TASK CONTROL SYSTEM OF MULTIPROCESSOR SYSTEM

摘要

PURPOSE:To allow synchronism collation even when two microprocessors differ in processing time greatly to cause deviation in timing, by synchronizing both microprocessors with each other on the basis of the judgement of a main system once data from an external device is concatenated to a task. CONSTITUTION:A main microprocessor 11 and a conventional microprocessor 12 are connected to the external device 8, and synchronous data transmitter and receivers 13 and 14 are coupled with those microprocessors 11 and 12 and coupled mutually through a synchronism data transfer line 15 to constitute a synchronous port. Input data from the external device 8 is fetched in the microprocessors 11 and 12 at the same time and stored in input buffers. Once the task requests the input data, synchronism data is generated and the received data of both systems are collated with each other and then used for the task.