使用 IQS266 和 STM32F446RE 创造具有先进控制功能的创新解决方案

/*!
 * \file 
 * \brief SwipeSwitch Click example
 * 
 * # Description
 * This Click is based on integrated touch controller featuring 2 receivers and 3 transmitters, 
 * allowing a 2x3 capacitive touch trackpad to be formed. By using a specific trace pattern on the PCB, 
 * the Click board is able to sense several different swipe gestures, offering several different configuration parameters.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initialization and configuration of the chip for measurement
 * 
 * ## Application Task  
 * In the first test mode, it checks whether or not a new event ocurred (TAP or SWIPE). 
 * If it did, it writes out data regarding that event via UART.
 * In the second test mode, X and Y coordinates are being read and logged via UART.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "swipeswitch.h"

#define SWIPESWITCH_GESTURE_MODE        0    
#define SWIPESWITCH_POSITION_MODE       1                

// ------------------------------------------------------------------ VARIABLES

static swipeswitch_t swipeswitch;
static log_t logger;

static uint8_t x_coordinate = 0;
static uint8_t y_coordinate = 0;
static uint8_t old_x_coordinate = 0;
static uint8_t old_y_coordinate = 0;
static uint8_t events = 0;
static uint8_t gestures = 0;
static uint8_t display_mode;

// ------------------------------------------------------ APPLICATION FUNCTIONS

void application_init ( void )
{
    log_cfg_t log_cfg;
    swipeswitch_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    swipeswitch_cfg_setup( &cfg );
    SWIPESWITCH_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    swipeswitch_init( &swipeswitch, &cfg );
    Delay_ms ( 300 );
    
    display_mode = SWIPESWITCH_GESTURE_MODE;
    
    if ( display_mode == SWIPESWITCH_GESTURE_MODE)
    {
        log_printf( &logger, "<<< GESTURE MODE >>> \r\n" ); 
    }
    else if ( display_mode == SWIPESWITCH_POSITION_MODE)
    {
        log_printf( &logger, "<<< POSITION MODE >>> \r\n" ); 
    }
}

void application_task ( void )
{
    if ( display_mode == SWIPESWITCH_GESTURE_MODE)
    {
        events = swipeswitch_read_events( &swipeswitch );
        gestures = swipeswitch_read_gestures( &swipeswitch );

        
        if ( ( events & ( SWIPESWITCH_EVENT_SWIPE ) ) != 0 )
        {
            if ( ( gestures & SWIPESWITCH_GESTURE_SWIPE_UP ) != 0 )
            {
                log_printf( &logger, "SWIPE UP \r\n" );
            }
            if ( ( gestures & SWIPESWITCH_GESTURE_SWIPE_DOWN ) != 0 )
            {
                log_printf( &logger, "SWIPE DOWN \r\n" );
            }
            if ( ( gestures & SWIPESWITCH_GESTURE_SWIPE_LEFT ) != 0 )
            {
                log_printf( &logger, "SWIPE LEFT \r\n" );
            }
            if ( ( gestures & SWIPESWITCH_GESTURE_SWIPE_RIGHT ) != 0 )
            {
                log_printf( &logger, "SWIPE RIGHT \r\n" );
            }
        }
        
        else if ( ( events & ( SWIPESWITCH_EVENT_TAP ) ) != 0 )
        {
            log_printf( &logger,"TAP \r\n" );
        }
    }
    else if ( display_mode == SWIPESWITCH_POSITION_MODE)
    {
        x_coordinate = swipeswitch_read_x_coordinate( &swipeswitch );
        y_coordinate = swipeswitch_read_y_coordinate( &swipeswitch );

        if ( ( x_coordinate != old_x_coordinate) || ( y_coordinate != old_y_coordinate ) )
        {
            log_printf( &logger,"Coordinate : (%u , %u)\r\n", (uint16_t) x_coordinate, (uint16_t) y_coordinate );

            old_x_coordinate = x_coordinate;
            old_y_coordinate = y_coordinate;
        }
    }
    Delay_ms ( 300 );
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

// ------------------------------------------------------------------------ END