Embedded system test method

Abstract

The invention relates to an embedded system testing method. Hardware and assistance software are adopted; firstly, pile pitching is carried out on a source code, a sentence is inserted in a specific place, then a pile pitching document is compiled and downloaded; when a target board operates to a pile pitching point, a bus presents specific signals, the auxiliary hardware of a data acquisition unit acquires the signals of the pile pitching points; subsequently, the acquisition point information is packed and sent to a testing result analyzing software for result analysis, thus the embedded system testing is realized. The testing includes coverage analysis, performance analysis, memory leak analysis, array out-of-range, variable control, trace following, Task monitoring, ISR monitoring, TaskISR switching monitoring, etc.

Description

technical field [0001] The present invention relates to the field of computer systems, in particular to the technical field of computer embedded system testing, and in particular to an embedded system testing method. Background technique [0002] With the continuous development of computer technology, especially the strong domestic electronic information product manufacturing industry and huge information market have created important opportunities for the development of embedded software industry. Such as: 3G, digital TV, network equipment, etc. Driven by these demands, the embedded system software market grows rapidly, and the testing of embedded devices has become a very important link. At present, the embedded system testing generally adopts pure software testing methods. Insert a function in a specific position of the tested code, use these functions to complete the data generation, and send the data to the shared memory of the target system, and run a preprocessing tas...

AI Technical Summary

Problems solved by technology

Due to the existence of instrumentation functions and preprocessing tasks, the code of the system increases. What is more serious is that these codes have a great impact on the operating efficiency of the system (more than 50%). The function itself must have its implementation process. It needs to complete the generation and temporary storage of data, and these functions may be interrupted by other interrupt programs with higher priority during its implementation. The preprocessing task needs to occupy the target system CPU processing time, shared memory and communication channel to complete Data processing and data uploading all need to be completed with the help of the target system CPU, which will have a serious impact on the target system, and even cause the system under test to crash

Due to the existence of these disadvantages, the test efficiency and test accuracy of the pure software test method are greatly reduced.

Images