test—electronic regulator
Electronic regulator is an important part of electronic products, which is widely used in electronic production and plays a very important role in people's daily life. Electronic controller (ECU) is a microcomputer management center, which takes signal (data) collection, calculation and processing, analysis and judgment, and countermeasure decision as inputs, and then sends out adjustment instructions to command the actuator to work as output. Sometimes, it also needs to provide a stable power supply or reference voltage for the sensor. All its functions are completed by the sum of all kinds of hardware and software, and its core is a microcomputer system with single chip microcomputer as the main body.
The regulator is the command center of the computer, which is responsible for determining the sequence of program execution and giving the operation adjustment commands required by various parts of the machine when executing instructions. It consists of a program counter, an instruction register, an instruction decoder, a timing generator and an operation regulator. It is the "decision-making body" that issues orders, that is, it coordinates and directs the operation of the whole computer system. Regulators are divided into combinational logic regulators and microprogrammed regulators, each with its own advantages and disadvantages. The design of combinational logic regulator is troublesome and the structure is complex. Once the design is completed, it cannot be modified or expanded, but it is very fast. The microprogrammed regulator is easy to design, simple in structure and basically convenient to modify or expand. To modify the function of a machine instruction, just rewrite the corresponding microprogram. If you need to add machine instructions, just add microprograms to the adjustment memory. However, it is realized by executing microprograms.
