Now, ADC is available on stm32l0 family. A calibration is
done at each new adc_sample. Moreover, when conversion is done,
VREFINT and temperature sensor are dactivated to save power.
Signed-off-by: Aurelien Fillau <aurelien.fillau@gmail.com>
Timeouts have been added in I2C driver on the stm32l0
family so that any while loop do not stall the
task forever.
Signed-off-by: Aurelien Fillau <aurelien.fillau@gmail.com>