I kindly request you, please share proper “.dfu” bootloader file for Pixracer?
https://firmware.ardupilot.org/Copter/stable/Pixracer/
Find the file with “with_bl” for bootloader.
Which is best booting method? I am using dfuse demo software.
How I upload the .hex file into controller?
Good day, you can do it with a jtag programmer or sd card…
You can find the bootloader on this link:
https://firmware.ardupilot.org/Tools/Bootloaders/
Just check for PIXRACER or Pixracer_bl.bin (15.7 KB)
voilà
Just in case i will prepare you what you need for make it work with sd card