Method for monitoring the coordinated execution of tasks sequenced by an electronic card having at least two processors working with different clocks

摘要

The method involves executing tasks by a main processor (PP1,PP2) and an auxiliary processor (PA1,PA2) over main time period and auxiliary time period. A coordination marker is emitted by main processor to auxiliary processor at the start of main time period. A response word is emitted by auxiliary processor based on coordination marker received. The response word is validated by main processor during start of consecutive time period. A defect of coordination of the auxiliary processor is signaled by the main processor, when response word is not valid.