METHOD AND DEVICE FOR EXECUTING BY A SINGLE PROCESSOR SEVERAL FUNCTIONS OF DIFFERENT CRITICALITY LEVELS, OPERATING WITH HIGH SECURITY

摘要

for execution by a processor (70) for a number of functions, the processorhaving access to a memory addressable space of program(81) and (82), and a data register (77) entry / exit processaccording tothe invention includes granting access to each function.division of space law related each addressable partitionsaccessthe function division of time of utilization of the processor unitsofcyclic time associated with the right of access to a service at the beginning of eachfurther, the processor has completed the verificationthe performance of the previous position, and the activation of the tasks of thefunctionaccordingly, and in each access by a processor (70) to a zonethe addressable, comparison (113) of the right of access to the portion of time(111) with associated to the area access, and transmission of a signalan error in the case of inconsistency.