Abstract:As application scenarios become more and more complex, heterogeneous multi-core architecture becomes the mainstream architecture of embedded processors. At present, there are many limitations in the application of the single operating system model mainly used in multi-core processors. In order to give full play to the heterogeneity of multi-core processor features, it is essential to deploy the corresponding operating system for different cores of heterogeneous processors and realize the collaborative processing technology of multiple operating systems. In this study, the operating system of heterogeneous multi-core processor (ARM+DSP) is investigated, and embedded Linux and ReWorks of domestic DSP real-time operating system are successfully transplanted on heterogeneous multi-core platform. In order to realize the collaborative processing between ReWorks and Linux operating system, this study analyzes the key technologies of inter-core communication, and takes AM5718 of TI as an example, designs a series of multi-core heterogeneous communication components. It has been tested that the heterogeneous communication components can dynamically load the DSP kernel with the ReWorks operating system and applications, send and receive messages between Linux and ReWorks cores, and perform collaborative computing between Linux and ReWorks.