USB Firmware Compilation

Check DIP Switch

Note

• When using normally, please set the DIP switch to up.
• When switching the DIP switch, please push it all the way to the top; otherwise, you may not be able to connect to the lower-level machine!!!

SSH Connection to Host Machine

Warning

• Before firmware compilation, you need to use WiFi to connect to the host machine via SSH.

• First, please: Use WiFi to connect to the host machine SSH

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USB Firmware Burning

USB Firmware Burning

Tip

• A USB firmware has been precompiled in the FLYOS-FAST system, so there is no need to manually compile the firmware. Just execute the following command to burn it.
• You can also choose to manually compile the USB firmware.

• Input the following command through SSH connection to the host machine

fly-flash -d c5 -h -f /usr/lib/firmware/klipper-h723-128k-usb.bin

Fill in USB ID

1. Open the host machine's WEB interface, and find it in the configuration options on the left sidebar:

For fluidd: {…}, click to enter, and you can find printer.cfg

For mainsail: Machine, click to enter, and you can find printer.cfg

2. Copy the blue ID, and fill in the queried ID after the serial: option under the [mcu] section in the printer.cfg file. After saving and restarting, you can connect to the main board.

tip

• Replace the ID below with the ID in the MCU configuration.

[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32h723xx_12345-if00

3. If Klipper prompts ADC out of range, this is a normal phenomenon. Connect the heated bed and thermistor to the main board, configure the thermistor pins for the nozzle and heated bed, then save and restart.

Manual Compilation of USB Firmware

Manual Compilation of USB Firmware

Klipper Firmware Compilation and Configuration Page Operation Instructions

tip

Please ensure that the keyboard input method is in half-width mode, i.e., English mode.

1. The up arrow key ↑, down arrow key ↓ are used to move the cursor up and down to select menu items.
2. The confirm key Enter or space key Space is used to check the menu or enter a sub-menu.
3. The exit key ESC is used to return to the previous menu.
4. The Q key is used to exit the Klipper firmware configuration page.
5. The Y key, when exiting the Klipper firmware configuration page and there is a prompt, click the Y key to save the configuration file.

warning

If there are fewer options in the configuration page, please first check [ ] Enable extra low-level configuration options to display some hidden options.

Below is an introduction on 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

• Where rm -rf ~/klipper/.config && rm -rf ~/klipper/out is to delete previous compilation data and firmware, make menuconfig is to compile the firmware, after execution, the following interface should appear

  

• Select Enable extra low-level configuration options and press Enter

  

• Enter the menu Micro-controller Architecture then select STMicroelectronics STM32 and press Enter

  

• Enter the menu Processor model, select STM32H723 and press Enter

  

• Select Bootloader offset, select: 128KiB bootloader

  

• Select Clock Reference (8 MHz crystal), select: 25 MHz crystal

  

• Communication interface, select: USB (on PA11/PA12)

  

• Press Q, and when Save configuration appears, press Y

• Now the configuration should have been saved, and you should have exited to the command line interface

• Enter make -j4 to start compiling, which takes some time

• Finally, if the output is as follows, the compilation is successful

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Firmware Burning

tip

Execute the following command to burn the firmware

fly-flash -d c5 -h -f ~/klipper/out/klipper.bin

Search for USB ID

1. Open the browser and enter the IP address of the host computer in the address bar, for example, if the IP address of my host computer is 192.168.101.179, simply enter it and press Enter.

2. Open the WEB interface of the host computer, find in the configuration options on the left sidebar:

For fluidd: {…}, click to enter, you can find printer.cfg

For mainsail: Machine, click to enter, you can find printer.cfg

3. Click into printer.cfg, then click DEVICES on the top right

4. Click SERIAL, then refresh

Refresh for fluidd

Refresh for mainsail

5. Copy the ID, click the arrow to copy

For fluidd, check whether ttyAMC exists and ensure Path by ID exists, this is the USBID

For mainsail, check whether ttyAMC exists and ensure Path by ID exists, this is the USBID

Fill in USB ID

1. Close DEVICES and fill in the ID

Note

• Please modify the configuration file as follows:

[mcu] 
serial: /tmp/klipper_host_mcu

to

[mcu host] 
serial: /tmp/klipper_host_mcu

• Add:

[mcu]
serial: <replace with the ID you just queried>

Find [MCU] in fluidd

Find [MCU] in mainsail

2. Fill in the ID in the configuration

tip

• After filling in the ID, click SAVE & RESTART on the top right

3. If Klipper prompts ADC out of range, this is a normal phenomenon. Connect the heated bed and thermistor to the motherboard, configure the thermistor pins for the nozzle and heated bed, then save and restart.

dangerous

Note: All IDs mentioned in the document are examples. Each motherboard has a different ID, please fill in the actual obtained ID.

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