SHARED RESOURCE ACCESSING METHOD IN REAL-TIME PROCESSING SYSTEM, AND REAL-TIME PROCESSING SYSTEM

摘要

Disclosed are a shared resource accessing method in a real-time processing system, and a real-time processing system. The method includes: starting up a thread of a real-time processing system, wherein the real-time processing system includes a plurality of IPUs, each IPU including: a CP thread and an ICO thread, the priority relationship of the threads in the IPU being that the priority of the CP thread is higher than that of the ICO thread; receiving a configuration command inputted by a user and buffering the configuration command into a CDB, wherein the thread priority of the CDB is lower than the priority of the ICO thread; and accessing shared resources according to the priority of each thread within each IPU. The present invention solves the problem that the system is easily suspended due to semaphore locking, enhancing the stability and reliability of the system.