Information display device based on dual processor cooperation

Abstract

The invention discloses an information display device based on dual processor cooperation, which comprises two display subsystems, a cooperation unit and a sharing storage unit, wherein the two display subsystems are respectively connected to the cooperation unit through the respective communication buses of the two display subsystems and are connected to the sharing storage unit through the respective address / data buses of the two display subsystems; the cooperation unit is connected to the sharing storage unit by a control bus; the cooperation unit is used for performing the cooperative work, data exchange and data sharing of the two display subsystems; the cooperation unit is communicated with processors of the two display subsystems through a protocol; information type and data format transferred between the cooperation unit and the processors are defined in the communication protocol; the cooperation unit is used for specifically managing a distributed processing task in the whole system, including the activation, scheduling and tracking of each process and the communication and synchronization among processes related to the distributed processing task. The sharing storage unit is used for storing various information and data which are used by the two display subsystems; and under the control of the cooperation unit, the subsystems access the RAM (random-access memory)in the sharing storage unit in sequence through the respective address / data buses of the subsystems. By using the device provided by the invention, the running property of dual processor system can be efficiently promoted, the executing efficiency of concurrent process in the system can be improved, the access conflict of sharing resource is avoided, and the processing speed of complex task is increased.

Description

technical field [0001] The invention belongs to the technical field of embedded computers, and in particular relates to the design of a computer system using dual processors for graphic information display. Background technique [0002] In many graphic information display devices (especially large-scale high-speed graphic display systems), due to the processing and transmission of a large amount of data, the system based on a single processor encounters great difficulties in hardware and software design, and the dual processor Architecture becomes the first choice. In a dual-processor-based display system, since complex display tasks are often completed by two processors (for example, one processor is responsible for graphics transformation, and the other is responsible for display scanning), how do processors work together? It becomes the difficulty of system design. Collaborative work involves task decomposition, process communication and synchronization, resource sharin...

AI Technical Summary

Problems solved by technology

Collaborative work involves task decomposition, process communication and synchronization, resource sharing and access, etc. If these problems are not solved properly, it will constitute a bottleneck of system performance, and it is difficult for the system to achieve ideal speed when processing complex tasks. and effects

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