Sin/Cos signals are checked to make sure the module of the vector
is larger than 1V and smaller than 1.65V. A working encoder will
never have both sin and cos signals at 0V (zero amplitude module).
Both sin and cos at 3.3V is also not a possible value.
Errors are logged independently for signals too large and for
signals too small, provinding the user more insight when an encoder
fault happens. In the terminal, the 'encoder' command will show
the error counts and error rates of the encoder being used.
Signed-off-by: Marcos Chaparro <mchaparro@powerdesigns.ca>
Reads sine and cosine on ADC_IND_EXT and ADC_IND_EXT2, usually
used for ACCEL and REGEN inputs. Provides offset and gain
compensation and is implemented using floating point math.
Note it includes the full mc_interface.h into encoder.c only
to access the ADC readings, and no filtering is performed on
the signals.
Signed-off-by: Marcos Chaparro <mchaparro@powerdesigns.ca>
Marcos Chaparro
vadim
Benjamin Vedder