Filtering Management Task.

#include <stddef.h>
#include <stdio.h>
#include <avr32/io.h>
#include "compiler.h"
#include "filter_task.h"
#include "dsp.h"
#include "conf_demo.h"

Macros
#define	FIR_COEF_SIZE 25

Functions
void	filter_task (void)
	Filter Task Function: More...

static void	filter_task_fir (float vect2, float vect1, int b_length, float *h, int h_size)
	Local function of filtering through floating point implementation of FIR filter. More...

static void	filter_task_fir_fp (dsp32_t vect2, dsp32_t vect1, int b_length, dsp32_t *h, int h_size)
	Local function of filtering through fixed point implementation of FIR filter. More...

void	filter_task_init (void)
	Filter Task Init Function. More...

Variables
A_ALIGNED dsp32_t	fir_coef32b [FIR_COEF_SIZE]

float	fir_coef_fl [FIR_COEF_SIZE]

dsp16_t	signalin_noise_gui [GUI_BUFFER_LENGTH]
	Reference to Signal In + Noise Signal Buff 16-bit fixed point Format scaled in GUI format for the GUI task. More...

volatile float	signalin_noise_remote [GUI_BUFFER_LENGTH]
	Reference to Signal In + Noise Signal Buff in floating point Format scaled for the remote task. More...

A_ALIGNED dsp16_t	signalout_fp_gui [GUI_BUFFER_LENGTH]
	Reference to Filtered Signal through 16-bit fixed point Format scaled in GUI format for the GUI task. More...

volatile float	signalout_fp_remote [GUI_BUFFER_LENGTH]
	Reference to Filtered Signal through 16-bit fixed point Format scaled for the remote task. More...

A_ALIGNED dsp16_t	signalout_fpu_gui [GUI_BUFFER_LENGTH]
	Reference to Filtered Signal through floating point Format scaled in GUI format for the GUI task. More...

volatile float	signalout_fpu_remote [GUI_BUFFER_LENGTH]
	Reference to Filtered Signal through floating point Format scaled for the remote task. More...

float	w [FIR_COEF_SIZE]
	Floating Point Implementation of FIR Filter. More...

dsp32_t	w_fp [FIR_COEF_SIZE]
	Fixed Point Implementation of FIR Filter in 32-bits format. More...

#define FIR_COEF_SIZE 25

Referenced by filter_task().

void filter_task ( void )

Filter Task Function:

Filter signal using Fixed Point Implementation
Filter signal using Floating Point Implementation
Rr

References A_ALIGNED, filter_task_fir(), filter_task_fir_fp(), fir_coef32b, fir_coef_fl, FIR_COEF_SIZE, GUI_BUFFER_LENGTH, GUI_SCALE_GAIN_VALUE, GUI_SCALE_OFFSET_VALUE, i, signalin_noise_remote, signalout_fp_gui, signalout_fp_remote, signalout_fpu_gui, and signalout_fpu_remote.

Referenced by main().

static void filter_task_fir	(	float *	vect2,
		float *	vect1,
		int	b_length,
		float *	h,
		int	h_size
	)

static

Local function of filtering through floating point implementation of FIR filter.

References i, and j.

Referenced by filter_task().

static void filter_task_fir_fp	(	dsp32_t *	vect2,
		dsp32_t *	vect1,
		int	b_length,
		dsp32_t *	h,
		int	h_size
	)

static

Local function of filtering through fixed point implementation of FIR filter.

References i, and j.

Referenced by filter_task().

void filter_task_init ( void )

Filter Task Init Function.

Referenced by main().

A_ALIGNED dsp32_t fir_coef32b[FIR_COEF_SIZE]

Initial value:

= {
    DSP32_Q(0.02213774312),
    DSP32_Q(0.02660861642),
    DSP32_Q(0.03103291928),
    DSP32_Q(0.03533215215),
    DSP32_Q(0.03942863824),
    DSP32_Q(0.04324724164),
    DSP32_Q(0.04671704392),
    DSP32_Q(0.04977293804),
    DSP32_Q(0.05235710024),
    DSP32_Q(0.05442030354),
    DSP32_Q(0.05592304013),
    DSP32_Q(0.05683642486),
    DSP32_Q(0.05714285714),
    DSP32_Q(0.05683642486),
    DSP32_Q(0.05592304013),
    DSP32_Q(0.05442030354),
    DSP32_Q(0.05235710024),
    DSP32_Q(0.04977293804),
    DSP32_Q(0.04671704392),
    DSP32_Q(0.04324724164),
    DSP32_Q(0.03942863824),
    DSP32_Q(0.03533215215),
    DSP32_Q(0.03103291928),
    DSP32_Q(0.02660861642),
}

Referenced by filter_task().

float fir_coef_fl[FIR_COEF_SIZE]

Initial value:

= {
    (0.02213774312f),
    (0.02660861642f),
    (0.03103291928f),
    (0.03533215215f),
    (0.03942863824f),
    (0.04324724164f),
    (0.04671704392f),
    (0.04977293804f),
    (0.05235710024f),
    (0.05442030354f),
    (0.05592304013f),
    (0.05683642486f),
    (0.05714285714f),
    (0.05683642486f),
    (0.05592304013f),
    (0.05442030354f),
    (0.05235710024f),
    (0.04977293804f),
    (0.04671704392f),
    (0.04324724164f),
    (0.03942863824f),
    (0.03533215215f),
    (0.03103291928f),
    (0.02660861642f),
    (0.02213774312f)
}

Referenced by filter_task().

dsp16_t signalin_noise_gui[GUI_BUFFER_LENGTH]

Reference to Signal In + Noise Signal Buff 16-bit fixed point Format scaled in GUI format for the GUI task.

volatile float signalin_noise_remote[GUI_BUFFER_LENGTH]

Reference to Signal In + Noise Signal Buff in floating point Format scaled for the remote task.

A_ALIGNED dsp16_t signalout_fp_gui[GUI_BUFFER_LENGTH]

Reference to Filtered Signal through 16-bit fixed point Format scaled in GUI format for the GUI task.

Referenced by filter_task(), and gui_task().

volatile float signalout_fp_remote[GUI_BUFFER_LENGTH]

Reference to Filtered Signal through 16-bit fixed point Format scaled for the remote task.

Referenced by filter_task(), and remote_task().

A_ALIGNED dsp16_t signalout_fpu_gui[GUI_BUFFER_LENGTH]

Reference to Filtered Signal through floating point Format scaled in GUI format for the GUI task.

Referenced by filter_task(), and gui_task().

volatile float signalout_fpu_remote[GUI_BUFFER_LENGTH]

Reference to Filtered Signal through floating point Format scaled for the remote task.

Referenced by filter_task(), and remote_task().

float w[FIR_COEF_SIZE]

Floating Point Implementation of FIR Filter.

Referenced by Adam7_deinterlace(), dsp16_win_black(), dsp16_win_hamm(), dsp16_win_hann(), dsp16_win_welch(), dsp32_win_black(), dsp32_win_hamm(), dsp32_win_hann(), dsp32_win_welch(), and postProcessScanlines().

dsp32_t w_fp[FIR_COEF_SIZE]

Fixed Point Implementation of FIR Filter in 32-bits format.

Microchip® Advanced Software Framework

Macros

Functions

Variables