touch.c File Reference

Functions for interfacing touch.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include "touch.h"

Macros
#define	GET_SENSOR_STATE(SENSOR_NUMBER)
#define	TIMER_PERIOD   TICKS_PER_MS * qt_measurement_period_msec

The timing information for timer to fire periodically to measure touch
uint16_t	qt_measurement_period_msec = 25u
	Timer period in msec. More...
qt_touch_lib_config_data_t	qt_config_data
qt_touch_lib_measure_data_t	qt_measure_data
TOUCH_DATA_T	SNS_array [2][2]
TOUCH_DATA_T	SNSK_array [2][2]
qt_touch_lib_measure_data_t *	pqt_measure_data = &qt_measure_data
static volatile bool	time_to_measure_touch = false
static volatile uint16_t	current_time_ms_touch = 0
unsigned int	gMsTimeout
int16_t	qt_get_sensor_delta (uint8_t sensor)
static void	qt_set_parameters (void)
	qt_set_parameters function This will fill the default threshold values in the configuration data structure.But User can change the values of these parameters . More...
static void	config_sensor (void)
	Configures the sensors as keys and assigns the channel numbers. More...
static void	init_timer_isr (void)
	Configures timer ISR to fire regularly. More...
static void	example_cca_interrupt_callback (void)
void	touch_init (void)
	Configures touch library and measurement setup. More...
bool	check_touch_key_pressed (void)
	Checks whether the QTouch key is pressed. More...

#define GET_SENSOR_STATE

(

SENSOR_NUMBER

)

Value:

qt_measure_data.qt_touch_status.sensor_states[(SENSOR_NUMBER/8)] \
        & (1 << (SENSOR_NUMBER % 8))

Referenced by check_touch_key_pressed().

#define TIMER_PERIOD   TICKS_PER_MS * qt_measurement_period_msec

Referenced by init_timer_isr().