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CAN FD communication protocol verification system

A verification system and communication protocol technology, applied in the field of CANFD communication protocol verification system, can solve the problems of inability to use different industrial application requirements and low test efficiency, and achieve the effect of reducing verification cost, improving reliability and avoiding reliability.

Inactive Publication Date: 2016-12-07
SICHUAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a CAN FD communication protocol verification system, which aims to solve the problems that the existing CAN FD communication protocol verification system cannot be used for different industrial application requirements and the test efficiency is low

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] like figure 1 As shown, the CAN FD communication protocol verification system of the embodiment of the present invention includes: a module linkage layer 1 , a state linkage layer 2 , and a signal linkage layer 3 .

[0030] Module linkage layer 1 is used to realize the effective separation and division of CAN FD protocol functions, reduce signal redundancy between modules, and increase the flexibility of realizing internal functions of a single module.

[0031] Module linkage ...

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Abstract

The invention discloses a CAN FD communication protocol verification system. The system comprises a module linkage layer, a state linkage layer and a signal linkage layer. According to the system, a CAN FD soft kernel that realizes a whole protocol frame by a three-layer architecture model is adopted, so that a protocol can be conveniently improved for a specific application need while complete compatibility with a standard CAN FD protocol is ensured; the stability of the whole CAN FD protocol is guaranteed and any property of the CAN FD protocol can be quickly modified through a VHDL, so that the CAN FD protocol can be immediately verified through the verification system; an FPGA-based CAN FD star-type electric signal switching node soft kernel is originally created, so that transmission mediums such as twisted-pair wires, optical fibers and the like are removed, the verification cost is reduced, the verification process is simplified, and the reliability of a verification result is improved; and CAN FD controller nodes can be directly connected with CAN FD star-type electric signal switching nodes through pins.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a CAN FD communication protocol verification system. Background technique [0002] As a new heat source with a unique mechanism of action, microwave has natural advantages in material drying, high-temperature sintering, smelting and extraction, and is widely used in food, agriculture, light industry, chemistry and other fields. Compared with traditional convection drying, the lignite drying production line using microwave as heat source has significant advantages such as safety, high efficiency, energy saving and environmental protection. According to the actual needs of the microwave lignite drying production line of Nanjing Sanle Company, the current microwave power distributed control system is designed. The distributed control system connects the upper computer and the embedded controller nodes distributed on the production line through the CAN bus to realize data exch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L69/03
Inventor 周新志唐臻宇钟睿
Owner SICHUAN UNIV
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