I made a board using the stm32f407 chip, and the network solution uses the lan8720A chip. However, I encountered a strange problem: After connecting the board to the power system, turn on the power sw...
When it comes to wireless transmission, the issue that everyone is most concerned about is the transmission distance. If it is an ideal transmission environment, this problem is not difficult to solve...
Author: Helon CHEN, ST engineer
Click to download the pdf document:Q: How to calculate the response time from shutdown state to ready state
A: To calculate the transition time from SHUTDOWN to READY, ...
Battery and external power switching circuit, MOS on and off conditions1. Battery and external power switching circuit, is there a simpler circuit that can realize the function of automatic power swit...
[i=s]This post was last edited by cruelfox on 2019-1-20 21:34[/i] After the K64 MCU was down-clocked, when running the minimalist application project I wrote (the screen backlight was also turned off,...
PIC microcontrollers have computing functions and memory like a CPU and are controlled by software. However, the processing power is average and the memory capacity is also limited, depending on the ...[Details]
Abstract: AD7892 is an LC2MOS single-supply 12-bit analog-to-digital converter produced by AD Company in the United States. It can output in parallel or serially. This article introduces its func...[Details]
Korean media quoted Nikkei as saying that the semiconductor trade control imposed by the Japanese government on South Korea last year actually had a negative impact on Japanese material manufacturers...[Details]
introduction Steel diameter is an important technical indicator. During the rolling process, the diameter must be measured and monitored to ensure that the finished product meets the requirements. Th...[Details]
Acoustic holography is a technique that maps noise to an intensity distribution and locates the source of noise. It uses an array of microphones or antennas to generate an acoustic image of the noise ...[Details]
Wireless sensor network
Wireless sensor network technology is a short-range, low-complexity, low-power, low-data-rate, low-cost two-way wireless communication technology. It is a group of techn...[Details]
There are two ways to boot JZ2440, one is to boot from NOR FLASH, and the other is to boot from NAND FLASH. If booted from NOR FLASH, the CPU will access address 0 of NOR FLASH, and address 0 i...[Details]
According to the latest annual global silicon wafer shipment forecast report for the semiconductor industry released by the Semiconductor Industry Association (SEMI), silicon wafer shipment area is e...[Details]
Last month, Samsung officially released the Galaxy S20 FE (Fan Edition) smartphone. Samsung aims to bring the flagship experience to a wider audience at an affordable price. The phone started shippin...[Details]
Recently, a Huawei P40 option has quietly appeared in the memory upgrade service of Huawei's official website. According to the information on the official website, users can choose to upgrade ...[Details]
Gartner identifies 10 common mistakes in developing cloud strategies
Cloud strategy must work with other strategies
Cloud strategy provides a high-level overview of th...[Details]
On February 27, 2023, the 10th Mercedes-Benz China Sustainable Development Dialogue was held online. At the meeting, Mercedes-Benz publicly announced that it had officially signed a memorandum of c...[Details]
The class has already started, but I haven't finished the summary yet. I'm not in a hurry. They say that slow work makes fine work, but I don't know if mine can be considered fine work. I'll just com...[Details]
Recently, parts manufacturer Magna announced that it is working with three partners, including the U.S. Department of Energy, to develop drive motors for the next generation of pure electric vehicles...[Details]
Fluorescent tube power supply
A 2N3055 oscillator (Q1) drives a Japanese transformer wound on a 5/16.5-inch ferrite sub-peak. S2 is used as a filament switch, but can be omitted if necessa...[Details]