[I2C]adding I2C CPAL V1.1.0, because stm32 Fxxx i2c bus has fatal bug!
lsm303dlh :  accelerometer, electric compass
TODO : reading 2 more bytes make system hang!

bmp085 : air pressure and temperature
[I2C]adding mutex and event
todo : i2c cpal has no mutex and event, so it refers to i2c.c
[sd_io] sdcard fat enabled