Yesterday CDK was closed normally, but today when I open CDK, it has no response, and restarting the computer does not work. I am currently using: Win10Open the log to view:Click Close to view the log...
Hello everyone: I am using MC52I module now. After configuring the dialing, after ATD*99#, there is no data in the serial port, and NO carrier appears after a while. But when I send ATD*99# directly t...
ls /dev/ttyS*[/color][/font][color=#4f4f4f][font=-apple-system, "]The development board is connected to serial port ttyS2[/font][/color] Execute: [font=-apple-system, SF UI Text, Arial, PingFang SC, H...
[i=s]This post was last edited by maychang on 2016-3-19 08:59[/i] 1. The difference between the neutral wire and the ground wire The neutral wire is grounded at the power supply end (power plant, subs...
Hello, everyone:I have a question for you: I am developing in C language in DSPc2000. There are 7 cases in my switch statement. After compiling, I loaded it into DSP. When I used MIX mode to view it, ...
I am a 51 MCU beginner . After writing a program with Keil , I need to solve the following problems when debugging: 1. Some lines in the program can only be broken if there is a gray line in front of ...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]