This is the original Gecko SDK from Silicon Labs.
If the cross compiling toolchain is in your PATH then the Makefile will auto-detect it; else (or to override it) specify it using the environment variable "CROSS_COMPILE". There might be additional dependencies, depending on which specific project you're using, and the instructions for compilation are included in each project's README.md
- Run
make deps .
to patch the linker with support for the Tomu and clone the Gecko SDK locally. - Inside each project, run
make
.