efm32 si446x

Linking target: example-trickle.stk3700
arm-none-eabi-gcc -Xlinker -Map=example-trickle.stk3700.map -L../../contiki/cpu/arm//efm32 -Tefm32g128.ld -Wall -Wextra -mcpu=cortex-m3 -mthumb -mfix-cortex-m3-ldrd -Wl,--gc-sections example-trickle.co obj_stk3700/leds.o obj_stk3700/leds-arch.o obj_stk3700/shell-efm32hw.o obj_stk3700/spi.o obj_stk3700/radiopro2.o obj_stk3700/radio_hal.o obj_stk3700/radio_comm.o obj_stk3700/si446x_api_lib.o obj_stk3700/si446x_nirq.o obj_stk3700/si446x_radio.o obj_stk3700/contiki-main.o contiki-stk3700.a emlib.a -Wl,--start-group -lgcc -lc  -lnosys  -Wl,--end-group -o example-trickle.stk3700
[RAM]   used   5088, free  11296
[Flash] used  38732, free  92340