BLE disconnection - NRF_ERROR_RESOURCES

[Roei]

Hi,

I'm using nrf52840 to connect a mobile device via BLE.

I've noticed that when a lot of messages are sent, a disconnection occurs with reason code of NRF_ERROR_RESOURCES.

Can you please help me?

Thanks!

[Kenneth]

Hi,

NRF_ERROR_RESOURCES simply means that the softdevice have already buffered all notification in can hold, so you need to wait until BLE_GATTS_EVT_HVN_TX_COMPLETE event and retry.

Best regards,
Kenneth

[Roei]

Hi,

Just to clarify - NRF_ERROR_RESOURCES is received as an error code for disconnections. Do you think I need to try waiting for BLE_GATTS_EVT_HVN_TX_COMPLETE?

Thanks!

[Kenneth]

I do not see any reason why that should trigger disconnect, but does the issue go away if you disable LESC support during bonding?

Kenneth

[Roei]

I don't think it's the trigger as well.

However - I've noticed something else - each time disconnection with value 19 occurs - my BLE mobile application disappears, maybe crushed. I think it may be related to overload of messages on the mobile. Does it make sense?

[Kenneth]

Yes, that may explain things yes.

Kenneth

[Roei]

Ok, any ideas what is the reason for application failure when a lot of messages are sent?

[Kenneth]

Sorry no, don't have any experience with app development.

Kenneth