How to config nrf5340 tx power?

RE: How to config nrf5340 tx power?

JONATHAN LL — Wed, 07 Apr 2021 12:46:19 GMT

Did you get it to work when you added to the network-config ?
Regards,
Jonathan

RE: How to config nrf5340 tx power?

Август — Fri, 02 Apr 2021 01:02:41 GMT

Hello,

Not only application project but also net project neet config.

RE: How to config nrf5340 tx power?

variant — Thu, 01 Apr 2021 17:12:26 GMT

With NCS v1.5.0, the Read Tx Power is failing (as well as the Write Tx Power) when using the nRF5340.

Here's the error message that I get for the read case (which the comment above says is supported):

Read tx power failed (err -5, reason 0x00).
[02:30:52.295,684] <wrn> bt_hci_core: opcode 0xfc0f pool id 8 pool 0x20000d70 != &hci_cmd_pool 0x20000d44
[02:30:52.295,715] <wrn> bt_hci_core: opcode 0xfc0f status 0x01

Update: My bad. The Read Tx Power does indeed work when using the SoftDevice. My mistake above was that I needed to add

CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y

to the hci_rpmsg.conf file for the network core.

The Set Tx Power works only for 0 dBm.

RE: How to config nrf5340 tx power?

JONATHAN LL — Fri, 12 Mar 2021 12:16:35 GMT

The SoftDevice does not have full support for set_tx, but read_tx is supported. So then LL_SPLIT is then needed to get the desired operation.
You can check out more of the documentation on the different configs here: BT_CTLR_CONN_RSSI — Kconfig reference (nordicsemi.com)
Regards,
Jonathan

RE: How to config nrf5340 tx power?

Август — Fri, 12 Mar 2021 01:43:22 GMT

Hi Joanthan,

Thank you for your reply.

Yes I did, but unfortunately it doesn't work.

Now I have solved this problem by set the prj.conf files.

CONFIG_BT_LL_SOFTDEVICE=n

CONFIG_BT_LL_SW_SPLIT=y

CONFIG_BT_CTLR_ADVANCED_FEATURES=y

CONFIG_BT_CTLR_CONN_RSSI=y

CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y

But I don’t know why this is done, is there some documentations can help me?

Thank you.

RE: How to config nrf5340 tx power?

JONATHAN LL — Thu, 11 Mar 2021 13:06:05 GMT

Did you sett the prj.conf files also
CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y

Regard,
Joanthan