In addition to ultra-low-cost portable products, color display has almost become a standard configuration for such products. In 2006, 3G is gradually moving towards actual operation. For display syste...
Function 1: Networking of the coordinator, terminal devices and routing devices discovering the network and joining the network//Step 1: Z-Stack starts with the main() function. The main() function do...
Three BOOT modes
The so-called boot, generally speaking, means that after we download the program and restart the chip, the value of the BOOT pin will be latched at the fourth rising edge of SYSCLK. T...
I've been working on Ethernet recently. The PHY chip is LAN8720 and the main control is PIC32MZ. Now the 8720 is configured and the clock is normal, but I don't know how to configure the data receivin...
These days, in my child’s extracurricular math study group, the teacher no longer sends geometry, combinatorics, number theory, or application questions, but instead sends series questions every day.
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altera cycloneV ddr3 initialization check failed (local_cal_fail is high). Where can I find the reason? The project was modified from the official routine, so the device model and pin assignment were ...
A light-emitting diode (LED) is a light-emitting device that directly injects current. It is the result of photons emitted when excited electrons inside a semiconductor crystal return from a high e...[Details]
On January 20, according to foreign media reports, Samsung Electronics, which has won 5G network equipment contracts from multiple US telecom operators, has been excluded from the 5G network deployme...[Details]
1. Introduction
With the rapid development of wireless technology, wireless devices are increasingly being used in various fields. More and more home electronic terminal devices are beginning ...[Details]
Some time ago, when I was writing a delay program, I encountered a problem with the timer counter wrapping, that is, the counter overflowed after reaching the maximum value. I wanted to find a simple ...[Details]
Recently, Canon released the EOS C300 Mark III and two new movie servo lenses, both of which have high optical performance suitable for 8K photography/camcorders, 10x optical zoom and built-in 1.5x t...[Details]
With the official implementation of China's latest mandatory national standard GB18613-2020 "Energy Efficiency Limits and Energy Efficiency Grades for Electric Motors" on June 1, 2021, IE3 has become...[Details]
On September 28, the first batch of 42.5 MW/85 MWh energy storage of Huaneng Shandandong Lebeitan 150 MW/300 MWh energy storage project was successfully connected to the grid.
Huan...[Details]
Recently, Saiwei Electronics said in an institutional survey that in recent years, the company's MEMS process development and wafer foundry capacity have been relatively tight, and the order schedule...[Details]
In the global environment of energy conservation, emission reduction and carbon neutrality, the development of new energy vehicles is faster than we imagined. Under the various subsidies and advocacy...[Details]
1 Introduction
PU is the heart of the computer, and the power supply is the energy source of the computer. At present, ATX power supplies have replaced AT power supplies and are widely ...[Details]
This morning, Apple pushed the official version of iOS 14.7.1. At the same time, the verification channel for the iOS 14.6 system was also closed. This means that if you have upgraded to iOS 1...[Details]
Technology media devclass reported yesterday (September 19) that in addition to releasing iOS/iPadOS 18 and macOS 15 Sequoia systems, Apple also released the Swift 6.0 programming language update.
...[Details]
1 Development history of LED
LED has a history of nearly 40 years. The first batch of commercialized LEDs appeared in 1968. Although LEDs have been limited by color and luminous efficiency for...[Details]
We are currently facing a major change that has not happened in a century. From climate change to the Sino-US trade war, from the COVID-19 pandemic to the Russia-Ukraine conflict, it can be said th...[Details]
Spread spectrum communication has been rapidly developed and widely used due to its advantages of good confidentiality, concealment, anti-interference and anti-multipath effects. Therefore, many co...[Details]