e_calc.c File Reference

Calculate the timing for the camera (two timers). More...

#include "e_po3030k.h"
#include "../../motor_led/e_epuck_ports.h"
#include "../../I2C/e_I2C_protocol.h"
#include "../../motor_led/e_init_port.h"

Defines
#define	ARRAY_ORIGINE_X   210
#define	ARRAY_ORIGINE_Y   7
#define	IRQ_PIX_LAT   1
Functions
int	e_po3030k_config_cam (unsigned int sensor_x1, unsigned int sensor_y1, unsigned int sensor_width, unsigned int sensor_height, unsigned int zoom_fact_width, unsigned int zoom_fact_height, int color_mode)
int	e_po3030k_get_bytes_per_pixel (int color_mode)
void	e_po3030k_init_cam (void)

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Detailed Description

Calculate the timing for the camera (two timers).

Author:

Philippe Rétornaz

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Define Documentation

#define ARRAY_ORIGINE_X   210

#define ARRAY_ORIGINE_Y   7

#define IRQ_PIX_LAT   1

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Function Documentation

int e_po3030k_config_cam	(	unsigned int	sensor_x1,
		unsigned int	sensor_y1,
		unsigned int	sensor_width,
		unsigned int	sensor_height,
		unsigned int	zoom_fact_width,
		unsigned int	zoom_fact_height,
		int	color_mode
	)

This function setup the internal timing of the camera to match the zoom, color mode and interest area.

Warning:

If the common deniminator of both zoom factor is 4 or 2, part of the subsampling is done by the camera ( QQVGA = 4, QVGA = 2 ). This increase the framerate by respectivly 4 or 2. Moreover greyscale is twice faster than color mode.

Parameters:

	sensor_x1	The X coordinate of the window's corner
	sensor_y1	The Y coordinate of the window's corner
	sensor_width	the Width of the interest area, in FULL sampling scale
	sensor_height	The Height of the insterest area, in FULL sampling scale
	zoom_fact_width	The subsampling to apply for the window's Width
	zoom_fact_height	The subsampling to apply for the window's Height
	color_mode	The color mode in which the camera should be configured

Returns:

Zero if the settings are correct, non-zero if an error occur

See also:

e_po3030k_write_cam_registers

int e_po3030k_get_bytes_per_pixel

(

int

color_mode

)

Return the number of bytes per pixel in the given color mode

Parameters:

color_mode

The given color mode

Returns:

The number of bytes per pixel in the given color mode

void e_po3030k_init_cam

(

void

)

Initialize the camera, must be called before any other function

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