tp_mikroe.h File Reference

Go to the source code of this file.

Data Structures
struct	tp_mikroe_calibration_data_t
	Calibration data structure. More...
struct	tp_mikroe_pressure_threshold_t
	Pressure threshold data structure. More...
struct	tp_mikroe_cfg_t
	TP_MIKROE Configuration Object. More...
struct	tp_mikroe_t
	TP_MIKROE Context Object. More...

Macros
#define	VREF_VALUE   3.3f
	Defines value for voltage reference. More...
#define	TP_MIKROE_CALIBRATION_XMIN   0
	X coordinate of the bottom left corner of the touch panel area. More...
#define	TP_MIKROE_CALIBRATION_XMAX   0
	X coordinate of the upper right corner of the touch panel area. More...
#define	TP_MIKROE_CALIBRATION_YMIN   0
	Y coordinate of the bottom left corner of the touch panel area. More...
#define	TP_MIKROE_CALIBRATION_YMAX   0
	Y coordinate of the upper right corner of the touch panel area. More...
#define	TP_MIKROE_PRESSURE_THRESHOLD_LOWER   0
	Lower threshold value. More...
#define	TP_MIKROE_PRESSURE_THRESHOLD_UPPER   0
	Upper threshold value. More...
#define	TP_MIKROE_MAP_PINS(tp_mikroe_cfg)
	Mapping for ADC config structure. More...
#define	TP_MIKROE_ADC_CONFIG(cfg)
	TP_MIKROE ADC Configuration Object. More...
#define	SET_PEN()   gl_set_pen( GL_WHITE, 4 );
	Configure pen for drawing arrows during touch panel calibration. More...
#define	DRAW_ARROW_TOP_LEFT()
	Draw top left arrow during touch panel calibration. More...
#define	DRAW_ARROW_TOP_RIGHT()
	Draw top right arrow during touch panel calibration. More...
#define	DRAW_ARROW_BOTTOM_LEFT()
	Draw bottom left arrow during touch panel calibration. More...
#define	DRAW_ARROW_BOTTOM_RIGHT()
	Draw bottom right arrow during touch panel calibration. More...

Functions
tp_err_t	tp_mikroe_process (tp_mikroe_t *ctx)
	Function processing events. More...
void	tp_mikroe_gesture (tp_mikroe_t *ctx, tp_event_t *event)
	Read gesture information. More...
tp_event_t	tp_mikroe_press_detect (tp_mikroe_t *ctx)
	Press detection function. More...
void	tp_mikroe_press_coordinates (tp_mikroe_t *ctx, tp_touch_coord_t *touch_item)
	Copies touch information from context object to touch item object. More...
void	tp_mikroe_calibrate (tp_t *tp_instance)
	Calibrates variables used for converting raw TP_MIKROE ADC values to pixel coordinates. More...
void	tp_mikroe_get_calibration_data (tp_mikroe_t *ctx, tp_mikroe_calibration_data_t *cdata)
	Utility function used for getting a copy of current calibration data. More...
void	tp_mikroe_set_calibration_data (tp_mikroe_t *ctx, const tp_mikroe_calibration_data_t *cdata)
	Utility function used for setting calibration data. More...
void	tp_mikroe_set_pressure_threshold_level (tp_mikroe_cfg_t *cfg, tp_mikroe_pressure_threshold_t pressure)
	Utility function used for setting threshold levels. More...
bool	tp_mikroe_check_pressure (tp_mikroe_t *ctx, uint16_t *x_pos, uint16_t *y_pos)
	Function for reading raw ADC data. More...
void	tp_mikroe_set_threshold (tp_mikroe_t *ctx, uint16_t threshold_upper, uint16_t threshold_lower)
	Utility function used for setting threshold levels. More...
void	tp_mikroe_update_ctx_coords (tp_mikroe_t *ctx, uint16_t x_pos, uint16_t y_pos)
	Converts x_pos & y_pos raw ADC values to coordinate values and stores them in 'touch point 0' ctx member. More...
void	tp_mikroe_calibrate_point (tp_mikroe_t *ctx, bool calibration_points_uninitialized)
	Utility function used for calibration. More...
char	tp_mikroe_pressure_level_detect (tp_mikroe_t *ctx)
	Function used for checking pressure levels. More...
void	tp_mikroe_cfg_setup (tp_mikroe_cfg_t *cfg)
	TP_MIKROE Configuration setup Function. More...
tp_err_t	tp_mikroe_init_tp (tp_mikroe_t *ctx, tp_mikroe_cfg_t *cfg, tp_drv_t *drv)
	TP_MIKROE Touch Panel initialization. This function initializes TP_MIKROE context object using configuration values from TP_MIKROE configuration object and allows touch panel driver interface object to be linked with TP_MIKROE driver functions. More...
void	tp_mikroe_default_cfg_adc (tp_mikroe_t *ctx)
	TP_MIKROE ADC pin configuration function. More...

Macro Definition Documentation

VREF_VALUE

#define VREF_VALUE   3.3f

Defines value for voltage reference.

TP_MIKROE_CALIBRATION_XMIN

#define TP_MIKROE_CALIBRATION_XMIN   0

X coordinate of the bottom left corner of the touch panel area.

TP_MIKROE_CALIBRATION_XMAX

#define TP_MIKROE_CALIBRATION_XMAX   0

X coordinate of the upper right corner of the touch panel area.

TP_MIKROE_CALIBRATION_YMIN

#define TP_MIKROE_CALIBRATION_YMIN   0

Y coordinate of the bottom left corner of the touch panel area.

TP_MIKROE_CALIBRATION_YMAX

#define TP_MIKROE_CALIBRATION_YMAX   0

Y coordinate of the upper right corner of the touch panel area.

TP_MIKROE_PRESSURE_THRESHOLD_LOWER

#define TP_MIKROE_PRESSURE_THRESHOLD_LOWER   0

Lower threshold value.

TP_MIKROE_PRESSURE_THRESHOLD_UPPER

#define TP_MIKROE_PRESSURE_THRESHOLD_UPPER   0

Upper threshold value.

TP_MIKROE_MAP_PINS

#define TP_MIKROE_MAP_PINS

(

tp_mikroe_cfg

)

Value:

tp_mikroe_cfg.left = TP_MIKROE_XL;\
 tp_mikroe_cfg.right = TP_MIKROE_XR;\
 tp_mikroe_cfg.up = TP_MIKROE_YU;\
 tp_mikroe_cfg.down = TP_MIKROE_YD;

TP_MIKROE_ADC_CONFIG

#define TP_MIKROE_ADC_CONFIG

(

cfg

)

Value:

cfg->analog_in_cfg_read_x.resolution = ANALOG_IN_RESOLUTION_CMAKE; \
 cfg->analog_in_cfg_read_y.resolution = ANALOG_IN_RESOLUTION_CMAKE; \
 cfg->analog_in_cfg_read_x.input_pin = TP_READ_X_CMAKE; \
 cfg->analog_in_cfg_read_y.input_pin = TP_READ_Y_CMAKE; \
 cfg->analog_in_cfg_read_x.vref_input = ANALOG_IN_VREF_CMAKE; \
 cfg->analog_in_cfg_read_y.vref_input = ANALOG_IN_VREF_CMAKE; \
 cfg->analog_in_cfg_read_x.vref_value = VREF_VALUE; \
 cfg->analog_in_cfg_read_y.vref_value = VREF_VALUE;

ADC configuration object definition for TP_MIKROE touch controller.

SET_PEN

#define SET_PEN

(

)

gl_set_pen( GL_WHITE, 4 );

Configure pen for drawing arrows during touch panel calibration.

DRAW_ARROW_TOP_LEFT

#define DRAW_ARROW_TOP_LEFT

(

)

Value:

gl_clear( GL_BLACK ); \
 gl_draw_line( 0, 0, 10, 0 ); \
 gl_draw_line( 0, 0, 0, 10 ); \
 gl_draw_line( 0, 0, 15, 15 );

Draw top left arrow during touch panel calibration.

DRAW_ARROW_TOP_RIGHT

#define DRAW_ARROW_TOP_RIGHT

(

)

Value:

gl_clear( GL_BLACK ); \
 gl_draw_line( 320, 0, 320, 10 ); \
 gl_draw_line( 320, 0, 310, 0 ); \
 gl_draw_line( 320, 0, 305, 15 );

Draw top right arrow during touch panel calibration.

DRAW_ARROW_BOTTOM_LEFT

#define DRAW_ARROW_BOTTOM_LEFT

(

)

Value:

gl_clear( GL_BLACK ); \
 gl_draw_line( 0, 240, 0, 230 ); \
 gl_draw_line( 0, 240, 10, 240 ); \
 gl_draw_line( 0, 240, 15, 225 );

Draw bottom left arrow during touch panel calibration.

DRAW_ARROW_BOTTOM_RIGHT

#define DRAW_ARROW_BOTTOM_RIGHT

(

)

Value:

gl_clear( GL_BLACK ); \
 gl_draw_line( 320, 240, 320, 230 ); \
 gl_draw_line( 320, 240, 310, 240 ); \
 gl_draw_line( 320, 240, 305, 225 );

Draw bottom right arrow during touch panel calibration.