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Universal embedded marker and marking method based on CCP

A calibration method and a calibration device technology, which are applied in the direction of data exchange, electrical components, transmission systems, etc. through path configuration, can solve the problems of slow communication speed, unreliability, and high cost, and achieve the effect of fast transmission speed and large memory range

Inactive Publication Date: 2006-03-15
ZHEJIANG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0009] In order to overcome the shortcomings of the prior art, the communication speed between the calibration tool and the ECU is slow, unreliable, and the calibration tool has poor versatility and high cost. The present invention provides an embedded universal calibration device and method based on the CCP protocol.

Method used

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  • Universal embedded marker and marking method based on CCP
  • Universal embedded marker and marking method based on CCP
  • Universal embedded marker and marking method based on CCP

Examples

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Embodiment Construction

[0033] The specific implementation manner of the present invention is introduced in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the platform adopted by the implementation examples of the present invention is composed of a PC and Motorola's HC12 processor control system, and is connected through a USB to CAN interface card. Among them, the PC includes the client of the graphical interface of the calibration program, and the lower computer includes the control system and flash driver, as well as the lower computer of the CCP protocol. If you need to add an additional processor, you need to connect its CAN interface to the CAN bus.

[0035] Such as figure 2 As shown, the hierarchical diagram of the upper computer calibration tool of the present invention. The upper computer calibration tool is composed of user interface layer, CCP protocol upper computer layer, CAN driver layer and USB to CAN hardware layer. The lowest-level USB-to-CAN har...

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Abstract

An embedded universal calibration device and method based on CCP protocol is disclosed. Said device is composed of a high-level calibrating tool running on PC for displaying the parameters to be monitored in ECU and sending commands to low-level unit, and a low-level unit running on the ECU to be calibrated for receiving the commands, executing the relative actions, returning the answer, and periodically sending the parameters to be monitored. Said high-level calibrating tool and low-level unit are connected via USB, CAN interface and CAN bus and the CN packets are used to calibrate and monitor the parameters in ECU.

Description

technical field [0001] The invention relates to the field of calibration monitoring of an electronic control unit (ECU) in embedded technology, and mainly relates to an embedded universal calibration device and method based on the CCP protocol. Background technique [0002] Most electronic control units (ECUs) need to go through a process of matching and calibration from the development of prototypes to the formation of products to determine their operating parameters and control parameters. Therefore, calibration tools are one of the key factors for successful product development. [0003] At present, the calibration system based on SCI serial communication has been widely used, but this method has the following defects: [0004] 1. Slow speed. Failure to meet the requirements of large data volume and high real-time performance may affect the operation of the application; [0005] 2. Unreliable. Susceptible to external interference, resulting in sending data errors; ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/40
Inventor 赵民德潘杭平吕炜烽李锡坤刘雁飞吴卿吴朝晖
Owner ZHEJIANG UNIV
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