This file contains the AT32UC3L-EK demonstration application that interfaces with QTouchStudio and controls the LEDs with the touch sensors.

#include "board.h"
#include "conf_clock.h"
#include "tc.h"
#include "intc.h"
#include "gpio.h"
#include "delay.h"
#include "power_clocks_lib.h"
#include "touch_api_at32uc3l.h"
#include "qdebug.h"
#include "demo.h"

Macros
#define	DEMO_INIT_NB_AUTOMATIC_CHANGES 5
	Number of automatic LEDs intensity changes done at the beginning of the demo. More...

#define	EXAMPLE_DFLL_COARSE_FDFLL96 (150u)

#define	EXAMPLE_DFLL_FINE_FDFLL96 (65u)

#define	EXAMPLE_MEASUREMENT_PERIOD_MS (25u) /* The timing information for timer to fire periodically to measure touch. */

#define	EXAMPLE_RC_VALUE (6000u) /* configure timer for 1ms tick. */

#define	EXAMPLE_TC (&AVR32_TC0)

#define	EXAMPLE_TC_CHANNEL (0u)

#define	EXAMPLE_TC_IRQ (AVR32_TC0_IRQ0)

#define	EXAMPLE_TC_IRQ_GROUP (AVR32_TC0_IRQ_GROUP)

Functions
static touch_ret_t	config_uc3lek_touch_sensors (void)

static unsigned long	init_clock (unsigned long cpuclk_hz)

static void	init_system (void)

static void	init_timer (void)

int	main (void)

static void	tc_irq (void)

static void	touch_qm_measure_complete_callback (touch_measure_data_t *p_measure_data)

Variables
volatile uint16_t	current_time_ms_touch = 0u

static touch_general_config_t	general_config

uint16_t	measurement_period_ms = EXAMPLE_MEASUREMENT_PERIOD_MS
	Touch Measurement period in milliseconds. More...

touch_measure_data_t *	p_qm_measure_data = NULL
	QMatrix measured data pointer. More...

const uint8_t	qm_burst_length [QM_NUM_CHANNELS]

static touch_qm_config_t	qm_config

static uint8_t	qm_data_blk [PRIV_QM_DATA_BLK_SIZE]

volatile uint8_t	qm_measurement_done_touch = 0u
	Flag set by touch_qm_measure_complete_callback() function when a fresh Touch status is available. More...

volatile uint8_t	time_to_measure_touch = 0u

touch_config_t	touch_config
	Touch Library input configuration structure. More...

Parameters to pcl_configure_clocks().
static scif_gclk_opt_t	gc_dfllif_ref_opt = { SCIF_GCCTRL_SLOWCLOCK, 0, false}

static pcl_freq_param_t	pcl_dfll_freq_param

#define DEMO_INIT_NB_AUTOMATIC_CHANGES 5

Number of automatic LEDs intensity changes done at the beginning of the demo.

Referenced by main().

#define EXAMPLE_DFLL_COARSE_FDFLL96 (150u)

Referenced by local_start_highfreq_clock().

#define EXAMPLE_DFLL_FINE_FDFLL96 (65u)

Referenced by local_start_highfreq_clock().

#define EXAMPLE_MEASUREMENT_PERIOD_MS (25u) /* The timing information for timer to fire periodically to measure touch. */

#define EXAMPLE_RC_VALUE (6000u) /* configure timer for 1ms tick. */

Referenced by init_timer().

#define EXAMPLE_TC (&AVR32_TC0)

Referenced by init_timer(), and tc_irq().

#define EXAMPLE_TC_CHANNEL (0u)

Referenced by init_timer(), and tc_irq().

#define EXAMPLE_TC_IRQ (AVR32_TC0_IRQ0)

Referenced by main().

#define EXAMPLE_TC_IRQ_GROUP (AVR32_TC0_IRQ_GROUP)

static touch_ret_t config_uc3lek_touch_sensors ( void )

static

References HYST_6_25, NO_AKS_GROUP, RES_1_BIT, RES_8_BIT, SENSOR_TYPE_KEY, SENSOR_TYPE_ROTOR, touch_qm_sensor_config(), and TOUCH_SUCCESS.

Referenced by main().

static unsigned long init_clock ( unsigned long cpuclk_hz )

static

References pcl_configure_clocks(), pcl_dfll_freq_param, QM_GCLK_CAT_DIV, scif_gc_enable(), scif_gc_setup(), and SCIF_GCCTRL_DFLL0.

Referenced by init_system().

static void init_system ( void )

static

References EXAMPLE_CPUCLK_HZ, and init_clock().

Referenced by main().

static void init_timer ( void )

static

References tc_waveform_opt_t::channel, tc_interrupt_t::etrgs, EXAMPLE_RC_VALUE, EXAMPLE_TC, EXAMPLE_TC_CHANNEL, TC_CLOCK_SOURCE_TC3, tc_configure_interrupts(), TC_EVT_EFFECT_NOOP, tc_init_waveform(), TC_SEL_NO_EDGE, tc_start(), TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER, and tc_write_rc().

Referenced by main().

int main ( void )

References tag_touch_measure_data_t::acq_status, config_uc3lek_touch_sensors(), current_time_ms_touch, delay_ms, demo_automatic_ledshow_play(), DEMO_INIT_NB_AUTOMATIC_CHANGES, demo_init_pwma(), Disable_global_interrupt, tag_touch_qm_dma_t::dma_ch1, tag_touch_qm_dma_t::dma_ch2, Enable_global_interrupt, EXAMPLE_TC_IRQ, gpio_clr_gpio_pin(), gpio_tgl_gpio_pin(), init_system(), init_timer(), INTC_init_interrupts(), INTC_register_interrupt(), NORMAL_ACQ_MODE, tag_touch_measure_data_t::p_rotor_slider_values, tag_touch_measure_data_t::p_sensor_states, process_qtouchlib_data(), QDebug_Init(), QDebug_ProcessCommands(), QDebug_SendData(), qm_dma, QM_DMA_CHANNEL_0, QM_DMA_CHANNEL_1, qm_measurement_done_touch, SLEEP, tc_irq(), time_to_measure_touch, TOUCH_ACQ_INCOMPLETE, touch_event_dispatcher(), TOUCH_NO_ACTIVITY, touch_qm_measure_complete_callback(), touch_qm_sensors_calibrate(), touch_qm_sensors_init, touch_qm_sensors_start_acquisition(), and TOUCH_SUCCESS.

static void tc_irq ( void )

static

References current_time_ms_touch, EXAMPLE_TC, EXAMPLE_TC_CHANNEL, measurement_period_ms, tc_read_sr(), and time_to_measure_touch.

Referenced by main().

static void touch_qm_measure_complete_callback ( touch_measure_data_t * p_measure_data )

static

References qm_measurement_done_touch.

Referenced by main().

volatile uint16_t current_time_ms_touch = 0u

scif_gclk_opt_t gc_dfllif_ref_opt = { SCIF_GCCTRL_SLOWCLOCK, 0, false}

static

touch_general_config_t general_config

static

Initial value:

=
{
  TOUCH_SYNC_PIN_OPTION,                                                        
  TOUCH_SPREAD_SPECTRUM_MAX_DEV,                                                
  TOUCH_CSARES,                                                                 
  TOUCH_CSBRES                                                                  
}

uint16_t measurement_period_ms = EXAMPLE_MEASUREMENT_PERIOD_MS

Touch Measurement period in milliseconds.

This variable determines how often a new touch measurement must be done. Default value: Every 25 milliseconds.

touch_measure_data_t* p_qm_measure_data = NULL

QMatrix measured data pointer.

pcl_freq_param_t pcl_dfll_freq_param

static

Initial value:

= {
    .main_clk_src = PCL_MC_DFLL0,
    .cpu_f        = EXAMPLE_TARGET_MCUCLK_FREQ_HZ,
    .pba_f        = EXAMPLE_TARGET_PBACLK_FREQ_HZ,
    .pbb_f        = EXAMPLE_TARGET_PBACLK_FREQ_HZ,
    .dfll_f       = EXAMPLE_TARGET_DFLL_FREQ_HZ,
    .pextra_params = &gc_dfllif_ref_opt
}

Referenced by init_clock().

const uint8_t qm_burst_length[QM_NUM_CHANNELS]

Initial value:

touch_qm_config_t qm_config

static

uint8_t qm_data_blk[PRIV_QM_DATA_BLK_SIZE]

static

volatile uint8_t qm_measurement_done_touch = 0u

Flag set by touch_qm_measure_complete_callback() function when a fresh Touch status is available.

volatile uint8_t time_to_measure_touch = 0u

touch_config_t touch_config

Initial value:

=
{
  &qm_config,                                                                   
  NULL,                                                                         
  NULL,                                                                         
  NULL,                                                                         
  &general_config                                                               
}

Touch Library input configuration structure.

Microchip® Advanced Software Framework

Macros

Functions

Variables