The research of shared memory communication technology based on avalon bus

This paper researches the system of shared memory technology based on Avalon bus. According to the Avalon bus feature, combination of mailbox components and shared memory is adopted to build a hardware system for multi-processor communication. Then ucos-ii is transplanted to build a software environment of inter-process communication. Furthermore, in the level of process communication, system is to exchange data through operation system or mailbox core by checking processes' physical location. The features of software communication convenience and hardware communication efficiency in the whole system are combined to realize the communication between two processors by shared memory.