The Silicon Labs EFM32 Happy Gecko MCU includes:
* Cortex-M0+ core at 24MHz
* Up to 64KB of flash and 8KB of RAM
* Full speed (12 MHz) USB 2.0 Device
* Multiple low power peripherals
Signed-off-by: Marcio Montenegro <mtuxpe@gmail.com>
Signed-off-by: Christian Taedcke <hacking@taedcke.com>