SpeedyBee F405 V4 Firmware Change

This repository provides a step-by-step guide for changing the firmware on the SpeedyBee F405 V4 flight controller. Specifically, it demonstrates how to flash iNav firmware using a USB connection and configure it to work with Mission Planner. The process utilizes DFU mode and the STM32CubeProgrammer, providing a straightforward method to explore different firmware options for your flight controller.

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Why Change Firmware?

1. Experimentation: Explore the capabilities of iNav and compare them with other firmware like Betaflight or ArduPilot.
2. Customization: Unlock features like GPS navigation and waypoint missions with iNav.
3. Flexibility: Use Mission Planner for advanced telemetry and mission planning.

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Required Tools and Resources

• Hardware:

  • SpeedyBee F405 V4 Flight Controller.
  • USB-C Cable.

• Software:

  • STM32CubeProgrammer (for flashing firmware).
  • Mission Planner (for configuration and testing).
  • iNav Configurator (for iNav setup and configuration).

• Firmware:

  • iNav Firmware (SpeedyBee F405 V4).
  • Hex file provided in this repository.

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Step-by-Step Guide

1. Enter DFU Mode

• Connect the SpeedyBee F405 V4 to your computer using a USB-C cable.
• Hold down the Boot button on the flight controller and plug in the USB cable.
• Verify that the board is in DFU mode by checking the device manager (Windows) or lsusb (Linux).

2. Download and Install STM32CubeProgrammer

• Download STM32CubeProgrammer from STMicroelectronics.
• Install the software on your computer.

3. Download the Firmware

• Obtain the latest iNav firmware for the SpeedyBee F405 V4 from this link.
• Ensure you download the correct .hex file for your flight controller.

4. Flash the Firmware

1. Open STM32CubeProgrammer.
2. Select the DFU connection type.
3. Click Connect.
4. Erase the chip:
   • Go to the Erasing & Programming section and choose Full Chip Erase.
5. Flash the firmware:
   • Click Add File and select the .hex file.
   • Click Start Programming to write the firmware.

5. Verify the Flash

• After the programming is complete, power-cycle the flight controller.
• Open Mission Planner to confirm the board is running iNav.

6. Set Up iNav

• Use the iNav Configurator to configure your flight controller:
  • Calibrate accelerometer, gyroscope, and magnetometer.
  • Configure GPS and flight modes.
  • Test motor outputs and assign UART ports.

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Additional Notes

• Switching Back to Betaflight or Other Firmware:
  • Follow the same steps, but use the appropriate firmware file for Betaflight or ArduPilot.
• Recovering from Failed Flashes:
  • If the board does not boot after flashing, re-enter DFU mode and repeat the process.

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Useful Links

• STM32CubeProgrammer Documentation
• iNav Official Documentation
• Mission Planner Documentation