sudo service binfmt-support start
make BOARDDIR=stm32_mcbstm32 CROSS_COMPILE=/home/lmw/toolchains/gcc-arm-none-eabi-5_2-2015q4/bin/arm-none-eabi- BDIR=boards/stm32_mcbstm32/examples/os_simple  USE_DEBUG_PRINTF=USE_DEBUG_PRINTF SELECT_CONSOLE=TTY_SERIAL SELECT_OS_CONSOLE=TTY_SERIAL clean 
make BOARDDIR=stm32_mcbstm32 CROSS_COMPILE=/home/lmw/toolchains/gcc-arm-none-eabi-5_2-2015q4/bin/arm-none-eabi- BDIR=boards/stm32_mcbstm32/examples/os_simple  USE_DEBUG_PRINTF=USE_DEBUG_PRINTF SELECT_CONSOLE=TTY_SERIAL SELECT_OS_CONSOLE=TTY_SERIAL -j4 all 

# make BOARDDIR=stm32_stm3210c CROSS_COMPILE=/home/lmw/toolchains/gcc-arm-none-eabi-5_2-2015q4/bin/arm-none-eabi- BDIR=boards/stm32_stm3210c/examples/com_simple  USE_DEBUG_PRINTF=USE_DEBUG_PRINTF SELECT_CONSOLE=TTY_SERIAL SELECT_OS_CONSOLE=TTY_SERIAL clean
# make BOARDDIR=stm32_stm3210c CROSS_COMPILE=/home/lmw/toolchains/gcc-arm-none-eabi-5_2-2015q4/bin/arm-none-eabi- BDIR=boards/stm32_stm3210c/examples/com_simple  USE_DEBUG_PRINTF=USE_DEBUG_PRINTF SELECT_CONSOLE=TTY_SERIAL SELECT_OS_CONSOLE=TTY_SERIAL all