FlexRay bus protocol analysis system and method based on digital fluorescent oscilloscope

A bus protocol and digital fluorescence technology, applied in the field of testing, can solve the problems of inability to effectively capture specific frame information of FlexRay bus, inconvenient to interpret FlexRay bus information, etc.

Active Publication Date: 2016-09-21
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The information transmission of the FlexRay bus is transmitted in the form of frame sequence. The traditional trigger method (such as edge trigger) of the measuring instrument cannot effectively capture the spec

Method used

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  • FlexRay bus protocol analysis system and method based on digital fluorescent oscilloscope
  • FlexRay bus protocol analysis system and method based on digital fluorescent oscilloscope
  • FlexRay bus protocol analysis system and method based on digital fluorescent oscilloscope

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Embodiment Construction

[0079] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0080] The invention proposes a FlexRay bus protocol analysis system and method based on a digital fluorescent oscilloscope. In the technical solution, the hardware is decoded and triggered, and the software is only responsible for display.

[0081] The overall block diagram of the FlexRay bus protocol analysis system based on the digital phosphor oscilloscope is as follows: image 3 As shown, it includes a user setting module, a PCIe module, a parameter regis...

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Abstract

The invention provides a FlexRay bus protocol analysis system and method based on a digital fluorescent oscilloscope. The system comprises a user setting module, a PCIe module, a parameter dwell vessel module, a decoding trigger module, a decoding storage module, a collection module and a display module. According to the system and method of the invention, the speed of hardware decoding is much higher than that of software decoding, hardware carries out decoding while hardware is used to trigger software decoding, decoding information can be stored in the manner of labels on the basis of a triggering scheme determined by software decoding, trigger position information is also stored, superior application software reads stored label information and trigger position information directly for display, a step of software decoding is omitted, the bus analysis speed is improved, and labor cost of secondary decoding by the software is omitted.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a FlexRay bus protocol analysis system based on a digital phosphor oscilloscope, and also to a FlexRay bus protocol analysis method based on a digital phosphor oscilloscope. Background technique [0002] The FlexRay bus is a relatively new automotive bus proposed by a group (FlexRay Alliance) of leading automotive companies and suppliers. FlexRay is suitable for wire-controlled operation (X-by-Wire), and has more flexible data communication methods, faster transmission rates, and higher security than existing automotive serial standards (such as CAN and LIN) And a more perfect fault tolerance mechanism. FlexRay is a differential bus with a rate up to 10Mb / s running on shielded twisted pair or unshielded twisted pair. It adopts a time-triggered protocol and realizes synchronous and asynchronous protocols through a communication cycle that includes both static frames and dynamic f...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/40H04L29/08
CPCH04L12/40006H04L12/40013H04L41/14H04L67/12
Inventor 贺增昊刘纪龙向前张成森刘洪庆
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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