is it possible to switch from coded phy to normal phy advertising before making a connection?

RE: is it possible to switch from coded phy to normal phy advertising before making a connection?

Vidar Berg — Thu, 23 Mar 2023 08:58:11 GMT

Hi Nick,

Thank you for the update. CONFIG_BT_CTLR_ADV_SET (default == 1) configures the number of advertisements sets you can create. The only explanation I can think of is that the previous set failed to be deleted. Maybe the bt_le_ext_adv_delete() returned with an error.

Vidar

RE: is it possible to switch from coded phy to normal phy advertising before making a connection?

creek55 — Wed, 22 Mar 2023 16:31:39 GMT

Here is my prj ( I am using extended adv for Normal phy, while Coded phy requires extended by default, if I remember correctly). Nevertheless, I will try it with your suggestion. Also, I can make a minimal code sample to show the problem if still exists.

CONFIG_BT=y
CONFIG_BT_PERIPHERAL=y
#CONFIG_BT_DEVICE_NAME="****"
CONFIG_BT_CTLR_PHY_CODED=y
CONFIG_BT_CTLR_ADV_EXT=y
CONFIG_BT_USER_PHY_UPDATE=y

CONFIG_BT_DEVICE_APPEARANCE=512
CONFIG_BT_DEVICE_NAME_DYNAMIC=y

CONFIG_BT_EXT_ADV=y
CONFIG_BT_EXT_ADV_MAX_ADV_SET=2

CONFIG_DK_LIBRARY=y

#CONFIG_BT_CTLR_SDC_PERIPHERAL_COUNT=2

Update: as soon as I have added CONFIG_BT_CTLR_ADV_SET=2 , I see no problems Not sure what CONFIG_BT_EXT_ADV_MAX_ADV_SET=2 is for then, but now alternating between Normal and Coded advertising works without a hitch. Thank you Vidar. !

Nick

RE: is it possible to switch from coded phy to normal phy advertising before making a connection?

Vidar Berg — Wed, 22 Mar 2023 12:52:05 GMT

Hello,

Are you able to check if the advertising create function returns with an error code in step 3? Also, please try to build with CONFIG_BT_CTLR_ADV_SET=2 and see if you still get the same error.

Thanks,

Vidar