The 'msba2' common files have accumulated many empty files are files that
do nothing.
This makes reasoning about the boards needlessly difficult.
Trim down on `common/msba2/` so that it now only contains the setup for the
UART/bootloader based flashing.
This should eventuelly be moved to `makefiles/tools/`
- Removed cc110x driver
- Updated all makefiles
- Kept both board specific configurations and support for it in RIOT's
upper layers, so re-implementations don't need to start from zero
- Use RIOT's GPIO interface to access the sensor to increase portability
- Changed API to allow more than one sensor per board
- Added `sht1x_params.h` that specifies how the sensors is connected - each
board can overwrite default settings by #defining SHT1X_PARAM_CLK and
SHT1X_PARAM_DATA
- Changed arithmetic to use integer calculations only instead of floating point
arithmetic
- Added support for checking the CRC sum
- Allow optional skipping of the CRC check to speed up measuring
- Added support for advanced features like reducing the resolution and skipping
calibration to speed up measuring
- Allow specifying the supply voltage of sensor which heavily influences the
temperature result (and use that information to calculate the correct
temperature)
- Reset sensor on initialization to bring it in a well known state
- Support for the obscure heater feature. (Can be useful to check the
temperature sensor?)
- Updated old SHT11 shell commands to the new driver interface, thus allowing
more than one SHT10/11/15 sensor to be used
- Added new shell command to allow full configuration of all attached SHT1x
sensors
- Removed old command for setting the SHT11 temperature offset, as this feature
is implemented in the new configuration command
- Replaced magic numbers in the CC110X configuration of the MSBA2
with SPI_DEV(x) and GPIO_PIN(x, y) macros
- Adjusted implementation of `cc110x_params.h` to match the code of `at86rf2xx`
- Made MSBA2's CC110X parameters the default configuration
