RE: About RSSI of BLE

Håkon Alseth — Mon, 02 Jun 2014 15:55:48 GMT

This issue was fixed in version 6.0.0 of the S110 SoftDevice.

Here's a quote from the release notes: Fixed an issue where calling sd_ble_gap_rssi_stop() after connection had ended would cause an assert. In addition, RSSI will now be stopped automatically when the connection ends (NRFFOETT-499, DRGN-3131).

RE: About RSSI of BLE

Håkon Alseth — Mon, 05 Aug 2013 12:45:45 GMT

Hi,

We have recently come across this bug, where the RSSI stop function does give back an error code. The connection handle is actually invalid once the "BLE_GAP_EVT_DISCONNECTED" is called, so this is why you are seeing an assert at this point. The bug from Nordic's side is that the RSSI is not stopped properly after a disconnect occurs.

You can work around this by: call function "(void)sd_ble_gap_rssi_stop(m_conn_handle);" before starting RSSI in BLE_GAP_EVT_CONNECTED.

Another way is to use a variable to stop the RSSI, as the attached .c file shows.

You should then not call sd_ble_gap_rssi_stop in the "BLE_GAP_EVT_DISCONNECTED" event.

Best regards Håkon

sd_rssi_wrkaround.c