Max advertising data length in extended mode

[j_delsol_catie]

Hello,

I would need to send BLE multiple packets (~1400 Bytes with adv data chain).
The size of one packet is  ~237 Bytes.

It works with 3 packets only but when I add other packets, I have an error when I start the advertising:

Failed to set advertising data (err -5)
Advertising failed to create (err -5)

Here, my project config:

CONFIG_BT=y
CONFIG_BT_HCI_RAW=y
CONFIG_BT_MAX_CONN=16

CONFIG_BT_BROADCASTER=y
CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y
CONFIG_BT_CTLR_PHY_CODED=y
CONFIG_BT_CTLR_ASSERT_HANDLER=y
CONFIG_BT_CTLR_ADVANCED_FEATURES=y
CONFIG_BT_CTLR_ADV_DATA_CHAIN=y
CONFIG_BT_CTLR_ADV_DATA_LEN_MAX=1650
CONFIG_BT_CTLR_SCAN_DATA_LEN_MAX=1650

CONFIG_IPC_RADIO_BT=y
CONFIG_IPC_RADIO_BT_HCI_IPC=y

Do you have any idea what the problem is?

Environment:

 - nRF Connect SDK v2.8.0-preview1-11645184a54d

 - Zephyr OS v3.7.99-adcffa835a8e

Thanks in advance.

Best regards,

Julien

[tesc]

Hi,

Which SDK sample (if any) are you basing your project off of? The only occurrence of the "Advertising failed to create" error message is in the sample Bluetooth: Peripheral Heart Rate Monitor with Coded PHY. Are you combining extended advertising with coded phy?

Also, can you share more of the log, preferably the full log, leading up to and including the two error messages that you have already shared?

Regards,
Terje

[j_delsol_catie]

Hello,

I have customized the Peripheral Heart Rate Monitor with Coded PHY and I have extended advertising with coded phy.

It works, I have found my problem. It was the advertising time, that was too fast for the volume of data.

Thanks for your time and support.

Best regards,

Julien

[tesc]

Hi,

Thanks for the update, and for sharing the solution to the issue. I will mark your explanation as the answer, and close the case.

Regards,
Terje