Dual-processor communication method and communication device thereof

Abstract

The invention discloses a dual-processor communication method and a communication device thereof. The dual processors are respectively a first processor and a second processor. A custom target data structure is used, and target data is stored in a memory space dynamically allocated by a dual-port random access memory (DPRAM). The first processor writes the custom target data structure into a Mailbox, and the first processor and the second processor communicate with each other through the Mailbox, so that the second processor reads the target data from the memory space of the corresponding dual-port random access memory DPRAM. Existing free memory space in the dual-processor communication device is used and can be dynamically released after being used, no extra memory space is occupied, a memory space does not need to be developed independently, and therefore the memory space is saved. A Mailbox communication mechanism which is simple and rapid in design is used, rapid communication ofa large amount of data can be achieved between dual processors, and the problems that an existing multiprocessor communication system is low in memory utilization rate, low in data transmission speedand the like are solved.

Description

technical field [0001] The invention relates to the field of semiconductor communication, in particular to a dual-processor communication method and a communication device thereof. Background technique [0002] With the continuous improvement of semiconductor manufacturing technology, in order to meet high-end applications such as communication, multimedia and digital processing, the system on chip has not only integrated one processor, but integrated multiple processors into one system, and even needs to combine off-chip processors work together. In dual-processor communication, a typical application is to integrate CPU and DSP (DigitalSingnal Processor) into a system, in which the CPU is responsible for the complex control of the system, and the DSP is responsible for the complex calculation of the system. Through the system on chip, the two types of processors are organically The combination of each system can give full play to their respective advantages and complete th...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a dual-processor communication method using dynamic memory space and its communication device, so as to solve the problems of low memory utilization rate and slow data transmission speed in the existing multi-processor communication system

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