e_micro.c File Reference

Accessing the microphone data. More...

#include "p30f6014A.h"
#include "e_ad_conv.h"
#include "../../motor_led/e_epuck_ports.h"

Functions
int	e_get_micro (unsigned int micro_id)
	Get the last value of a given micro.
int	e_get_micro_average (unsigned int micro_id, unsigned int filter_size)
	Get the average on a given number of sample from a micro.
int	e_get_micro_volume (unsigned int micro_id)
	Get the difference between the highest and lowest sample.
void	e_get_micro_last_values (int micro_id, int *result, unsigned samples_nb)
	Write to a given array, the last values of one micro.
Variables
int	e_mic_scan [3][MIC_SAMP_NB]
unsigned int	e_last_mic_scan_id

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Detailed Description

Accessing the microphone data.

The functions of this file are made to deal with the microphones data. You can simply get the current value of a given microphone. You can know the volume of noise that the e-puck is enduring. You can average the signal with a specified size.

Author:

Code: Borter Jean-Joel
Doc: Jonathan Besuchet

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Function Documentation

int e_get_micro

(

unsigned int

micro_id

)

Get the last value of a given micro.

Parameters:

micro_id

micro's ID (0, 1, or 2) (use MIC0_BUFFER, MIC1_BUFFER , MIC2_BUFFER defined in e_micro.h)

Returns:

result last value of the micro

int e_get_micro_average	(	unsigned int	micro_id,
		unsigned int	filter_size
	)

Get the average on a given number of sample from a micro.

Parameters:

	micro_id	micro's ID (0, 1, or 2) (use MIC0_BUFFER, MIC1_BUFFER , MIC2_BUFFER defined in e_micro.h)
	filter_size	number of sample to average

Returns:

result last value of the micro

void e_get_micro_last_values	(	int	micro_id,
		int *	result,
		unsigned	samples_nb
	)

Write to a given array, the last values of one micro.

Write to a given array, the last values of one micro. The values are stored with the last one first, and the older one at the end of the array.
[ t ][ t-1 ][ t-2 ][ t-3 ]...[ t-(samples_nb-1) ][ t-samples_nb ]

Parameters:

	micro_id	micro's ID (0, 1, or 2) (use MIC0_BUFFER, MIC1_BUFFER , MIC2_BUFFER defined in e_micro.h)
	*result	pointer on the result array
	samples_nb	size of the result array (must be between 1 and MIC_SAMP_NB)

int e_get_micro_volume

(

unsigned int

micro_id

)

Get the difference between the highest and lowest sample.

Parameters:

micro_id

micro's ID (0, 1, or 2) (use MIC0_BUFFER, MIC1_BUFFER , MIC2_BUFFER defined in e_micro.h)

Returns:

result volume

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Variable Documentation

unsigned int e_last_mic_scan_id

int e_mic_scan[3][MIC_SAMP_NB]

Array to store the mic values

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