Katapult New — Setup

python3 ~/katapult/scripts/flashtool.py -d /dev/serial/by-id/... -f ~/klipper/out/klipper.bin Or over CAN:

python3 flashtool.py -i can0 -u <uuid> -f klipper.bin | Advantage | Details | |-----------|---------| | CAN update convenience | No need to physically access USB port on each board in a multi-toolhead setup | | Recovery safety | Bootloader remains intact; reflash if main firmware corrupts | | Unified flashing tool | Works across different MCUs (STM32, RP2040, LPC) | | Faster development | No jumper pressing or USB replugging for each firmware change | | Small overhead | Negligible flash/RAM impact on modern boards | 4. Cons & Limitations | Limitation | Explanation | |------------|-------------| | One-time difficult initial flash | First installation may require SWD or DFU (extra hardware) | | Offset complexity | Must correctly match bootloader size with Klipper’s CONFIG_FLASH_START | | CAN tooling setup | CAN network, termination, and can0 interface must be correctly configured | | Board compatibility | Not all boards have documented Katapult support; some require custom builds | | Debugging opacity | If Katapult fails to jump to Klipper, error messages are minimal | 5. Comparison with Alternatives | Bootloader | Ease of Setup | CAN Update | Multi-MCU | Recovery | |------------|---------------|-------------|-----------|----------| | Katapult | Moderate | ✅ Yes | ✅ Yes | ✅ Good | | Bossa (native) | Easy (USB) | ❌ No | ❌ No | ✅ Good | | DFU (STM32) | Easy (USB) | ❌ No | ❌ No | ✅ Good | | CANboot (older) | Harder | ✅ Yes | ✅ Yes | ✅ Good | katapult new setup

make flash FLASH_DEVICE=0483:df11 Build Klipper with Katapult support (set offset to match bootloader size). Flash using: python3 ~/katapult/scripts/flashtool

If you meant a different Katapult product (e.g., a hardware kit, a software tool, or a gaming peripheral), please clarify. The following assumes you refer to the for 3D printers (formerly known as CANboot ). 1. Overview – What is Katapult? Katapult is a lightweight bootloader for 32-bit microcontrollers (especially STM32, LPC176x, RP2040) used in 3D printing. Its “new setup” typically refers to the transition from legacy bootloaders (e.g., Bossa, DFU) to Katapult, often to enable CAN bus flashing or easier firmware updates without USB re-flashing. Comparison with Alternatives | Bootloader | Ease of