Hi,

It’s not particularly hard, although the process it not documented and not officially supported. The embedded frameworks come from 2 sources:

• BSP.XML files under %LOCALAPPDATA%\VisualGDB\EmbeddedBSPs define frameworks that come with the BSP
• EFP.XML under %LOCALAPPDATA%\VisualGDB\EmbeddedEFPs define frameworks that can be used for all embedded devices regardless of the BSP

All our code responsible for generating BSPs (including the frameworks) is actually open-source and is available here: https://github.com/sysprogs/BSPTools/, hence you can try modifying some of the existing BSP generators to generate custom framework packages.

Regarding ChibiOS, it currently looks much less popular than other RTOSes like FreeRTOS, so we don’t have any plans of supporting it directly. If it becomes more popular, we will reconsider this. However currently you would need to create the framework manually in order to support this OS out-of-the-box.