Deep Understanding of Linux Virtual Memory Management (Unformatted Chinese Edition) Content Introduction The behavior of the VM affects every subsystem of the Linux kernel and dynamically changes the ...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:27[/i] We are using AD603 to solve Problem C in the national competition, but self-excitation keeps happening. 20dB in one stage is a very go...
Since the USB-IF organization released the USB Type-C standard in 2013 and LeTV released the first mobile phone with a USB Type-C interface in 2014, the popularization of the USB-C interface has becom...
I would like to ask you: (1) Can the 8-bit data in the STM32 memory be sent to the upper 4 bits of GPIOB via DMA (8-bit data only outputs the upper 4 bits)? How to set it up? (2) When DMA sends data t...
1. In 2013, I posted 24 topics in total on EEWORLD. It is too difficult to count the number of replies. 2. The most unforgettable thing for you in EEWORLD in 2013 was participating in the DIY design a...
As an electronic control component, the electronic expansion valve has the advantages of high precision, fast and accurate action, obvious energy saving effect, etc., and is combined with other intell...
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
The ARINC429 bus is one of the most commonly used communication buses between various subsystems of avionics. As the "skeleton" of modern avionics systems, once the bus system or the attached airbo...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
1 Introduction
With the development of computer technology and information technology in the world, the global information age has arrived. All countries are formulating their own development p...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]
1 Causes of problems with electric vehicle batteries
1.1 Caused by the battery itself
Why do we say that? In the previous issue, we learned about the working princi...[Details]
Linux and Android
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