https://www.keil.arm.com/devices/silicon-labs-efr32fg28b322f1024im68/boards/
Arm Keil | Silicon Labs EFR32FG28B322F1024IM68
Keil MDK and Keil Studio. As flexible as you are: from cloud to desktop, from CLI to GUI, running on macOS, Linux, and Windows
arm keilsilicon labs