RC filter is a simple filter most commonly used in analog circuits. Let's discuss the influence of R and C on circuit characteristics. For a circuit with a certain cutoff frequency, that is, after the...
[font=微软雅黑][b]3.1 GPIO driver and development3.11 Principle analysis:[/b] We have learned 51 MCU and used IO port before. Compared with 51 IO, Cortex M4 IO configuration is a little different. 51 does...
When I write this sentence in the program: Push_Key = (P1IFG&(~P1DIR)); to read which button is pressed, there will be a reminder undefined behavior: the order of volatile accesses is undefined in thi...
Diodes are also called crystal diodes, or diodes for short. In addition, there are early vacuum electronic diodes; they are electronic devices that conduct current in one direction. Among electronic c...
I finished the first experiment of the marquee, and I did the second experiment again. I found that after I powered on the DSP board, the experiment that was downloaded to it for the first time was st...
"Precision" is used to describe the accuracy of physical quantities, which reflects the error between the measured value and the true value, while "resolution" is used to describe the scale division, ...
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
1. Introduction
This design was made for participating in an electronic design competition. It effectively solved the problem of the operation and control of an electric car on a seesaw. The s...[Details]
With the advent of increasingly powerful processors, image sensors, memory, and other semiconductor devices, as well as the algorithms that enable them, computer vision can be implemented in a wide...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[Details]
As people's requirements for safety and comfort in the process of driving cars continue to increase, automotive radars are widely used in the car's adaptive cruise system, collision avoidance syste...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Analog electronics
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