***************** XCP - Calibration and Measurement Protocol ******************

XCP is a Calibration and Measurement protocol for use in embedded systems. 
It's a generalization of the previously existing CCP (CAN Calibration Protocol)
This implementation is designed for integration in an AUTOSAR project. It
follows AUTOSAR 4.0 Xcp specification but support integration into an
AUTOSAR 3.0 system.

The requirements on the AUTOSAR infrastructure is limited, thus creating
"emulation" functions to use the XCP module standalone is not a major 
hurdle for integration.

Module support both static an dynamically configured DAQ lists, with
dynamic DAQ lists the easier of the two to configure. It also support
predefined DAQ lists when in dynamic mode in preperation for RESUME
more support.

There is support for reading and writing directly in memory on the device
aswell as a abstraction layer for memory to allow reading/writing
directly to ports or user defined data.

Module support multi threaded execution of data receive callbacks
and main functions as long as a global mutex or interrupt disabling
rutine exists. It's only locked for very short periods of time
during addition or removal of packets from queues. (the code should
suite itself well for being replaced with a lockless alternative
with atomic operations instead).

Support Seed and Key protection for the different features of
Xcp.