CC2640R2L: How to configure BLE TX Power and RX Sensitivity settings

Advait L

Part Number: CC2640R2L

Hello!

We are using simple_peripheral project as starting point to build our application.
BLE5 stack
SDK - 5.10.00.02
CCS IDE
Not using launchpad but custom hardware based on CC2640R2LRHB VQFN32

I wanted to know if we can configure the TX Power and RX Sensitivity settings from the firmware and how?

I tried calling these functions from the init function
HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_5_DBM);
HCI_EXT_SetRxGainCmd(HCI_EXT_RX_GAIN_HIGH);

But could not observe any significant difference.

over 3 years ago

0 Nathan Block over 3 years ago

TI__Mastermind 37805 points

Hi Advait,

For setting the TXPower, see this thread I handled a few months ago.

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/1045751/launchxl-cc2640r2-txpower-not-changing-when-hci_ext_settxpowercmd-is-called

I'm not sure if changing the CC26XX RX gain is possible. In this thread Fredrik makes it clear that the command you're using is not supported by CC26XX devices, but I will pass this to the hardware team to discuss the viability of changing the RX Gain in general.

Best,

Nate

0 desouza over 3 years ago in reply to Nathan Block

TI__Guru**** 171094 points

Hi,

Nathan Block said:
I'm not sure if changing the CC26XX RX gain is possible.

Indeed adjusting the Rx gain is not possible on CC26xx devices. You should refer to the Rx sensitivity shown in the datasheet for the details.

Best regards,

Rafael

0 fredrikgk over 3 years ago in reply to Nathan Block

Expert 2160 points

Are you questioning my knowledge?

Bluetooth®︎

Bluetooth forum

CC2640R2L: How to configure BLE TX Power and RX Sensitivity settings