How to stop watch dog

[james]

hi, I'am working in a project. I start a watch dog in that project,but I need to stop the watch dog something.And I don't know how to stop, can anybody help me.

[james]

how should I feed the watch dog in bootloarder. I had try to feed the dog like that,but it couldn't work fine after dfu.

/**@brief Function for initialization of time handle.
 */
//timer calender
static void timer_index_feed_wd( void *p_context )
{
   //fed the dog
	 NRF_WDT->RR[0] = WDT_RR_RR_Reload;
}


/**@brief Function for initializing the timer handler module (app_timer).
 */
static void timers_init(void)
{
    // Initialize timer module, making it use the scheduler.
    APP_TIMER_APPSH_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, true);
	
	  uint32_t err_code;
	  err_code = app_timer_create( &FEED_WD_TIMER, APP_TIMER_MODE_REPEATED, timer_index_feed_wd );
    APP_ERROR_CHECK(err_code); 
}

main()
{
    .....
if (dfu_start || (!bootloader_app_is_valid(DFU_BANK_0_REGION_START)))
    {
				DisplayDFU( );
			  
				//stop timer
			  err_code = app_timer_start(FEED_WD_TIMER, FEED_WATCH_DOG_PERIOD, NULL);
				APP_ERROR_CHECK(err_code);
			
        // Initiate an update of the firmware.
        err_code = bootloader_dfu_start();
        APP_ERROR_CHECK(err_code);
    }

    if (bootloader_app_is_valid(DFU_BANK_0_REGION_START) && !bootloader_dfu_sd_in_progress())
    {
        // Select a bank region to use as application region.
        // @note: Only applications running from DFU_BANK_0_REGION_START is supported.	
				err_code = app_timer_stop( FEED_WD_TIMER );
				APP_ERROR_CHECK(err_code);
			
        bootloader_app_start(DFU_BANK_0_REGION_START);
    }
 ....
}