dm365 data transmission interface circuit based on fpga

Abstract

The invention provides an FPGA-based DM365 data transmission interface circuit and belongs to the field of circuit design. The FPGA-based DM365 data transmission interface circuit comprises a DM365 chip and a peripheral circuit, wherein an FPGA-based interface adaptation circuit is connected between an EMIF transmission interface and an SPI transmission interface of the DM365 chip and the peripheral circuit and is used for converting an EMIF protocol transmitted by the EMIF transmission interface and an SPI protocol transmitted by the SPI transmission interface into protocols performing communication with an RAM memory circuit or an FIFO memory circuit; and the EMIF interface and the SPI interface of the DM365 chip can be connected with an RAM memory and an FIFO memory through the FPGA-based DM365 data transmission interface circuit, and therefore the DM365 chip can perform communication with more peripheral circuits. Through the FPGA-based DM365 data transmission interface circuit, the technical problem that a single DM365 chip transmission interface and a single communicable peripheral circuit are available in the prior art is solved, and function extensibility is more flexible.

Description

technical field [0001] The invention belongs to the technical field of circuit design and relates to an FPGA-based DM365 data transmission interface adaptation circuit. It can be used to adapt the EMIF and SPI interface of the DM365 chip, and convert the interface into a specified transmission interface for other devices to exchange data with the DM365. [0002] technical background [0003] In today's society, data transmission applications are becoming more and more important, such as video conferencing, distance education, real-time video monitoring, video calls, etc., all of which require transmission interface circuits to transmit the collected data. In addition to the application of data transmission interface circuit technology in the Internet, it is also widely used in embedded applications. We obtain a large amount of data information every day. In addition to the higher and higher requirements for the quality of the obtained data, people also have higher and higher...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defective that above-mentioned prior art exists, propose a kind of DM365 data transmission interface circuit, be used to solve the EMIF interface and SPI interface of DM365 chip existing in the prior art when carrying out data transmission, and peripheral chip The connection and communication methods are relatively simple, and the flexibility of function expansion is not high.

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