FCT -- functional circuit test (I .e.: function test)

FCT (functional testing) refers to a simulated running environment (incentive and load) provided to the testing target board (UUT: Unit under test) so that it can work in various design states, so as to obtain parameters of various States to verify the UUT function is good or bad test method. Simply put, it is to load appropriate incentives for UUT and determine whether the Output Response meets the requirements. Generally, it refers to the function test of pcba.

Directory

1. Proof of the logistics industry

2. Target Board function test

Classification of function tests

Pcba function test

Edit this section 1. FCT Full name: Forwarders Certificate of transport (FIATA) Freight Forwarder transport certificate edit this section 2. functional Test of the target board (FCT) is called functional circuit test (function test) 3 Fudan computer capability level testFull name: Fudan computer test edit this section function test classification function test according to different control modes, can be divided into manual control function test, semi-automatic control function test, automatic control function test. The earliest functional tests were mainly performed manually or semi-automatically. Even now, for some simple functional tests of tested panels, we sometimes adopt manual or semi-automated testing solutions based on simplified design and reduced production costs. With the development of science and technology, in order to save production costs, the vast majority of current functional tests use fully automated solutions.

Another more common classification is based on the Controller type of function testing. In the function test, we usually use MCU control mode, embedded CPU control mode, PC control mode, and PLC control mode.

The MCU control mode can be regarded as a simple embedded control. MCU and embedded control methods are characterized by: ◇ fast test execution speed; ◇ simple and direct test operation; ◇ display and data output require special circuits and programs; ◇ test solution is highly targeted; ◇ convenient modification of testing software; PC control method is now the most widely used FCT development method. This is mainly because: ◇ PC technology has become the basic technology today; ◇ PC is cheap; ◇ PC is very convenient in terms of file processing and data output of test results on the operating system; ◇ the test software is closer to the user; ◇ the software is slightly more complex; the control method of PLC is also a common FCT Development Method for the tested board with simple functions. However, its focus is mostly on controlling the sensing part, while its measurement function for the tested board is weak. This is mainly because PLC is specialized in industrial control products. Composition of the Function Testing SystemNo matter how the function is tested, the system results of pcba are divided into the following parts: 1. system Control Center: This part is generally composed of a PC, MCU, arm, and other small or medium-sized central processors. It is mainly used to control the entire process of the test, determine and record the test content in each step, and finally obtain the test result. It is the core brain of the entire test system.

2. Control execution part: the control execution part is mainly composed of I/O components. It is the induction and execution mechanism for testing the logical action of the process. The system uses it to build various test environments for testing. 3. Parameter Measurement part: The measurement part is mainly composed of boards and instruments used for measurement. It can be used to collect various analog or numeric values during the test. So sometimes we call it the data collection part. 4. Data Processing and output: each step and the final test result are the purposes of our entire test. How to store and output these results and data makes it easier for us to effectively control the quality of pcba products. This is the responsibility of data processing and output. Edit this section of the pcba function to test the Chinese name of pcba as a printed circuit board. In the batch production process of pcba, due to various possible factors of the equipment and operator, it is impossible to ensure that all the pcba produced is complete. This requires that a variety of testing equipment and tools be added at the end of production to ensure that all the factory-mounted circuit boards are completely consistent with the various specifications and parameters of the design. This produces ICT, Aoi, X-ray, boundary-scan, FCT and other testing methods.