A testing method of using a single chip microcomputer state testing pen

Abstract

The invention relates to a testing method for monitoring the working state of a single-chip microcomputer by using a single-chip microcomputer state testing pen, belonging to the technical field of embedded development. The method comprises adopting a special single chip microcomputer test pen equipped with a single chip microcomputer test pen program to test, and inserting the embedded test program into the original program of the single chip microcomputer to be tested; using a special single-chip microcomputer testing pen to detect and analyze the signal output from the specified pin of thetested single-chip microcomputer, and obtaining the register working state of the single-chip microcomputer, which ensures the minimum influence on the original program of the tested system. The method solves the problem of requiring the special simulator of the brand supplier when monitoring the working state of different brand single-chip microcomputer of different manufacturers, and provides convenience for the development of embedded products. This method monitors the working state of many kinds of single chip microcomputers, which has small hardware requirement and good real-time test performance. The method is flexible in testing and analysis and low in cost, is easy to carry, and has the practical value.

Description

technical field [0001] The invention belongs to the technical field of embedded development, and relates to a test method for monitoring the working state of a single-chip microcomputer by using a single-chip microcomputer state test pen. Background technique [0002] Microcontrollers are widely used in embedded development. Usually, the online debugging of the single-chip microcomputer uses a dedicated emulator developed by the single-chip supplier and related development software on the PC. However, MCUs from different suppliers require completely different and incompatible emulators and development software, which greatly increases the cost of R&D departments when developing MCUs from different suppliers. Moreover, online debugging usually requires the use of single-chip JTAG or SW interface, which not only takes up more system resources, but also does not support single-chip microcomputers with a small number of pins and most 8-bit single-chip microcomputers. Zhou Yun ...

AI Technical Summary

Problems solved by technology

Using less hardware and software resources, it solves the problem of requiring a dedicated emulator for the brand supplier when monitoring the working status of different brands of single-chip microcomputers from different manufacturers

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