SCM test methods
Update date：2012-6-25
SCM is the electronics industry with the most chips, its scope is too broad, the microcontroller of the Institute test is very important. SCM system can be divided into two aspects of the software and hardware to ensure that the SCM system reliability it is necessary manpower from these two areas.
First in the design of the SCM system, you should fully take into account all possible interference of the external, to make full use of all means provided by the microcontroller to sever or address the impact of adverse external interference. When a microcontroller system design is completed, the SCM system will have different test items and methods, but some must be tested.
(1) Test MCU software features perfect. This is for all single-chip system function test, the test software is written correctly and completely.
(2) power on, power-down test. In using the user will inevitably encounter the power-on and power-down situation, many switching power supply, testing the microcontroller system reliability.
(3) aging test. Test for a long time: for the case of single-chip system reliability. If necessary, can be placed in the environment of high temperature, high voltage and strong electromagnetic interference testing.
(4) ESD and EFT test. Can use a variety of interference simulator to test the reliability of the SCM system. Such as the use of the static simulator to test antistatic ESD capability of the microcontroller system; surge noise simulator rapid pulse interference EFT test.
Of course, if there is no such conditions can simulate human use, may be issued to the destruction of cattle. For example, the body or clothing fabric intentional friction contact port on the SCM system, the antistatic ability of this test. High-power drill, close to the SCM system, which test the anti-electromagnetic interference capability.
Shenzhen East guide Technology is a company engaged in the MCU decryption nearly a decade, the company, which has a dedicated chip to decrypt Division, a group of senior MCU decryption engineers, such as the need for single-chip decryption, please contact us.
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