Fly-E3-Pro-V3 CanBoot bootloader for USB | Mellow Products Documentation

How to compile and install the CanBoot bootloader for USB operation on the Fly-E3-Pro-V3

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Configuring and installing CanBoot bootloader for USB

Overview

Katapult allows you to update your mainboard via USB, so no rebooting and rewiring is necessary. We recommend using Katapult for this additional convenience.

Install Katapult package

Note: The bootloader software formerly known as CANBoot has been renamed to Katapult

Tip: To read more about the KCONFIG_CONFIG option, see here

ssh into your klipper host console

Clone the Katapult firmware to your Klipper Host

cd ~/
git clone https://github.com/Arksine/katapult

From your Fluidd or Mainsail web UI Edit Moonraker.conf and add the following at the bottom to allow Moonraker to manage updates to Katapult.
```
[update_manager Katapult]
type: git_repo
path: ~/katapult
origin: https://github.com/Arksine/katapult.git
is_system_service: False
```

Compile Katapult firmware

cd to the Katapult directory
```
cd ~/katapult
```

Run make clean

make clean KCONFIG_CONFIG=config.e3prov3

Open menuconfig

make menuconfig KCONFIG_CONFIG=config.e3prov3

Set the following settings
- Micro-controller Architecture (STMicroelectronics STM32)
- Processor model (STM32F407)
- Build Katapult deployment application (32KiB bootloader)
- Clock Reference (8 MHz crystal)
- Communication interface (USB (on PA11/PA12))
- Application start offset (32KiB offset)
- () GPIO pins to set on bootloader entry
- [*] Support bootloader entry on rapid double clip of reset button
- [ ] Enable bootloader entry on button (or gpio) state
- [ ] Enable Status LED
  
  Katapult Menu Config USB
Quit and save the configuration
Run the make command to compile the firmware
```
make KCONFIG_CONFIG=config.e3prov3 -j4
```
You should now have a deployer.bin file at ~/katapult/out/

Flash Katapult to the Fly-E3-Pro-V3 MCU

ftp to your klipper host with an FTP client like FileZilla
- open the folder ‘~/katapult/out’
- download deployer.bin to your PC
place the MCU MicroSD card into a card reader and connect it to your PC.
ensure that the SD Card is formatted as Fat32. If in doubt use the SD Card Formatter.
Copy the deployer.bin file to the root of the SD card
rename deployer.bin to firmware.bin
Eject the SD card from the PC
Insert the SD card into the Fly-E3-Pro-V3 SD card Slot.

Fly-E3-Pro-V3 SD card
Press the Fly-E3-Pro-V3 reboot button

Fly-E3-Pro-V3 reset button
Wait a few minutes
Open a putty SSH session to the Fly-E3-Pro-V3 and log on
run lsusb to verify the MCU has been discovered as a USB device

Example lsusb Output
Continue to the Klipper for USB configuration section

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