ELECTRONIC SYSTEM AND METHOD OF OPERATING AN ELECTRONIC SYSTEM

摘要

In a method of operating an electronic system (1) a first device (3) of the electronic system (1) sends a message to a second device (6) of the electronic system (1). The second device (6) receives the message, generates a first value utilizing a first function based on at least parts of the history of atleast parts of messages previously received at the second device (6), and stores the first value in a memory (8) of the second device (6). The first value is compared 5 witha second value generated at the first device (3), whereinthe second value utilizes a second function based on at least parts of the history of atleast parts of messages previously sent from the first device (3) to the second device (6). The first and second values are evaluated, and a signal is generated if the evaluating of the first and second values indicates that the historyofthe messages previously received at the second device (6) differs from the 10 historyofmessages previously sent from the first device (3).