IEEE (Institute of Electrical and Electronics Engineers)-1394b optical bus protocol converter based on Versa PHY (Physical Layer)

Abstract

The invention discloses an IEEE (Institute of Electrical and Electronics Engineers)-1394b optical bus protocol converter based on a Versa PHY (Physical Layer), which comprises a photoelectric conversion module, an IEEE 1394 protocol module and a central processing module, wherein the photoelectric conversion module is used for converting data received from an IEEE 1394 optical bus into an electrical signal and sending the electrical signal to the IEEE 1394 protocol module and is used for converting data received from the IEEE 1394 protocol module into an optical signal and sending the optical signal onto the IEEE 1394 optical bus; the IEEE 1394 protocol module is used for sending the electrical signal sent by the photoelectric conversion module after conversion by an IEEE 1394 protocol to the central processing module and is used for sending data sent by the central processing module after conversion by the IEEE 1394 protocol to the photoelectric conversion module; and the central processing module is used for sending the data sent by the IEEE 1394 protocol module after conversion by a Versa PHY protocol and is used for sending the received data after conversion by the Versa PHY protocol to the IEEE 1394 protocol module. According to the IEEE-1394b optical bus protocol converter based on the Versa PHY, the system design is simplified, the cost is saved, the power consumption is reduced and the real-time performance of protocol conversion is increased.

Description

technical field [0001] The invention relates to a VersaPHY-based IEEE-1394b optical bus protocol converter, belonging to the technical field of IEEE-1394b protocol conversion. Background technique [0002] The IEEE 1394 bus was developed by Apple in 1986 and became a standard in 1987. The current IEEE 1394b protocol adopts a new arbitration method and encoding method, and supports optical fiber transmission at the same time. The bandwidth supports 3.2Gbps, which greatly improves the transmission performance. Due to its good real-time performance, high transmission rate, flexible topology, easy expansion, and support for hot plugging, the IEEE 1394b bus has become one of the candidate bus technologies for the next generation of aerospace and industrial control fields. [0003] At present, whether it is in the aerospace field, military field, or industrial control field, different bus protocols are usually used according to different data transmission requirements, such as IEE...

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Problems solved by technology

[0008] The present invention proposes a VersaPHY-based IEEE-1394b optical bus protocol converter for solving the problems of complex systems, waste of resources, high power consumption and high cost in existing IEEE-1394b bus and CAN bus protocol converters, include:

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