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Extracting rssi from scanned packet.

Kryptons
Associate II

Hi,

I need to get the RSSI of scanned BLE packet. So I'm using le_advertising_event .

I found some one used the following code for that purpose.

rssi1 = le_advertising_event->Advertising_Report[0].RSSI;

but in the struct they mentioned that

/* WARNING: be careful when decoding advertising report as its raw format cannot be mapped on a C structure.

     The data and RSSI values could not be directly decoded from the RAM using the data and RSSI field from hci_le_advertising_report_event_rp0 structure.

     Instead they must be read by using offsets (please refer to BLE specification).

     RSSI = *(uint8_t*) (adv_report_data + le_advertising_event->Advertising_Report[0].Length_Data);

     */

(So I ran both codes and observed different output values.)

If anyone familiar with this activity, Can you tell which one is the best one?

1 REPLY 1
Portilha
Associate II

Hello, can you explain this better please?