When writing Linux drivers, where can I find the prototypes or usage instructions of these API functions? For example, the function register_chrdev_region for registering device numbers cannot be foun...
From "brick" mobile phones to bulky TVs, power modules once occupied a considerable space in electronic and electrical products, and the market demand for higher power density continues to increase.
I...
[size=4]When making high-frequency power supplies, sampling of high-frequency AC signals is often involved. The traditional sampling circuit is as follows: [/size] [size=4] [/size] [align=center][size...
In the last issue, we have eliminated A. In this issue, we need to display the letters AB at the same time, which requires two lvgl tags. How to do it? I thought of the structure:
struct Obj{char name...
1 Introduction
As our military's strategic guidelines shift towards informatization, high-tech has been widely used throughout the life cycle of weapons and equipment, resulting in a dramatic inc...[Details]
Key points
Measurement devices used in industrial environments often require isolation to ensure user and system safety, as well as to ensure accurate measurements in the presence of high common-mode...[Details]
Features of large gas flow measurement: 1. The diameter is large, and the straight pipe section is often difficult to ensure 2. Low static pressure and low flow rate often allow only a small pre...[Details]
Figure 14-8 is a detection and discrimination circuit for FM and AM radios. It is a detection and discrimination circuit common to FM and AM radios, in which VT2 is the final stage circuit of the in...[Details]
According to foreign media reports, electrification has been a hot topic in the automotive field in recent years and is also a future development trend. In addition to emerging automakers such as Tes...[Details]
Chip Technology News (Text/Allis), according to Tech Crunch, Swiss startup energy company Insolight has come up with a new way to focus sunlight on batteries, which is twice as efficient as ordinary ...[Details]
1 Introduction CRC (Cyclic Redundancy Code) verification technology is widely used in the field of measurement, control and communication. In many cases, CRC calculation is implemented by dedicated...[Details]
There are only three days left until the Honor Magic V foldable screen phone launch on January 10, and more and more information about the new phone has been leaked. Today, the detailed configur...[Details]
In addition to using subtitle machines or computer animation equipment to produce television images, the first step in TV program production is to use a camera to capture images. The camera is the ...[Details]
About 540 million years ago, organisms evolved eyes, and more than 80% of the objective world information is perceived through the eyes; in the process of development, it has become a rapidly devel...[Details]
The MCU source program is as follows: #include reg52.h // Header file includes #include intrins.h #define uchar unsigned char // In the future, unsigned char can be rep...[Details]
The STM32F103xx series is called the enhanced product, and the maximum clock frequency of the enhanced product can reach 72MHz. The English name of the enhanced product is Performance Line.
The STM32...[Details]
This article introduces the main features, block diagram and typical application
circuit
of TPS65137
.
TI
's TPS65137 is an active matrix
OLED
(AM
OLED
)
...[Details]
PCB
technology:
the reason for connecting a capacitor between
the power supply
and the ground
1. The reason for connecting a capacitor between the power supply and...[Details]
The engine closed-loop feedback system is an advanced control technology that monitors the engine's operating status in real time and automatically adjusts the engine's operating parameters to achi...[Details]
Linux and Android
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