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Embedded system offline trace analysis method based on Trace information

An embedded system and analysis method technology, applied in the field of offline tracking analysis of embedded systems, can solve the problems of not covering system power-on and power-off processes, system power-off, etc., and achieve the effect of intuitive sequential logic and easy analysis

Active Publication Date: 2013-11-20
HUIZHOU DESAY SV AUTOMOTIVE
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, they all belong to the online simulation technology. If the voltage is too low, the voltage is too high, or the system is powered off, it will be forced to exit the simulation environment.
Therefore, online simulation debugging cannot cover the process of system power-on and power-off

Method used

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Embodiment Construction

[0011] In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below.

[0012] The present invention discloses an embedded system offline tracking analysis method based on Trace information, comprising the following steps: (1) setting a Trace information monitor at the entrance and exit of each state of the embedded system; the Trace information monitor can be a section The test function, when the program enters or exits a certain state, can collect information such as the number ID of the current state, the entry or exit state Direction, the time of the runtime system Timer, and the parameter index to be detected.

[0013] In order to facilitate the reconstruction of the running logic of the program on the host computer, each Trace information monitor has a unique ID. The state number ID is coded in layer order, the first bit of the ID represents the top-level state, and ...

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Abstract

The invention discloses an embedded system offline trace analysis method based on Trace information. The embedded system offline trace analysis method based on the Trace information is characterized by comprising the following steps that (1) Trace information monitors are arranged on entrances and exits of all states of an embedded system; (2) the Trace information collected in the step (1) is sent to an upper computer; (3) the upper computer receives the relevant Trace information and then conducts analysis and logic diagram reconstitution on the Trace information. The Trace information comprises the number ID of the states, the direction of entering in or exiting the states, the time of the system in operation and parameter indexes needing to be detected. The embedded system offline trace analysis method based on the Trace information achieves real-time trace analysis in the process of power down and power on of the system, and fills the blank of an existing online simulation debugging method in the process. Sequential logic of inside programs of the system in operation is imaging-displayed in a state diagram mode, the sequential logic of a source code is made to be more visual, and analysis is facilitated.

Description

technical field [0001] The invention relates to an off-line tracking analysis method of an embedded system based on Trace information. Background technique [0002] Emulation and debugging of embedded system is one of the essential links in the development process of embedded system software. If simulation debugging is not possible, then the development of embedded systems will become very difficult. At present, more popular simulation technologies include: software simulation, memory monitoring simulation debugging, hardware simulation debugging and other technologies. However, they all belong to the online simulation technology. If the voltage is too low, the voltage is too high, or the system is powered off, it will be forced to exit the simulation environment. Therefore, online simulation debugging cannot cover the process of system power-on and power-off. The power-on process and power-off process have strict requirements for some products that need to adapt to comple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/36
Inventor 李明智朱世勇方泽文
Owner HUIZHOU DESAY SV AUTOMOTIVE
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