. For example:
px4fmu-v4_default.px4— firmware for Pixhawk with EKF2 and LPE (Clover 3 / Clover 4).
px4fmu-v2_lpe.px4— firmware for Pixhawk with LPE (Clover 2).
px4fmu-v2_default.px4— firmware for Pixhawk with EKF2.
px4fmu-v3_default.px4— firmware for newer Pixhawk versions (rev. 3 chip, see Fig. + Bootloader v5) with EKF2 and LPE.
In order to flash the
px4fmu-v3_default.px4file, you may need to use the
force_uploadcommand in the command prompt.
PX4 may be compiled from the source and automatically flashed to the flight controller from the command prompt.
To do this, clone the PX4 repository:
git clone https://github.com/PX4/Firmware.git
Select the appropriate version (tag) using
git checkout. Then compile and upload the firmware:
make px4fmu-v4_default upload
px4fmu-v4_default is the required firmware variant.
In order to upload the
v3 firmware to Pixhawk, you may need to use the
make px4fmu-v3_default force-upload