view projects/d-box/FIRfilter.h @ 45:579c86316008 newapi

Major API overhaul. Moved to a single data structure for handling render functions. Functionally, generally similar except for scheduling within PRU loop function, which now uses interrupts from the PRU rather than polling. This requires an updated kernel.

/*
 * FIRfilter.h
 *
 *  Created on: Aug 5, 2014
 *      Author: Victor Zappi and Andrew McPherson
 */

#ifndef FIRFILTER_H_
#define FIRFILTER_H_


#include <NE10.h>

//#define FILTER_TAP_NUM 21
//ne10_float32_t filterTaps[FILTER_TAP_NUM] = {
//	0.000350,
//	0.001133,
//	0.002407,
//	0.004203,
//	0.006468,
//	0.009057,
//	0.011748,
//	0.014265,
//	0.016323,
//	0.017671,
//	0.018141,
//	0.017671,
//	0.016323,
//	0.014265,
//	0.011748,
//	0.009057,
//	0.006468,
//	0.004203,
//	0.002407,
//	0.001133,
//	0.000350
//};
#define FILTER_TAP_NUM 31
ne10_float32_t filterTaps[FILTER_TAP_NUM] = {
		0.000018,
		0.000043,
		0.000078,
		0.000125,
		0.000183,
		0.000252,
		0.000330,
		0.000415,
		0.000504,
		0.000592,
		0.000677,
		0.000754,
		0.000818,
		0.000866,
		0.000897,
		0.000907,
		0.000897,
		0.000866,
		0.000818,
		0.000754,
		0.000677,
		0.000592,
		0.000504,
		0.000415,
		0.000330,
		0.000252,
		0.000183,
		0.000125,
		0.000078,
		0.000043,
		0.000018
};

#endif /* FIRFILTER_H_ */