Coded PHY Advertising on nRF Connect SDK

[Jared]

Hey All,

I ran into an issue on the nRF Connect SDK trying to get a nRF52840 advertising using CODED PHY. I figure it's not fully implemented yet are there any updates on timeline for that? I also posted a bug in the Zephyr repo.

Describe the bug
BLE advertising failed to start on a nRF52840 when enabling BT_LE_ADV_OPT_EXT_ADV.

[00:00:00.002,960] <inf> ble_m: BLE Stack Ready!
[00:00:00.002,960] <inf> ble_peripheral: Bluetooth initialized
[00:00:00.002,960] <err> ble_peripheral: Advertising failed to start (err -22)

To Reproduce

1. Choose any BLE example
2. Use a compatible board like nrf52840dk_nrf52840
3. Add CONFIG_BT_EXT_ADV=y to your prj.conf
4. When initializing struct bt_le_adv_param *adv_param = add these two flags BT_LE_ADV_OPT_CODED | BT_LE_ADV_OPT_EXT_ADV

Looks like this:

	struct bt_le_adv_param *adv_param =
		BT_LE_ADV_PARAM(BT_LE_ADV_OPT_CONNECTABLE |
				BT_LE_ADV_OPT_ONE_TIME | BT_LE_ADV_OPT_CODED |
				BT_LE_ADV_OPT_EXT_ADV,
				BT_GAP_ADV_FAST_INT_MIN_2,
				BT_GAP_ADV_FAST_INT_MAX_2,
				NULL);

For instance, if I used the throughput example in the SDK and try to set BT_LE_ADV_OPT_CODED | BT_LE_ADV_OPT_EXT_ADV as some of the parameters it always return -22. Looking further into it, it appears that CODED PHY advertising is (purposefully?) disabled in valid_adv_param.

Any insight is appreciated!


[Blue King]

the problem is, Zehpyr can't see the NRFxlib

I followed this tutorial to install NRFx with zephyr with no luck

https://jimmywongiot.com/2019/12/18/step-by-step-on-nordic-connect-sdk-for-development/

tried also to copy the nrfxlib and import the kconfig file into my zephyr enviroment.

https://github.com/nrfconnect/sdk-nrfxlib

actually, I find nowhere in any file on nrfx library this text "LL_NRFXLIB"

tried also to include CONFIG_SOFTDEVICE_CONTROLLER_S140 with no luck.

so, What do i miss?

I always get

prj.conf:9: warning: attempt to assign the value 'y' to the undefined symbol BT_LL_NRFXLIB_DEFAULT

same for CONFIG_BT_LL_NRFXLIB_VS_INCLUDE

this is my prj.conf

CONFIG_BT=y
CONFIG_BT_BROADCASTER=y
CONFIG_BT_OBSERVER=y
CONFIG_BOARD_NRF52840DONGLE_NRF52840=y

# Link Layer
#NRF
#CONFIG_SOFTDEVICE_CONTROLLER_S140=y
CONFIG_BT_LL_NRFXLIB_DEFAULT=y
#NRF
CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_PHY_CODED=y
CONFIG_GPIO=y

CONFIG_USB=y
CONFIG_USB_DEVICE_STACK=y
CONFIG_USB_DEVICE_PRODUCT="Qoudra BLE"
CONFIG_USB_UART_CONSOLE=y

CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_UART_LINE_CTRL=y
CONFIG_UART_CONSOLE_ON_DEV_NAME="CDC_ACM_0"