dsp16_filt_interpolation_coefsort.c File Reference

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Detailed Description

Generic 16-bit coefficients sorting function for the interpolation filter.

• Compiler: IAR EWAVR32 and GNU GCC for AVR32
• Supported devices: All AVR32 devices.
• AppNote:

Author:

Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file dsp16_filt_interpolation_coefsort.c.

#include "dsp.h"

Go to the source code of this file.

Functions
void	dsp16_filt_interpolation_coefsort (dsp16_t *fir_coefs, int n_tap, int interpolation_ratio)
	This function resort the coefficients of a FIR filter to be used with the function dsp16_filt_interpolation.
static int	get_new_index (int cur_index, int n_tap, int interpolation_ratio)

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Function Documentation

static int get_new_index	(	int	cur_index,
		int	n_tap,
		int	interpolation_ratio
	)			[inline, static]

Definition at line 53 of file dsp16_filt_interpolation_coefsort.c.

Referenced by dsp16_filt_interpolation_coefsort().

{
  return n_tap * cur_index + (1 - n_tap * interpolation_ratio) * (cur_index / interpolation_ratio);
}