Use External host with NRF5340dk as le audio controller

RE: Use External host with NRF5340dk as le audio controller

Abhinav152 — Fri, 15 Nov 2024 11:59:44 GMT

Hi Kenneth,
Thanks for suggesting the code

#if defined(CONFIG_BT_CTLR_ISO_TX_BUFFERS)
cmds->hci_le_read_buffer_size_v2 = 1;
cmds->hci_le_read_iso_tx_sync = 1;
cmds->hci_le_iso_transmit_test = 1;
#endif

This helps in finding the file name hci_internal.c which has all commands under different flags. So enabling those flags will make nrf5340dk usable to iso commands as well.

file path : nrf/subsys/bluetooth/controller

Abhinav

RE: Use External host with NRF5340dk as le audio controller

Kenneth — Wed, 13 Nov 2024 09:00:24 GMT

Searching a bit in the source code I could at least find this define that seems relevant here:

#if defined(CONFIG_BT_CTLR_ISO_TX_BUFFERS)
cmds->hci_le_read_buffer_size_v2 = 1;
cmds->hci_le_read_iso_tx_sync = 1;
cmds->hci_le_iso_transmit_test = 1;
#endif

Kenneth

RE: Use External host with NRF5340dk as le audio controller

Abhinav152 — Wed, 13 Nov 2024 03:55:01 GMT

Thanks for the quick response. I am finding out which kconfig options are needed to set for the controller in that build.

I am trying to send hci_le_read_buffer_size[v2] command to nrf5340dk

RE: Use External host with NRF5340dk as le audio controller

Kenneth — Tue, 12 Nov 2024 11:55:33 GMT

Hello,

Not tested this in any way, but if I were to try this, I would have tried:

First build the audio application, and then find which kconfig options are set for the controller in that build.

Then you also apply those configurations when you build the hci_uart (I suspect you need more than just CONFIG_BT_LL_ACS_NRF53=y).

If you still have problems, then I suggest you try to find exactly which hci command that is unknown.

Kenneth