Difficulty implementing switch double-click.

[schosdas]

Hello 

I'm trying to implement the click and double click and long click of a button in sdk v17.

Click and long click work fine.  But double-click doesn't work.

Code for entering button.

int click_count; //check click or double click
unsigned long timePress = 0;
unsigned long timePressLimit = 0;


static uint32_t pressed_time, released_time, pressed_duration = 0;
static bool pressed_cnt= false;

static uint32_t app_button_duration(void) //press time
{
  pressed_duration = (released_time - pressed_time)*2; //ms
  return pressed_duration;
}

static void app_button_init_time_variable(void)
{
  pressed_duration = 0; //press time
}


static void app_button_event_generator(void) //button press time
{
  ret_code_t err_code;

  app_button_init_time_variable();
}
 

static void app_button_event_handler(uint8_t pin_no, uint8_t button_action)
{
    ret_code_t err_code;
    static uint32_t first_pressed;
    static uint32_t long_pressed;

    switch (pin_no)
    {
      case BUTTON_1: 
        switch (button_action)
        {
          case APP_BUTTON_PUSH:
          {
            NRF_LOG_INFO("Button pressed...");
            printf("Button pressed");

            //get pressed time
            pressed_time = app_timer_cnt_get()*1000/32768;//milli-sec
            NRF_LOG_INFO("pressed_time: %d", (int)pressed_time);
            printf("pressed_time: %d\n", (int)pressed_time);
            pressed_cnt = true;

            PowerOff_timers_start(); //press timer count

            if(click_count == 0) //first click
            {
              printf("One click\n");
              timePress = app_timer_cnt_get()*1000/32768;
              timePressLimit = timePress + 500; //time press + 0.5sec
              click_count = 1;
            }

            else if(click_count == 1 && app_timer_cnt_get()*1000/32768 < timePressLimit) // double click, click time < timePressLimit
            {
              printf("Double Click!\n");
              
              //set variables back to 0
              timePress = 0;
              timePressLimit = 0;
              click_count = 0;
            }

            if(click_count == 1 && timePressLimit != 0 && app_timer_cnt_get()*1000/32768 > timePressLimit) //second click but time's up
            {
              printf("One click\n");
          
              //set variables back to 0
              timePress = 0;
              timePressLimit = 0;
              click_count = 0;
            }

          } break;

           case APP_BUTTON_RELEASE:
           {  
              NRF_LOG_INFO("Button releaed...");

              if (pressed_cnt)
              {
                released_time = app_timer_cnt_get()*1000/32768; //milli-sec
                NRF_LOG_INFO("released_time: %d", (int)released_time);
                printf("released_time: %d\n", (int)released_time);
              }

              pressed_cnt = false;

              PowerOff_timers_stop();
                
           } break;
        } 
      break;

      default:
         APP_ERROR_HANDLER(pin_no);
      break;
    }

    if(app_button_duration())
    {
      app_button_event_generator();
    }

    app_button_init_time_variable(); 
}


static void app_buttons_init(void)
{
  uint32_t err_code;

  static const app_button_cfg_t app_buttons[BUTTONS_NUMBER] =
  {
    {BUTTON_1, false, BUTTON_PULL, app_button_event_handler},
  };

  err_code = app_button_init((app_button_cfg_t *)app_buttons,
                                       BUTTONS_NUMBER,        // 1
                                       APP_TIMER_TICKS(50)); //debounce
  APP_ERROR_CHECK(err_code);
}

But there are two problems with this code.
1. Double-click will stop the board. (A single click or long push seems fine.)

2. When I click a button, I must be able to determine whether it is a single click or a double click. However, this code also executes a single click code when double-click.
(There should be time to wait for the next button after pressing the button to determine if there is a double click)

When debugging, double click to print the following error in the terminal.

<info> app: 13
<info> app: 14
<info> app: 12
<info> app: 12
<info> app: 12
<info> app: 13
<info> app: 14
<info> app: 12
<info> app: 12
<info> app: 12
<info> app: 13
<info> app: 14
<info> app: 12
<info> app: 12
<info> app: 12
<info> app: 13
<info> app: 14
<info> app: 12
<info> app: 12
<info> app: 12
<info> app: 13
<info> app: 14
<info> app: 12
<info> app: 12
<info> app: 12
<info> app: Button pressed...
<info> app: pressed_time: 8572
<info> app: Button releaed...
<info> app: released_time: 8598
<info> app: 11
<info> app: 9
<info> app: 10
<info> app: 10
<info> app: 12
<info> app: 11
<info> app: 9
Logs dropped (1)
<info> app: 10
Logs dropped (1)
<info> app: 10
Logs dropped (1)
<info> app: 12
Logs dropped (1)
<info> app: 11
Logs dropped (1)
<info> app: 9
Logs dropped (1)
<info> app: 10
Logs dropped (1)
<info> app: 10
Logs dropped (1)
<info> app: 12
Logs dropped (1)
<info> app: 11

Can I know the cause of this error and what I can refer to about double-click?

Thank you.

[ovrebekk]

Sounds good. 

If you have more questions just let me know