#ifndef __filter_h__
#define __filter_h__

// filter specifications: removing largest and smallest samples
#define   FILTER_SIZE         2    // size of digital filter
#define   FILTER_SHIFT        1
#define   FILTER_END         (FILTER_SIZE+1)
#define   FILTER_ANX         (FILTER_SIZE+2)

// DELTA filter
#define   DELTA_FILTER_SIZE   4    // size of digital filter
#define   DELTA_FILTER_SHIFT  2
#define   DELTA_FILTER_END    (DELTA_FILTER_SIZE-1)
#define   DELTA_TIME_ANX      (DELTA_FILTER_SIZE+1)

extern u16 SAMPLES[][FILTER_ANX];

u16 ReadDataFromMovingAverage(u16 channel);
u16 MovingAverage(u16 voltageBuffer, u16 updateScale, u16 channel);

#endif