使用 IQS525 和 STM32L073RZ 沉浸在无缝控制的世界

/*!
 * @file main.c
 * @brief TouchPad2 Click example
 *
 * # Description
 * This library contains API for the TouchPad 2 Click driver.
 * The library contains drivers to get touch details,
 * the number of touches, X and Y coordinates and touch strength. 
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes I2C driver, check communication and reads device version information.
 *
 * ## Application Task
 * This is an example that demonstrates the use of the TouchPad 2 Click board. 
 * Read XY data consisting of a status byte, the number of touches,
 * X and Y coordinates and touch strength data. 
 * Results are being sent to the Usart Terminal where you can track their changes.
 *
 * @author Nenad Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "touchpad2.h"

static touchpad2_t touchpad2;
static log_t logger;
touchpad2_ver_info_t ver_info;
touchpad2_touch_t touch_data;

void application_init ( void ) {
    log_cfg_t log_cfg;              /**< Logger config object. */
    touchpad2_cfg_t touchpad2_cfg;  /**< Click config object. */

    /** 
     * 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.

    touchpad2_cfg_setup( &touchpad2_cfg );
    TOUCHPAD2_MAP_MIKROBUS( touchpad2_cfg, MIKROBUS_1 );
    err_t init_flag = touchpad2_init( &touchpad2, &touchpad2_cfg );
    if ( init_flag == I2C_MASTER_ERROR ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    touchpad2_default_cfg ( &touchpad2 );
    log_info( &logger, " Application Task " );
    Delay_ms( 1000 );
    
    touchpad2_check_version( &touchpad2, &ver_info );
    Delay_ms( 100 );
    
    if ( ver_info.product_num != TOUCHPAD2_IQS525_PRODUCT_NUMBER ) {
        log_error( &logger, " Communication Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    
    log_printf( &logger, "------------------------\r\n" );
    log_printf( &logger, " Product number : %u \r\n", ver_info.product_num );
    log_printf( &logger, " Project number : %u \r\n", ver_info.projec_num );
    log_printf( &logger, " Version        : %.1f \r\n", ver_info.version );
    log_printf( &logger, " HW ID          : %u \r\n", ver_info.hw_id );
    log_printf( &logger, " HW Revision    : %u \r\n", ver_info.hw_revision );
    log_printf( &logger, "------------------------\r\n" );
    Delay_ms( 1000 );
    
    log_printf( &logger, " Waiting for a new touch\r\n" );
    log_printf( &logger, "------------------------\r\n" );
    Delay_ms( 100 );
}

void application_task ( void ) {
   
    touchpad2_wait_ready( &touchpad2 );
    
    touchpad2_get_touch ( &touchpad2, &touch_data );
    Delay_ms( 100 );
    
    if ( ( touch_data.id_tag == TOUCHPAD2_ID_TAG_TOUCH_1 ) || 
         ( touch_data.id_tag == TOUCHPAD2_ID_TAG_TOUCH_2 ) ||
         ( touch_data.id_tag == TOUCHPAD2_ID_TAG_TOUCH_3 ) ||
         ( touch_data.id_tag == TOUCHPAD2_ID_TAG_TOUCH_4 ) ||
         ( touch_data.id_tag == TOUCHPAD2_ID_TAG_TOUCH_5 ) ) {
        log_printf( &logger, "  Number of touches : %d \r\n", ( uint16_t ) touch_data.no_of_fingers );
        log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
        log_printf( &logger, "  Coordinate X = %d \r\n", touch_data.x_pos );
        log_printf( &logger, "  Coordinate Y = %d \r\n", touch_data.y_pos );
        log_printf( &logger, "- - - - - - - - - - - - -\r\n" );
        log_printf( &logger, "  Touch Strength   : %u  \r\n", ( uint16_t ) touch_data.touch_str );
        log_printf( &logger, "------------------------ \r\n" );
        Delay_ms( 500 );    
    }
}

void main ( void ) {
    application_init( );

    for ( ; ; ) {
        application_task( );
    }
}

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