Testing LE Ping between two nrf52s

[Youssif]

Hi

I am trying to test the LE Ping feature between two nrf52s. I am enabling the LE Ping feature from one device via:

ble_opt_t opt = {0};

opt.gap_opt.auth_payload_timeout.conn_handle = VaidHandle;
opt.gap_opt.auth_payload_timeout.auth_payload_timeout = 20;


retVal = sd_ble_opt_set(BLE_GAP_OPT_AUTH_PAYLOAD_TIMEOUT, &opt)

This function is working properly and retVal is returning NRF_SUCCESS. However, I want to test the functionality against a remote device but I don't know how. On the remote device I am printing a message when getting BLE_GAP_EVT_TIMEOUT and the source is BLE_GAP_TIMEOUT_SRC_AUTH_PAYLOAD, but nothing is printed out (all other events are printed without an issue). I tried enabling the pings on invalid connection handles and the function failed. I tried enabled the pings then abruptly breaking the connection from the remote end, but I got no event either.

Any recommendations/ideas on how to test this?

We are using softdevice S132 v3.0.0 on nrf52.

Thanks

[Hung Bui]

Hi Youssif,

LE Ping is only sent when there is encryption on the link and when there is no encrypted packet exchanged between the peer (only empty packet sent) until timeout is hit.

You may want to use a sniffer to capture on air activity.