about DFU on nrf51822 aa (use sdk v11,s130)

[Liu]

Hi.... I have a problem when i use dfu_dual_bank_ble_s130_pca10028 in sdk v11 on my board. cpu is nrf51822QFAA.it seems reset all the time. using keil debug, it's wrong on this point

dfu_init() in bootloader_dfu_start()

 in dfu_init()  there is a error on this statement 
err_code = pstorage_register(&storage_module_param, &m_storage_handle_app);

 go on.

in pstorage_register()

if (m_next_app_instance == PSTORAGE_NUM_OF_PAGES){return NRF_ERROR_NO_MEM;}

PSTORAGE_NUM_OF_PAGES is defined 1, and i find the pstorage_register() is called onec before in bootloader_init();
is there wrong steps i using the example? 

[Liu]

github.com/.../bootloader
here is. thanks a lot.