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RapidIO switch error processing method based on SOC

An error handling and switching technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as port blocking, system failure, and catastrophic aircraft flight safety, and achieve the effect of improving robustness.

Active Publication Date: 2020-12-15
SHAANXI QIANSHAN AVIONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some special cases, the RapidIO switch will block the port, which will cause the RapidIO network to be paralyzed, and then cause the entire system to fail, which will bring disastrous consequences to the flight safety of the aircraft.

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  • RapidIO switch error processing method based on SOC

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] The RapidIO switch network topology is as follows: figure 1 As shown, the data communication node is realized by SOC, and RapidIOIP is used to manage the switch.

[0022] The error handling mechanism of the RapidIO switch is divided into two steps, namely fault detection and fault recovery. The fault detection of the switch can be completed through the RapidIO IP core, and the detection signal provided by the RapidIO IP core can be used to detect the communication status of the link. Once a problem occurs in the communication link of the switch, the communication service of the switch will be stopped immediately, and the fault recovery process will be entered. When the switch fails, software reset and hardware res...

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Abstract

The invention provides a RapidIO switch error processing method based on an SOC, and the method comprises the steps: building a RapidIO switch communication port error detection process on an SOC processor through a RapidIO interface; establishing a RapidIO switch fault recovery process on the SOC processor through an i2c physical interface, wherein the RapidIO switch communication port error detection process and the RapidIO switch fault recovery process are independent of each other. According to the invention, the fault processing efficiency of the RapidIO switch for avionics network communication can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of aviation on-board electronics, and in particular relates to an SOC-based RapidIO switch error processing method. Background technique [0002] As the most commonly used serial data bus in the prior art, RapidIO is widely used in the field of avionics due to its fast transmission speed, small transmission delay, and flexible topology. As the core of RapidIO, the switch plays a very important role in the stability of the whole system. However, in some special cases, the RapidIO switch will block the port, which will cause the RapidIO network to be paralyzed, and then cause the entire system to fail, which will bring disastrous consequences to the flight safety of the aircraft. SUMMARY OF THE INVENTION [0003] Therefore, in order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an SOC-based RapidIO switch error handling method to improve the processing efficie...

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Application Information

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IPC IPC(8): H04L12/935H04L12/939H04L49/111
CPCH04L49/555H04L49/557H04L49/30Y02D10/00
Inventor 杨斌斌程金张柯季园媛
Owner SHAANXI QIANSHAN AVIONICS