SPIDER V2.2 MCU FW INSTALL/UPDATE

The firmware installation process for the Fysetc Spider MCU

Prerequisites:

Klipper must be installed onto the Raspberry Pi
Take two blue jumpers out of the Fysetc Spider box
You should have physical access to the MCU
Voron Design recommends using USB to control the Spider, which simply requires connecting a USB-A to USB-C cable between the Spider and Pi. If you prefer a UART connection, please consult the fysetc documentation for the necessary configuration adjustments.

Run the following:

sudo apt install make
cd ~/klipper
make clean
make menuconfig

In the menu structure there are a number of items to be selected.
- Select “Enable extra low-level configuration options”
- Set the micro-controller architecture is set to STMicroelectronics STM32
- Set the Processor model to STM32F446
- Set the Bootloader offset to 32KiB bootloader
- If your Spider was made prior to 2021/06/23, set the Bootloader offset to 64KiB bootloader
- Set the Clock Reference to 12 MHz crystal
- Set the Communication interface to USB (on PA11/PA12) (note: see Fysetc documentation if you intend to use UART rather than USB)
Once the configuration is selected, press q to exit, and “Yes” when asked to save the configuration.
Run the command
```
make
```
The make command, when completed, creates a firmware file klipper.bin which is stored in the folder /home/pi/klipper/out.

From your ssh session, run
```
lsusb
```
and find the ID of the DFU device.
Run command below replacing 1234:5678 with the ID from the previous step
```
make flash FLASH_DEVICE=1234:5678
```

Power off the Spider
Remove the jumper from BT0/3.3V
Power up the Spider
You can confirm that the flash was successful by running
```
ls /dev/serial/by-id
```

If the flash was successful, this should now show a klipper device, similar to: