Device and method for implementing communication between processes

Abstract

A method for carrying out communication between processors includes setting multiprocessor communication unit in multiprocessor system, calling said multiprocessor communication unit by each processor through control bus in order to carry out communication between processors through said multiprocessor communication unit. The device used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to the communication field, in particular to a device and method for realizing communication between processors. Background technique [0002] ARM (a reduced instruction set computer processor) is a mainstream RISC (reduced instruction set computer) processor widely used in embedded systems. Almost all semiconductor manufacturers in the world produce general-purpose processors based on the ARM architecture. chip. ARM has a huge market in the fields of wireless equipment, network products, consumer electronics, automotive electronics, mass storage devices, imaging systems and security products. [0003] ARM has a great advantage in the operating system, and DSP (Digital Signal Processor) has a great advantage in calculating various mathematical algorithms. Therefore, many embedded systems currently use the ARM+DSP architecture. Through the ARM +DSP architecture enables communication, media and other applications. [0004] A comm...

AI Technical Summary

Problems solved by technology

[0006] The shortcoming of the communication method between ARM and DSP in the above-mentioned prior art is: in the dual-core structure audio processor of ARM+DSP in this scheme, the communication mechanism between ARM and DSP both is relatively simple, can only be based on waiting Simple communication such as query and synchronization in interactive mode is not conducive to the system to perform faster calculations and complete more complex functions

[0007] If you want to improve the functional level of the entire system, you must run the operating system on the ARM and run various audio algorithms on the DSP, then the ARM and the DSP must run in coordination, relying solely on the simple query and synchronization based on the above-mentioned waiting interaction method Communication mechanism, ARM and DSP will spend considerable resources to monitor or wait for each other's behavior and status, and the operating speed of the entire system cannot be brought into full play

At the same time, systems without a good communication mechanism between ARM and DSP are generally difficult to support functions or services such as real-time operating systems, file systems, and large data volume operations, which can easily cause single-function or even unstable systems.

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