Snapmaker 2.0 Controller Firmware

Snapmaker2-Controller is the firmware for Snapmaker 2.0 3-in-1 3D Printers. It's based on the popular Marlin firmware with optimized FreeRTOS support.

Documentation

Snapmaker2-Controller builds on the codebase of Marlin 2.0, we also added some new features:

• Build on top of FreeRTOS.
• Support 3 different function modules: 3D Printing Module, Laser Module, CNC Module.
• Support add-ons like Rotary Module and Enclosure Module.
• CAN based communication system.
• Snapmaker specific functions like Auto-leveling, Laser Auto-Focus, Power-Loss Recovery etc.
• HMI (Touch Screen) communication over SSTP.

To read more documentations about Snapmaker2-Controller, you can checkout the Snapmaker2-Controller Overview or Hardware Link for further reading.

Feedback & Contribution

• To submit a bug or feature request, file an issue in github issues.
• To contribute some code, make sure you have read and followed our guidelines for contributing.

Development

Setup Development Environment

As of recommended in Marlin's development settings, we use Visual Studio Code and PlatformIO IDE to develop Snapmaker2-Controller.

• Follow Setting up Visual Studio Code to install and setup VSCode.

• Follow the guide to install PlatformIO extension in VSCode.

• Clone Snapmaker2-Controller repo using Git to your local folder.

> git clone git@github.com:Snapmaker/Snapmaker2-Controller.git

• Open downloaded repo in VSCode
  • Use the Open Folder… command in the VSCode File menu
  • Then choose top folder of Snapmaker2-Controller in your location
• After opening the source code in VSCode, you will see these icons at the bottom status bar，it also indicates PlatformIO has been installed successfully.

Ensure your changes are loaded

• The machine will not load new firmware if the version string remains the same
• You must update Marlin/src/inc/Version.h to change the SHORT_BUILD_VERSION or your changes will not be loaded when flashing the firmware.

Compile the code

• To compile the code, you have two ways:
  • click the build icon in status bar
  • click the terminal icon to open terminal, then type command pio run

NOTE: if you build the source for first time, PlatformIO will download the relative libraries and toochains. It may take a few minutes.

• After PlatformIO finishing the build, you will get two images:

  • (PROJECT FOLDER)/.pioenvs/GD32F105/firmware.bin: image to be programmed into main controller
  • (PROJECT FOLDER)/.pioenvs/GD32F105/firmware.elf: image used to debug the firmware (in online debug tools like Ozone)

• To clean previous build, just click the clean icon, or type command pio run -t clean in the terminal.

Program compiled firmware to main controller

With PlatformIO CLI

After building, type below command in VSCode terminal

> pio run -t pack

Then you will get below firmwares in the folder (PROJECT FOLDER)/release:

• firmware.bin: raw binary of firmware.
• firmware.elf: firmware with debug information.
• SM2_MC_APP_{xxx such as V4.0.0}_{xxx such as 20201222}.bin: minor image of module, can be used to generate major image
• Snapmaker_{xxx: version such as V4.0.0}_{xxx: date such as 20201222}.bin: major image which can be used to upgrade modules with USB stick

Finally, copy the major image to your USB stick and upgrade your machine follow the instructions in How to update Firmware section.

With Luban

You need to install Luban to package the compiled firmware.

First, Open Settings -> Firmware Tool in Luban, upload the compiled firmware.bin, click Compile and Export. You will get a file with name like Snapmaker2_V3.2.0_20201117.bin, this is the packaged update file to be programmed.

Then, Update your firmware via USB follow the instructions in How to update Firmware section.

License

Snapmaker2-Controller is released under terms of the GPL-3.0 License.

Terms of the license can be found in the LICENSE file or at https://www.gnu.org/licenses/gpl-3.0.en.html.