Do BLE HCI_EVT occupy a packet slot on the connection interval?

[AmiguelS]

I have been analyzing the Bluetooth snoop file on several Android devices, where the Android device is the Central (Client) and the peer device (nRF51822 with S130) is the Peripheral (Server).

When performing a Write Command (WC) (sending data from Android to Peripheral), besides the WC sent packet, wireshark identifies an HCI event labeled as Number of Completed Packets.

As HCI messages are exchanged between Host and Controller of the same device, do these events take up a packet slot on the Connection Interval(CI) ? Because while I'm able to send 3 packets/CI using Notifications, only 1 packets/CI is being sent when using Write Command.

Snoop file available here.

[AmiguelS]

I'm using S130 v2, SDK 11 and custom firmware. I took the BLE Notifications example and added a couple of characteristics.

[Petter Myhre]

Notification example?

[AmiguelS]

This one. I made the proper changes for it to use write no response, and confirmed it was properly configured using nRf Master Control Panel.

[Petter Myhre]

I see. That example is configured in a way so that it can receive several write commands in a connection interval. I suspect that the Android device limits it to 1. What model are you using?

[AmiguelS]

Its a Motorola Moto G version 2 with Android 5.0.2