User Manual

Bluegiga Proprietary Version 1.0

8 BLUETOOTH SOFTWARE STACKS

WRAP THOR 2022-1 is supplied with Bluetooth stack firmware which runs on the internal RISC

microcontroller. This is compliant with the Bluetooth specification v1.1.

The WRAP THOR 2022-1 software architecture allows Bluetooth processing overheads to be

shared in different ways between the internal RISC microcontroller and the host processor. The

upper layers of the Bluetooth stack (above HCI) can be run either on-chip or on the host processor.

Running the upper stack on WRAP THOR 2022-1 reduces (or eliminates, in the case of a virtual

machine (VM) application) the need for host-side software and processing time. Running the upper

layers on the host processor allows greater flexibility.

8.1 RFCOMM STACK

Figure 4: RFCOMM stack