Design and Application of Multi-MCU Fault-tolerance Based on µC/OS-II
Qiang Xu, Kai Jun Xu · Jisuanji gongcheng · 2008
【Abstract】The paper analyzes µC/OS-II system, and adds some fault-tolerant operating modules based on multi-MCU modules. The modules achieve the coherent real-time operation for the current state of the running tasks. If one of the multi-MCU modules breakdowns, other MCU modules can judge the fault and resume bad system state to run on decision-making. The fault-tolerant real-time operating system, which shows a stable dependable fault-tolerant ability, has been tested on three MCUs. 【Key words】fault-tolerance; µC/OS-II system; mutil-MCU system; communication protocol