OS-Level IPC Implementation in Complementary Multi-processor Systems

Abstract

Most of embedded multiprocessor platforms are ideal for running diverse operating systems and implementing different applications. Inter-processor communication interface makes it possible for an embedded multi-processor system to easily support multiple subsystems parallel processing. This paper propose a kind of OS-level communication interface implementing method based-on HPI in the Complementary Multi-processor System and present the primary principles and corresponding DSP side code structure for HPI. Take a single-board embedded multimedia system which was integrated three embedded microprocessors (PXA255, TMS320DM642 and SM501) as hardware platform, detailed description of how implement tasks communication and data transform by HPI between different embedded OS(ARM-Linux and µC/OS-II) running on ARM and DSP separately.