nrf51822 can't sleep

RE: nrf51822 can't sleep

Håkon Alseth — Wed, 02 Jul 2014 15:39:52 GMT

Could you see if this fix helps you out? devzone.nordicsemi.com/.../

RE: nrf51822 can't sleep

Håkon Alseth — Thu, 19 Jun 2014 10:41:33 GMT

I cannot seem to reproduce the issue you are seeing wrt. to bonding information. I've tested it with MasterControlPanel, and the CRC/m_crc_sys_attr is correctly calculated at my end, causing no erase-operation.

Are you testing with an unchanged example? If not, do you see the same behavior then?
What central are you connecting to? Win8/android/iOS?

RE: nrf51822 can't sleep

arthur — Thu, 19 Jun 2014 03:16:13 GMT

The issue is caused by a global variable from Desktop 2 v2.2.1 not initialized and hence result in FW triggering a flash erase command due to sys_attr_changed() function returning incorrect status.

To fix this issue we need to add 1 line of code (!!!!!!!!!!) in ble_bondmngr_init() function @ ble_bondmngr.c file:

/*********************************************************************/ uint32_t ble_bondmngr_init(ble_bondmngr_init_t

p_init) { pstorage_module_param_t param; uint32_t err_code;

if (p_init->error_handler == NULL) { return NRF_ERROR_INVALID_PARAM; }

if (BLE_BONDMNGR_MAX_BONDED_CENTRALS > MAX_BONDS_IN_FLASH) { return NRF_ERROR_DATA_SIZE; } : : :

m_central.bond.central_handle = INVALID_CENTRAL_HANDLE; m_conn_handle = BLE_CONN_HANDLE_INVALID; m_centrals_in_db_count = 0; m_bond_info_in_flash_count = 0; m_sys_attr_in_flash_count = 0;

m_crc_sys_attr = crc16_compute( NULL, 0, NULL );//!!!!!!!!!!

SECURITY_STATUS_RESET();

: : : } /**********************************************************************/

This will initialize the global variable “m_crc_sys_attr” and prevent “sys_attr_changed() function from returning incorrect status.

It is also inappropriate for customer to set the DEFAULT_BLE_INACTIVITY_DISCONNECT_PERIOD to be shorter then advertising timeout period. Customer should configure this inactivity period to expire after BLE advertising has timeout and system is really idle.

RE: nrf51822 can't sleep

arthur — Thu, 19 Jun 2014 03:15:53 GMT

thank for your reply.i have the solutions for my proble.

RE: nrf51822 can't sleep

Håkon Alseth — Mon, 16 Jun 2014 12:26:27 GMT

I am not sure if your problem is with the system off power management or with the pstorage module. This specific example has a prepare routine before entering systemoff, which is then done based on which protocol the example is running (proprietary or BLE).

Also, please see if you have any asserts occurring in your application by enabling the assert-handler: devzone.nordicsemi.com/.../