CC1310的触摸功能怎么实现

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/*
 *  ======== gpiointerrupt.c ========
 */
#include <stdint.h>
#include <stddef.h>

/* Driver Header files */
#include <ti/drivers/GPIO.h>

/* Example/Board Header files */
#include "Board.h"

/* variable to be read by GUI Composer */
int count = 0;

/*
 *  ======== gpioButtonFxn0 ========
 *  Callback function for the GPIO interrupt on Board_GPIO_BUTTON0.
 */
void gpioButtonFxn0(uint_least8_t index)
{
    /* Clear the GPIO interrupt and toggle an LED */
    GPIO_toggle(Board_GPIO_LED0);

    if (count++ == 100) {
        count = 0;
    }
}

/*
 *  ======== gpioButtonFxn1 ========
 *  Callback function for the GPIO interrupt on Board_GPIO_BUTTON1.
 *  This may not be used for all boards.
 */
void gpioButtonFxn1(uint_least8_t index)
{
    /* Clear the GPIO interrupt and toggle an LED */
    GPIO_toggle(Board_GPIO_LED1);

    if (count++ == 100) {
        count = 0;
    }
}

/*
 *  ======== mainThread ========
 */
void *mainThread(void *arg0)
{
    /* Call driver init functions */
    GPIO_init();

    /* Turn on user LED */
    GPIO_write(Board_GPIO_LED0, Board_GPIO_LED_ON);

    /* install Button callback */
    GPIO_setCallback(Board_GPIO_BUTTON0, gpioButtonFxn0);

    /* Enable interrupts */
    GPIO_enableInt(Board_GPIO_BUTTON0);

    /*
     *  If more than one input pin is available for your device, interrupts
     *  will be enabled on Board_GPIO_BUTTON1.
     */
    if (Board_GPIO_BUTTON0 != Board_GPIO_BUTTON1) {
        /* Install Button callback */
        GPIO_setCallback(Board_GPIO_BUTTON1, gpioButtonFxn1);
        GPIO_enableInt(Board_GPIO_BUTTON1);
    }

    return (NULL);
}