Debugging system and method for CAN (Controller Area Network) bus controller

Abstract

The invention relates to debugging system and method for a CAN (Controller Area Network) bus controller. The debugging system comprises a PC (Personal Computer) (1), a diagnosis module (2), an analog output module (3), a data acquisition module (4), an analog load box (5) and the CAN bus controller (7), wherein the PC (1) is electrically connected with the diagnosis module (2) through a USB (Universal Serial Bus) interface line, the diagnosis module (2) is electrically connected with the analog output module (3) through a CAN bus, the analog output module (3) is electrically connected with the CAN bus controller (7), the CAN bus controller (7) is electrically connected with the analog load box (5) and is electrically connected with the diagnosis module (2) through the CAN bus, the data acquisition module (4) is electrically connected with the analog load box (5) and is connected with the diagnosis module (2) through the CAN bus after acquiring signals, and a data report is generated with the debugging method by adopting the debugging system. The invention has the advantages of convenient debugging and capability of preferably judging the reason of a fault.

Description

technical field [0001] The invention relates to the field of automobile electronic control, in particular to the field of automobile bus control, in particular to a CAN bus controller debugging system and a debugging method. Background technique [0002] As the "meridian" of the distributed servo control system, the bus is responsible for data exchange and command transmission between subsystems. It is an important part of the distributed control system. Its performance directly determines the performance of the entire distributed control system. . CAN, the full name is "ControllerAreaNetwork", that is, Controller Area Network, which is one of the most widely used field buses in the world. CAN bus is a data communication protocol developed by German Bosch Company in the early 1980s to solve the data exchange between control and test instruments in modern automobiles. It is a multi-master serial communication bus. The basic design specification requires high bit rate, high ...

AI Technical Summary

Problems solved by technology

Although this kind of debugging system has a simple structure, it is very inconvenient to debug. It can only control one load at a time, and it is necessary to manually operate the control switch of each load. It is also very inconvenient to record the execution status. It is difficult to judge where the problem is, so that it is impossible to troubleshoot the CAN bus controller or other modules in a more targeted manner

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