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Method for switching Baud rate of test board card to achieve communication in controller test

A technology for testing controllers and testing boards, which is applied in the direction of testing/monitoring control systems, electrical testing/monitoring, and general control systems. It can solve problems such as long time-consuming, time-consuming, and complicated processes, and shorten the time spent , The effect of improving test efficiency

Inactive Publication Date: 2019-01-29
XIAMEN JIAYUDE AUTOMOBILE ELECTRONICS TECH
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Problems solved by technology

When using a functional test board to test the controller, the baud rate of the CAN module on the test board needs to be consistent with that of the controller, and the baud rates used by controllers of different models are usually different. When using the baud rate controller, it is first necessary to determine what baud rate the test board is currently using. Since the test board does not have a clearly marked baud rate value, it takes time to measure the current baud rate of the test board, and then judge whether it is It is necessary to burn the program corresponding to the baud rate on the test board to meet the communication requirements
The above-mentioned process is cumbersome and takes a long time, which reduces the test efficiency of the test board

Method used

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  • Method for switching Baud rate of test board card to achieve communication in controller test

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the invention and should not be seen as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] In the claims, description and above-mentioned drawings of the present invention, unless otherwise clearly defined, the terms "first", "second" or "third" are used to distinguish different objects, not for Describe a specific order.

[0027] In the claims, specification and above-mentioned drawings of the present invention, unless otherwise clearly defined, for orientation words, such as using the terms "center", "transverse", "longit...

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Abstract

The invention discloses a method for switching the Baud rate of a test board card to achieve communication in a controller test. The Baud rate of the test board card after each start or restart is a first Baud rate set manually. The method comprises the steps of starting the test board card, sending a Baud rate switching instruction to the test board card, storing a required Baud rate value in a volatile memory, initializing a communication module and reading the Baud rate value in the volatile memory; completing Baud rate switching; adopting a new Baud rate to communicate with a controller; and the like. By adopting the above steps, the problem that the current Baud rate of the test board card cannot be known during the controller test is solved, meanwhile the problem that the test boardcard can communicate with the controller only by repeatedly programming a program corresponding to the Baud rate is solved, the time spent in adjusting the Baud rate of the test board card is greatlyshortened, and the test efficiency of the test board card is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for switching the baud rate of a test board to realize controller test communication. Background technique [0002] In automotive communication technology, the CAN communication protocol has become a widely used communication standard. In the use of the CAN communication protocol, the sending and receiving transmission rates need to be consistent to ensure the correct transmission of data. Therefore, it is necessary to ensure that the sending end and the receiving end are match the baud rate of the terminal. In the CAN bus system of a car, a controller is usually set up to control the data transmission of the vehicle. After the controller is manufactured, the controller needs to be tested, and a functional test board is used for the test. When using a functional test board to test the controller, the baud rate of the CAN module on the test board needs to be consis...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 施涌林伟强颜伟拓吴晓秋张斌
Owner XIAMEN JIAYUDE AUTOMOBILE ELECTRONICS TECH
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