Errors with extended advertising while trying to configure coded phy on a nrf5340 custom board

[lcj]

I am getting an error trying to get coded phy working with a sysbuild configuration for a nrf5340 custom board:

<wrn> bt_hci_core: opcode 0x203a status 0x01 
<wrn> bt_hci_core: Controller does not support 'LE_READ_MAX_ADV_DATA_LEN'. Assuming maximum length is 31 bytes.
<inf> bt_hci_core: HW Platform: Nordic Semiconductor (0x0002)
<inf> bt_hci_core: HW Variant: nRF53x (0x0003)
<inf> bt_hci_core: Firmware: Standard Bluetooth controller (0x00) Version 252.16862 Build 1121034987
<inf> bt_hci_core: HCI transport: IPC
<inf> bt_hci_core: Identity: CD:BA:8D:27:07:4E (random)
<inf> bt_hci_core: HCI: version 6.1 (0x0f) revision 0x2069, manufacturer 0x0059
<inf> bt_hci_core: LMP: version 6.1 (0x0f) subver 0x2069
<wrn> bt_hci_core: opcode 0x2036 status 0x01 
<err> ble_manager: Advertising failed to start (err -5)

I am trying to follow the Bluetooth: Peripheral Heart Rate Monitor with Coded PHY example for how they enabled it by adding these settings:

CONFIG_BT_CTLR_PHY_CODED=y
CONFIG_BT_CTLR_ADV_EXT=y

CONFIG_BT_EXT_ADV=y
CONFIG_BT_EXT_ADV_CODING_SELECTION=y
CONFIG_BT_USER_PHY_UPDATE=y

When I add extended advertising it seems to fail.

[Vidar Berg]

Hello,

Extended advertising and coded PHY is not enabled by default in the controller. This is why the hr_coded sample provides its own Kconfig configuration for the ipc_radio FW residing on the network core here: https://github.com/nrfconnect/sdk-nrf/blob/main/samples/bluetooth/peripheral_hr_coded/sysbuild/ipc_radio/prj.conf. You can copy the "sysbuild" folder to your project directory and do a pristine build if you want to apply the same configuration in your project.

https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/build/sysbuild/index.html#zephyr_application_configuration_directory 

Best regards,

Vidar

[lcj]

But if I had the settings in my sysbuild/ipc_radio.conf:

CONFIG_SERIAL=y
CONFIG_UART_CONSOLE=y
CONFIG_LOG=y
CONFIG_BT_CTLR_TX_PWR=y
CONFIG_BT_CTLR_TX_PWR_PLUS_3=y


CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y

And these in my prj.conf:

# Bluetooth
CONFIG_BT=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_DEVICE_NAME="EW00000"
CONFIG_BT_RX_STACK_SIZE=4096
CONFIG_BT_L2CAP_TX_BUF_COUNT=10

CONFIG_BT_DEVICE_NAME_DYNAMIC=y
#CONFIG_BT_DEVICE_NAME_MAX=8
CONFIG_BT_LOG_LEVEL_DBG=n

# Coded PHY requirements
CONFIG_BT_CTLR_PHY_CODED=y
CONFIG_BT_CTLR_ADV_EXT=y

CONFIG_BT_EXT_ADV=y
CONFIG_BT_EXT_ADV_CODING_SELECTION=y
CONFIG_BT_USER_PHY_UPDATE=y

Shouldn't at least the extended advertising work?

Also I created peripheral_hr_coded to test if I could get extended advertising working and flashed a nrf5340dk with it. It seems to run based on the log but I cannot see it in the nrfConnect app for iOS.

[Vidar Berg]

lcj said:

Shouldn't at least the extended advertising work?

Yes, without coded PHY. So did you get the "opcode 0x2036 status 0x01" message while CONFIG_BT_EXT_ADV=y
and CONFIG_BT_CTLR_ADV_EXT=y was supposed to be enabled on the controller? If so, it seems like the configurations were not applied to the controller build. You can confirm this by checking the generated config file build/ipc_radio/zephyr/.config

lcj said:

Also I created peripheral_hr_coded to test if I could get extended advertising working and flashed a nrf5340dk with it. It seems to run based on the log but I cannot see it in the nrfConnect app for iOS.

This is expected as iOS does not support Coded PHY