Debugging Bluetooth: bt_hci_core: opcode 0x2039 status 0x0d

[CktDesigner]

I'm using SDK version 2.9.0 with an nRF52840 in a combined peripheral / central application.

The nRF52840 device starts advertising, but then after connecting (as a peripheral) it throws the warning: <wrn> bt_hci_core: opcode: 0x2039 status 0x0d

It appears the opcode is for advertising and the status indicates limited resources.

CONFIG_BT_MAX_CONN is set to 8

Is there a way to determine what "Resources" are being reported as limited?   Or more information on how to clear this warning?

Thanks!

[Simonr]

Hi

I need to know a bit more about your project to help out here I think, as it could be a lot of different reasons that you get this limited resources warning. Do you use pairing/bonding in your application? If so, you will also need to set CONFIG_BT_MAX_PAIRED to the amount of paired devices you would like to have. 

I assume you've also set the device to be able to both be a peripheral and central with CONFIG_BT_PERIPHERAL=y and CONFIG_BT_CENTRAL=y?

What have you set the various buffers to in your config file? Here are some suggested values.

CONFIG_HEAP_MEM_POOL_SIZE=8192

CONFIG_MAIN_STACK_SIZE=2048

CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048

You could also try enabling debugging to see what function exactly it is that returns this limited resources warning. Also, this is just a warning, and not an error, so does the application stop working after connecting to one device or what?

Best regards,

Simon

[CktDesigner]

Thanks...   I found that when I moved from SDK 2.7.0 to SDK 2.9.0 some additional CONFIG_BT settings were needed...