The help manual says: Under normal circumstances, the recv function returns the number of bytes actually received, and returns -1 if the call fails. So, under what circumstances does the call fail? Is...
LDPC code is Low Density Parity Check Code (LDPC). LDPC code was first proposed by Gallager in his doctoral dissertation in the 1960s. However, due to the technical conditions at that time and the lac...
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I'm a newbie. I built a small interface with my friend using lm3s1138. Now I want to buy the EasyARM8962 ARM development kit. What programming software does Zhou Ligong's microcontroller c...
Analysis and processing of Protel 99 SE network table errors[/size][/font][/align][/align][align=center][align=center][font=黑体][size=18pt][/size][/font] [/align][/align][/font] The network table is a ...
EtherCAT (Ethernet for Control Automation Technology) is a real-time industrial fieldbus communication protocol based on an Ethernet-based development framework. EtherCAT is one of the fastest indu...[Details]
With the rapid development of technology, automotive intelligence is increasing at an unprecedented rate. This not only enhances vehicle functionality and comfort, but also places higher deman...[Details]
With the increasing number of new energy vehicles on the road, the deployment of supporting facilities for these vehicles has accelerated, and new energy vehicles have gradually entered the vision ...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
0 Introduction
Portable terminals integrate a computer and display screen into a single device. Due to limited space in portable devices, previous designs often used a single-chip microcompute...[Details]
As my country's industrialization continues to improve, environmental pollution is also facing tremendous pressure. In recent years, national environmental protection policies have become increasin...[Details]
The transition to SDVs (software-defined vehicles) involves more than just replacing parts; rather, it involves the organic connection of various elements, from internal vehicle systems to ext...[Details]
System Principle
According to the average imbalance rate of the branch three-phase phase line load and the average value of the branch phase line current, the adjustment of the phase line load...[Details]
In the first half of 2025, Chinese companies demonstrated overwhelming advantages in the world's four major material fields: in the global loading of positive electrode materials, Chinese companies...[Details]
According to foreign media reports, due to the massive expansion of Chinese companies in the global electric vehicle market, the capacity utilization rate of South Korea's three major battery manuf...[Details]
2025 World Expo
On August 10, 2025, Beijing—themed "Making Robots Smarter, Making Bodies More Human," the 2025 World Robot Expo opened grandly at the Beijing Beiren Yichuang International Exhi...[Details]
On August 9th, at the 2025 World Robotics Conference (WRC), Shenzhen Cyborg Robotics Co., Ltd. officially unveiled the Cyborg-H01, the world's first lightweight bionic dexterous hand. This core com...[Details]
In recent years, portable electronic devices such as mobile phones, digital cameras, music players, tablets, ultrabooks, and laptops have become almost a necessity, raising safety concerns. Besides...[Details]
Motors and insulating varnish are inseparable. The composition and manufacturing technology of insulating varnish have been continuously updated and improved, driving the rapid development of motor...[Details]
2. LED display structure and classification
By properly connecting LED chips (including series and parallel connections) and employing appropriate optical structures, light-emitting segments o...[Details]