pawr_sync_conn doesn't work for nrf5340 audio dk

RE: pawr_sync_conn doesn't work for nrf5340 audio dk

carefree — Thu, 24 Oct 2024 06:35:26 GMT

I use the main thread program in github - github.com/.../main.c
We also change.response_slot_delay to 0x08, which works great.

RE: pawr_sync_conn doesn't work for nrf5340 audio dk

carefree — Wed, 23 Oct 2024 12:17:26 GMT

I also encountered error 0x2083 0x46 with the following details:
W: opcode 0x2083 status 0x46
E: Failed to send response (err -5)
I: Indication: subevent 0, responding in slot 0
0xFF: 5900BE
But when I reset it a few times, it seems to work with some probability, at which point the details are as follows:
I: Indication: subevent 0, responding in slot 1
0xFF: 590033
It didn't have any errors, and coincidentally, once it worked, I reset it several times without getting the error again, until I reset central and the problem reappeared.
Do you have the same problem as me?
How can I fix this?

RE: pawr_sync_conn doesn't work for nrf5340 audio dk

CHEN YANG — Tue, 22 Oct 2024 14:02:15 GMT

It works. Thanks a lot.

Chen Yang

RE: pawr_sync_conn doesn't work for nrf5340 audio dk

Hung Bui — Tue, 22 Oct 2024 13:58:34 GMT

Hi Chen,
Please try adding this:

CONFIG_BT_PER_ADV_SYNC_BUF_SIZE=247
CONFIG_BT_PER_ADV_SYNC_TRANSFER_SENDER=y
CONFIG_BT_PER_ADV_SYNC_TRANSFER_RECEIVER=y

I did a test here and it seems it solved the issue with opcode 0x2084 status 0x01. But it then run into issue with
opcode 0x2083 status 0x46

0x2083 = BT_HCI_OP_LE_SET_PER_ADV_RESPONSE_DATA

0x46 means BT_HCI_ERR_TOO_LATE

But it could be something to do with the PAWR configuration. I need to investigate this a bit more but you can try increasing the response delay. It simply means that by the time the controller received the response data from the host, it was too late to be able to send it.

RE: pawr_sync_conn doesn't work for nrf5340 audio dk

CHEN YANG — Tue, 22 Oct 2024 12:45:30 GMT

Tried your solution, still same error. And I think CONFIG_BT_CTLR_ADV_EXT is an option for opensource LL. Default, the sample should use SoftDevice.

Here is my ipc_radio.conf

yangchen@yangchen-Standard-PC-Q35-ICH9-2009:~/nrfsdk/zephyr/samples/bluetooth/periodic_sync_conn$cat sysbuild/ipc_radio.conf
CONFIG_BT_EXT_ADV=y
CONFIG_BT_PER_ADV=y
CONFIG_BT_PER_ADV_SYNC=y
CONFIG_BT_PER_ADV_SYNC_RSP=y
CONFIG_BT_CTLR_ADV_EXT=y

RE: pawr_sync_conn doesn't work for nrf5340 audio dk

Hung Bui — Tue, 22 Oct 2024 11:24:02 GMT

Hi Chen,
What you are seeing is that the opcode BT_HCI_OP_LE_SET_PER_ADV_SYNC_SUBEVENT (0x2084 ) is not supported (status 0x01)
Most likely it's the stack on the netcore has not been configured to support PAWR. Please check your configuration for the netcore.
If you use sysbuild it should be added to ipc_radio.conf:

CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y