I started development with the S132 (SDK 15.0.0) peripheral example "blinky". After some modification, it handles all necessary communication with my phone flawlessly. Now, I would like to add a concurrent observer role that will allow me to listen for non-connectable beacons while maintaining a connection to my phone. After reading the S132 soft device specification and perusing the API reference, I am still not sure how to accomplish this. So far, I've been using the S132 central example "blinky" as a template.
I transplanted db_discovery_init() and lbs_c_init() from the initialization routine in the central example to my working project, added the appropriate files to the project, and adjusted sdk_config.h to enable the database discovery module, the advertising module, and the LBS client.
Now, on connection event, BLE_GAP_EVT_CONNECTED, I execute observe_start():
static uint8_t ad_buffer[BLE_GAP_SCAN_BUFFER_MIN];
static ble_data_t observerAdBuf =
{
ad_buffer,
BLE_GAP_SCAN_BUFFER_MIN
};
static ble_gap_scan_params_t scanParameters =
{
0, //Accept extended advertising packets?
0, //Report incomplete events? (only relevant to extended scanning)
0, //Perform active scanning by sending scan requests?
BLE_GAP_SCAN_FP_ACCEPT_ALL, //Accept all advertising packets except directed advertising packets not addressed to this device.
BLE_GAP_PHY_1MBPS, //Bitfield of PHYs to scan on.
0x0100, //Scan interval, in 625us increments
0x0100, //Scan window, in 625us increments
0x0000, //Scan timeout, in 10ms increments (0 disables timeout)
0 //Channel mask for primary and secondary advertising channels. At least one of the primary channels, that is channel index 37-39, must be set to 0.
};
void observe_start( void )
{
sd_ble_gap_scan_stop();
sd_ble_gap_scan_start( &scanParameters, &observerAdBuf );
}
The function runs as expected and sd_ble_gap_scan_start returns NRF_SUCCESS. My expectation at this point was that advertising packets would now trigger a BLE_GAP_EVT_ADV_REPORT event. Except, BLE_GAP_EVT_ADV_REPORT never triggers. The device still connects and communicates with the phone, but advertising packets are never reported.
I'm sure that I'm missing an obvious step, but I'm not sure what that step is. Anything to point me in the correct direction would be greatly appreciated.
