What is a microcontroller? How to control it?

Single-chip microcomputer is a kind of integrated circuit chip, which is a small and perfect microcomputer system composed of a small and perfect microcomputer system composed of a silicon wafer composed of ultra-large-scale integrated circuit technology, which integrates the best processor CPU RAM, read-only memory ROM, a variety of IO ports and interrupt systems, timers and other functions (may also include display drive circuits, pulse width modulation circuits, analog multiplexers, AD converters and other circuits) into a silicon wafer, which is widely used in the field of industrial control. From the 80s of the last century, from the 4-bit and 8-bit single-chip microcomputers at that time, to the current 32-bit 300m high-speed single-chip microcomputer.

A single-chip microcomputer is an integrated circuit, which relies on the Harvard structure (the general personal computer is the von Neumann structure), and integrates various entities such as combinators, memories, and IO ports into a chip.

To implement the control, it is necessary to use a special ** circuit to inject the program into the microcontroller. Generally, it is programmed in a special C language, and converted into machine language with a specified compilation program (different microcontroller software is different) and finally carried out**.

In fact, a single-chip microcomputer is a chip of an integrated circuit, which is equivalent to a small CPU of a circuit, which plays the role of controlling this circuit. It is controlled by writing a program in C. Hope my return can help you.

A computer with fewer features than a computer. Control: Endless loop plus interruption.

The single-chip microcomputer only outputs the signal, passes through the isolation circuit, and then drives the motor through the power switch circuit.

The control of the ordinary three-way asynchronous motor can drive a small power relay after the output signal of the single-chip microcomputer through the triode, and the relay drives the AC contactor, and then controls the motor, and the single-chip microcomputer signal can be amplified by the triode and directly drives the power relay. There are many, many ways to do this. As for the drive servo, the signal of the single-chip microcomputer port can be directly driven after being optocoupled, and the driving signal required by the servo driver itself is a weak signal.

Precautions for single-chip microcomputer.

Generally, in the data sheet of the microcontroller, the requirements for the reset signal required by the microcontroller will be mentioned. The width of the general reset signal should be. The width and amplitude of the reset level should meet the requirements of the chip and be stable.

It is also important that the reset level occurs at the same time as the power supply is powered on, i.e. as soon as the chip is powered on, the reset signal is generated.

Otherwise, because it has not been reset, the value of the register in the microcontroller is a random value, and when it is powered on, it will start to run the program according to the random content in the PC register, so that it is easy to misoperate or enter the crash state.

The use of single-chip microcomputer mainly has the following steps:

4.System debugging, debugging the single-chip microcomputer to complete the final function of the system.

Expansion: In the process of using the single-chip microcomputer, it is necessary to pay attention to the program space of the single-chip microcomputer, if the program space is not enough, it is necessary to consider the use of external memory and other technologies; At the same time, it is also necessary to pay attention to the source program and compiled program of the single-chip microcomputer, as well as the security of the single-chip microcomputer burning program, otherwise the function of the single-chip microcomputer may be damaged.

SCM is widely used, such as smart meters, real-time industrial control, communication equipment, navigation systems, household appliances, etc.

Once a variety of products are used with a single-chip microcomputer, it can play a role in upgrading the product.

Single-chip microcomputer, also known as single-chip microcontroller, its full name is single-chip microcomputer, referred to as single-chip microcomputer (MCU). It is a typical embedded microcontroller and is also an integrated circuit chip.

The microcontroller is not a chip that completes a certain logic function, but integrates a computer system into a chip. It is equivalent to a miniature computer, and compared with a computer, the microcontroller only lacks the IO device. In a nutshell:

A chip becomes a computer. It is small in size, light in weight and cheap, which provides convenient conditions for learning, application and development. At the same time, learning to use a microcontroller is the best choice to understand the principles and structure of computers.

A microcontroller is a microcomputer chip with integrated circuits of microprocessors, memory, impulse differential input and output ports, and other peripherals. It can be used to control various electronic devices, such as household appliances, automotive electronics, medical equipment, smart home devices, etc. The single-chip microcomputer has fast running speed, low power consumption, small size, and low cost, so it is widely used in various fields.

The microcontroller is usually programmed using assembly language, C language or other high-level languages, and controls the operation and status of peripheral devices by inputting program instructions to the microcontroller. For example, by controlling the output port of the single-chip microcomputer, the switching status of LED lights, motors, relays and other equipment can be controlled, so as to achieve various functions. The microcontroller can also realize various complex control tasks through interrupts, timers and other mechanisms.

Hello dear microcomputer is a kind of microcomputer, which integrates basic components such as CPU, memory, input and output interfaces and clock circuits, which can be used in control systems, embedded systems, smart homes, smart wearable devices, smart toys and other fields. MCU has the advantages of small size, low power consumption, low cost, high reliability, and easy programming, so it is widely used in various electronic devices. The main function of the single-chip microcomputer is to control its input and output interfaces through programming to realize the control and data processing of external devices.

For example, the speed of the motor, the brightness of the lamp, and the data of the sensor can be read by the microcontroller. In addition, the microcontroller hidden bridge can also realize various algorithms, such as digital signal processing, image processing, machine learning, etc. In short, single-chip microcomputer is an important electronic component, which plays a vital role in various electronic devices.

Whether it is smart home, smart wearable devices, smart toys, or industrial automation, medical equipment, transportation and other fields, single-chip microcomputers are needed to achieve various functions.