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Question

Hi, 
 I am using nrf52832 with sdk11 and s132.I am using ble_app_beacon example wherein I want to advertise with different address after one power cycle. 
 In ble_stack_init ()function,I am doing as below; 
 ble_gap_addr_t addr;
addr.addr_type = BLE_GAP_ADDR_TYPE_RANDOM_STATIC 
err_code = sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_AUTO, &addr);
APP_ERROR_CHECK(err_code);
 
 but I am not getting the advertisement. 
 What should be done to make it advertise with different address after one power cycle?

Joakim Jakobsen · Accepted Answer

Hi Anuja! 
 If you take a look at the sd_ble_gap_address_set() function, you can see that; 
 
 NOTE: 
If the address cycle mode is BLE_GAP_ADDR_CYCLE_MODE_AUTO, the
address type is required to be
BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE
or
BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE.
The given address is ignored and the
SoftDevice will generate a new private
address automatically every
BLE_GAP_DEFAULT_PRIVATE_ADDR_CYCLE_INTERVAL_S seconds. 
If this API call is used
again with the same parameters, the
SoftDevice will immediately generate a
new private address to replace the
current address.
If the application wishes to use a BLE_GAP_ADDR_TYPE_PUBLIC or
BLE_GAP_ADDR_TYPE_RANDOM_STATIC
address, the cycle mode must be
BLE_GAP_ADDR_CYCLE_MODE_NONE. 
 
 In short, to use the BLE_GAP_ADDR_CYCLE_MODE_AUTO , the address type must be either BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE or BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE . 
 Best regards, 
Joakim.

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