examples/dsp16_iir/iir_example.c File Reference

#include <avr32/io.h>
#include "compiler.h"
#include "board.h"
#include "dsp.h"
#include "dsp_debug.h"
#include "pm.h"

Macros
#define	DEN_PREDIV   3
#define	DEN_SIZE   5
#define	NUM_PREDIV   3
#define	NUM_SIZE   6
#define	SIZE   48
	The size of the input signal. More...

Functions
int	main (int argc, char *argv[])
	The main function. More...

Variables
A_ALIGNED dsp16_t	den [DEN_SIZE]
A_ALIGNED dsp16_t	num [NUM_SIZE]
A_ALIGNED dsp16_t	x [SIZE+NUM_SIZE-1]
	The input signal (sampling rate: 48KHz) A mix between a 4000 Hz and a 1000 Hz signal (mixed by addition) More...
A_ALIGNED dsp16_t	y [SIZE+DEN_SIZE]
	The output buffer. More...

#define DEN_PREDIV   3

Referenced by main().

#define DEN_SIZE   5

Referenced by main().

#define NUM_PREDIV   3

Referenced by main().

#define NUM_SIZE   6

Referenced by main().

#define SIZE   48

The size of the input signal.

Referenced by main().

int main	(	int	argc,
		char *	argv[]
	)

The main function.

References den, DEN_PREDIV, DEN_SIZE, dsp16_debug_print_vect(), dsp16_filt_iir(), dsp_debug_initialization, FOSC0, i, num, NUM_PREDIV, NUM_SIZE, pm_switch_to_osc0(), SIZE, x, and y.

A_ALIGNED dsp16_t den[DEN_SIZE]

Initial value:

= {
  DSP16_Q(-4.1534907 / (1 << DEN_PREDIV)),
  DSP16_Q(6.9612765  / (1 << DEN_PREDIV)),
  DSP16_Q(-5.877997  / (1 << DEN_PREDIV)),
  DSP16_Q(2.498365   / (1 << DEN_PREDIV)),

}

A_ALIGNED dsp16_t num[NUM_SIZE]

Initial value:

= {
  DSP16_Q(0.6537018  / (1 << NUM_PREDIV)),
  DSP16_Q(-3.2685088 / (1 << NUM_PREDIV)),
  DSP16_Q(6.5370176  / (1 << NUM_PREDIV)),
  DSP16_Q(-6.5370176 / (1 << NUM_PREDIV)),
  DSP16_Q(3.2685088  / (1 << NUM_PREDIV)),

}

A_ALIGNED dsp16_t x[SIZE+NUM_SIZE-1]

The input signal (sampling rate: 48KHz) A mix between a 4000 Hz and a 1000 Hz signal (mixed by addition)

A_ALIGNED dsp16_t y[SIZE+DEN_SIZE]

Initial value:

= {

}

The output buffer.