High-speed SpaceWire optical fiber link test card capable of working offline

Abstract

The invention discloses a high-speed SpaceWire optical fiber link test card capable of working offline. The optical fiber link test card comprises a main control FPGA, and an SPW interface, a storagechip and a USB interface which are respectively connected with the main control FPGA, wherein the USB interface is connected with an upper computer, the SPW interface comprises an SPW optical fiber interface and an SPW cable interface, and the main control FPGA comprises an SPW interface control module, an instruction analysis and response module, a control register module, a USB interface controlmodule, a data flow control module and a data caching module. The test card can be controlled and configured through an upper computer; the device can work in an on-line or off-line manner; accordingto the SPW optical fiber network equipment, the data receiving and transmitting function of the SPW optical fiber network equipment can be simulated, an SPW optical fiber link can be monitored and recorded, a result is uploaded to an upper computer to be displayed, and therefore an SPW optical fiber network system can be conveniently and rapidly tested and verified.

Description

technical field [0001] The invention belongs to the technical field of high-speed data transmission of spacecraft, and in particular relates to a high-speed SpaceWire (SPW) optical fiber link test card that can work offline. Fiber optic links are tested. Background technique [0002] With the development of aerospace technology and the gradual increase in the demand for space technology in the fields of communication, earth observation, and scientific research, the tasks borne by spacecraft are becoming increasingly heavy, the functions of spacecraft tend to be more complex, and the types of equipment carried are also becoming more complex. Gradually enriched, the amount of data that needs to be exchanged by each unit in the aerospace electronic system is getting larger and larger. The traditional data transmission bus has gradually exposed great limitations in the face of complex structure networking and massive data transmission requirements of spacecraft electronic syste...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a high-speed SPW optical fiber link test card that can work offline, aiming at the problems of difficulty in developing and testing SPW optical fiber networks and high cost caused by the lack of mature equipment equipped with SPW interfaces.

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