Katapult Configuration for the Fly-DP5 on USB to CAN Bridge Mode

How to Configure Katapult for USB to CAN Bridge Operation on the Fly-DP5

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Configuring and installing Katapult bootloader for USB to CAN Bridge Mode

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.dp5
```

Open menuconfig

make menuconfig KCONFIG_CONFIG=config.dp5

Set the following settings
- Micro-controller Architecture (STMicroelectronics STM32)
- Processor model (STM32F072)
- Build Katapult deployment application (8KiB bootloader)
- Clock Reference (8 MHz crystal)
- Communication interface (USB (on PA11/PA12))
- Application start offset (8KiB 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.dp5 -j4
```
You should now have a katapult.bin file at ~/katapult/out/

Enter DFU Mode

Flash Katapult to the Fly-DP5 MCU

make sure dfu-util is installed.

sudo apt install dfu-util -y

run lsusb to verify the board has been detected in DFU mode.

lsusb

Tip: If the board does not appear as a DFU device, please follow the instructions again to enter DFU mode.

Flash katapult

sudo make KCONFIG_CONFIG=config.dp5 flash FLASH_DEVICE=0483:df11

This will flash the Katapult bootloader image and restart the Fly-DP5.

run lsusb to verify the MCU has been discovered as a USB device

Continue to the Klipper for USB to CAN Bridge configuration section

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