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SpaceWire router cascade structure capable of expanding SpaceWire port

A cascading structure and router technology, applied in digital transmission systems, electrical components, transmission systems, etc., to reduce complexity and facilitate use

Active Publication Date: 2020-04-10
BEIJING MXTRONICS CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It avoids the problem that SpaceWire routers are connected through SpaceWire ports and reduces the total number of SpaceWire ports, and solves the problem of logical conversion when SpaceWire routers are directly connected through external parallel ports; connection, which solves the problem of debugging the processor to the router

Method used

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  • SpaceWire router cascade structure capable of expanding SpaceWire port
  • SpaceWire router cascade structure capable of expanding SpaceWire port
  • SpaceWire router cascade structure capable of expanding SpaceWire port

Examples

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail with reference to the accompanying drawings.

[0022] Such as figure 1 As shown, the present invention is a cascading structure of SpaceWire routers extending SpaceWire ports. In this embodiment, the cascading structure of SpaceWire routers extending SpaceWire ports includes: SpaceWire router A and SpaceWire router B. in:

[0023] The structure of the SpaceWire router A and the SpaceWire router B is exactly the same, both including 8 SpaceWire ports and 2 external parallel ports; the SpaceWire port is used to connect other SpaceWire nodes or SpaceWire routers in the SpaceWire network, and an external parallel port is used for connecting with An external processor is connected for easy control and monitoring of the processor, and another external parallel port is used for direct cascad...

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PUM

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Abstract

The invention discloses a SpaceWire router cascade structure capable of expanding a SpaceWire port. The SpaceWire router cascade structure capable of expanding the SpaceWire port comprises a SpaceWirerouter A and a SpaceWire router B, wherein the SpaceWire router A and the SpaceWire router B respectively comprise a SpaceWire port and an external parallel port, and the SpaceWire port is connectedwith the external parallel port. The external parallel port comprises a sending FIFO and a receiving FIFO. The receiving FIFO of the SpaceWire router A is connected with the sending FIFO of the SpaceWire router B; the sending FIFO of the SpaceWire router A is connected with the receiving FIFO of the SpaceWire router B; by means of the cascading mode, extra hardware resources are saved, the SpaceWire ports of the SpaceWire router are expanded, and the transmission efficiency of the SpaceWire network is improved.

Description

technical field [0001] The invention belongs to the field of integrated circuit design and is used for communication and data exchange between on-board electronic equipment, and relates to a SpaceWire router cascading structure for expanding SpaceWire ports. Background technique [0002] SpaceWire is a high-speed two-way, full-duplex data transmission network. It aims to connect payloads such as onboard sensors, processing units, and storage systems into a comprehensive data processing network. It combines the advantages of standards such as IEEE1355-1995 and LVDS, and is suitable for building high-performance onboard data networks. It can effectively reduce the cost of system integration, improve the compatibility between data processing equipment and subsystems, and enhance the reusability of payloads in different space tasks. [0003] The devices that make up a SpaceWire network include communications controllers and routers. A SpaceWire router connects each functional ...

Claims

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Application Information

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IPC IPC(8): H04L12/775H04L45/58
CPCH04L45/58
Inventor 邹萌庄伟于立新彭和平飞海东王兴友
Owner BEIJING MXTRONICS CORP
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