Method for performing high-speed communication by accessing SDRAM (synchronous dynamic random access memory) at different time intervals on basis of FPGA (field programmable gate array) and DSP (digital signal processor)

Abstract

The invention relates to a method for performing high-speed communication by accessing an SDRAM (synchronous dynamic random access memory) at different time intervals on the basis of an FPGA (field programmable gate array) and a DSP (digital signal processor). A system for performing high-speed communication by accessing the SDRAM at different time intervals on the basis of the FPGA and the DSP comprises the FPGA, the DSP and a communication intermediary memory SDRAM. The method for performing high-speed communication by accessing the SDRAM at different time intervals on the basis of the FPGA and the DSP is as follows: a status switching switch in the FPGA is used for realizing two states for accessing the SDRAM by the FPGA and the DSP and directly reads data from the communication intermediary memory SDRAM through a communication interface module for processing. If SDRAM data are required to be read for processing, both the FPGA and the DSP can directly read the data from the communication intermediary memory SDRAM, so that additional memory time and resources are greatly saved, high-speed communication of the data is realized, and the cost of storage resources is greatly reduced simultaneously.

Description

technical field [0001] The invention relates to the field of high-speed transmission and communication of a large amount of data, in particular to a method for high-speed communication based on FPGA and DSP accessing SDRAM by time intervals, and is especially suitable for the field of high-speed transmission and communication of image data between DSP and PFGA. Background technique [0002] With the mature development of data signals and the increase of demand for image processing, the dependence on DSP technology is getting higher and higher. However, a single chip for high-speed image acquisition and high-speed image processing cannot meet the high-speed requirements. Therefore, in recent years, in terms of high-speed image acquisition and high-speed digital signal processing, more and more people have adopted the way of FPGA and DSP to work together. [0003] The Chinese invention patent with application number 201010590964.8 discloses a method and device for FPGA to com...

AI Technical Summary

Problems solved by technology

The invention solves the storage problem of stable and high-speed transmission of large-capacity data and DSP data between FPGA and DSP, and at the same time greatly reduces the cost of storage resources

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