RS232 Firmware Compilation

Start Compilation

Network: Ensure the host machine (Raspberry Pi, etc.) is connected to the network.
Login Method: Must use SSH to log in via the network; disable serial port.
Input Method: Keep the keyboard in English half-width mode.

Use tools like MobaXterm, PuTTY, etc., to SSH into the host machine.

Standard Systems (Raspberry Pi official system, etc.)
Do not use root. Switch to a regular user:
```
su <username>
```
FLY Host Machine (FlyOS-FAST system)
Only supports logging in as the root user (password: mellow).

In the Klipper firmware configuration interface, only keyboard operations are supported; mouse usage is not possible.

Key	Function
↑ / ↓	Move the cursor up/down to select menu items
Enter / Space	Confirm selection, toggle options, or enter submenus
ESC	Return to the previous menu
Q	Exit the configuration interface
Y	When exiting, press Y if prompted to save the configuration

The following describes how to compile the firmware:

After connecting to SSH, enter the following command and press Enter:

cd ~/klipper && rm -rf ~/klipper/.config && rm -rf ~/klipper/out && make menuconfig

The command rm -rf ~/klipper/.config && rm -rf ~/klipper/out deletes previous compilation data and firmware.
make menuconfig is for compiling the firmware. After execution, the following interface should appear:

Loading...
Select Enable extra low-level configuration options and press Enter.

Loading...
Navigate to the menu Micro-controller Architecture, then select STMicroelectronics STM32 and press Enter.

Loading...
Navigate to the menu Processor model, select STM32H723, and press Enter.

Loading...
Select Bootloader offset, and choose: NO bootloader.

Loading...
Select Clock Reference (8 MHz crystal), and choose: 25 MHz crystal.

Loading...
For Communication interface, select: Serial (on USART1 PA10/PA9).

Loading...

Select GPIO pins to set at microcontroller startup, input: !PA15 Note: The exclamation mark is uppercase.
Loading...

Press the Q key. When Save configuration appears, press the Y key.
Loading...
The configuration should now be saved, and you will return to the command line interface.
Enter the following command to start compilation. This process may take some time:

make -j4

If the following content appears at the end, the compilation is successful.
Due to Klipper version differences, the appearance of out/klipper.bin indicates success:
```
Linking out/klipper.elf
Creating bin file out/klipper.bin
```

Tip

The upper button is the RESET button, and the lower button is the BOOT button.

There are two methods to enter DFU mode.
First method: With the mainboard completely powered off, press and hold the BOOT button, then connect a data cable (capable of data transfer) between the mainboard and the host computer.
Second method: With a data cable (capable of data transfer) connected between the mainboard and your host computer, press and hold the BOOT button, then press the RST button, release the RST button, and finally release the BOOT button.
Loading...