Hello,
using BTool with USB dongle as LL master and keyfob as LL slave we performed some RF link tests with not very encouraging results .
It seems that the use of a cable extension on USB PC port improves the RF link ; Is it correct to argue that with dongle directly attached to USB port without any extension the chip suffers from some desensitization due to PC noise ?
We don't have clear how to act on RF TX power and RX gain settings on both sides, donge and keyfob. the " TI BLE Vendor Specific HCI Reference Guide" reports a specific subgroup of HCI commands (subgroup 0, LL commands) so it should be clear how to access these settings using a PC program; also BTool has commands for TX power and RX gain.
But Looking at ProcessExtMsg function in hci_ext_app.c of HostTestRelease, it seems that HCI_EXT_LL_SUBGRP is not considered in msg.opCode parsing through C "switch" statement ; is it correct ?
What about acting on TX Power and RX gain in SimpleBLEPeripheral ? One should direct call LL_EXT_SetRxGain and / or LL_EXT_SetTxPower ?
