Parallel communication method based on microcontroller and FPGA

Abstract

The invention relates to a parallel communication method based on a microcontroller and an FPGA. The microcontroller and an FPGA chip adopt a simple and effective parallel connection mode; the FPGA is used as an external SRAM device; a built-in FSMC (Flexible Static Memory Controller) of the microcontroller is used; and by an expanded data bus, address bus and control line, a reading operation and a writing operation are carried out on an SRAM space inside the FPGA so as to complete two-way parallel communication of the microcontroller and the FPGA. The parallel communication method disclosed by the invention implements high-speed parallel bus communication between the microcontroller with the built-in FSMC and the FPGA, and with respect to the defects of low speed, complex parallel communication structure, multiple source codes and the like of a conventional microcontroller and FPGA serial communication mode, uses the FSMC controller easy to configure and has the advantages of simple parallel connection structure, high communication speed, high communication reliability, few source codes and the like.

Description

technical field [0001] The invention belongs to the field of microelectronics, in particular to a parallel communication method based on a microcontroller and an FPGA. Background technique [0002] In recent years, FPGA applications have rapidly expanded from the very narrow field of communication infrastructure equipment in the past to today's very wide application fields. In many emerging and fast-growing markets, FPGAs are widely adopted as core devices. Wireless communications, industry, science and measurement, medical equipment, audio and video broadcasting, automotive, computing, storage applications and the fast-growing consumer market have all become key areas of FPGA business development. Single-chip microcomputer has unique advantages in small size, complete functions, low price, high reliability, etc., and has been widely used in various fields for a long time. In terms of function, microcontrollers and FPGA devices have strong complementarities. Microcontrolle...

AI Technical Summary

Problems solved by technology

The disadvantage of serial communication is low speed, the advantage is that the interface is simple and the complexity of software implementation is low

The advantage of high-speed parallel communication is high speed, but the interface is complex and the software implementation complexity is high

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