μC-OS II-based Operating System design for cluster in NoC-based MPSoC

The traditional architecture of Network on Chip (NoC) in which each PE only has one core can´t make the best of router bandwidth and may cause wasting of resources. To avoid these problems, the Cluster has been introduced to the MPSoC NoC-based to improve the performance. In this paper, an Embedded Multi-core Operating System based on μC-OS II has been designed for a cluster which is quad-core SMP. The Embedded Multi-core Operating System adopts a distributed multi-task scheduling strategy based on a global priority to support multi-task scheduling in the cluster. And the master-slave scheme is used in the initialize stage of the system to cut down OS memory footprint. Moreover, to realize the multi-task parallel executing on the multi-core, the paper developed a task communication function for the inner-cluster and inter-cluster based on the MMPI. Finally, we realize the system by using the MicroBlaze IP core on the Xilinx Virtex-6 ML605.