[code] while(true){ assert(errno==0);//The error number here is equal to 0 int ret=select(nfds+1,&readFs,NULL,NULL,&timeOut); if( ret>0 ){ assert(errno==0x3d0002);//It must be 0x3d0002 (S_objLib_OBJ_U...
I want to read and write the RAM on the FPGA side on the arm side, but I don't know what function to use to read and write, alt_write_word, alt_read_word, is it possible? If it is possible, how to rea...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:47[/i] Have you ever participated in an electronic design competition? Do you know which electronic design competitions are held every year t...
[size=4][color=#000000][backcolor=white]1. Purpose of the experiment[/backcolor][/color][/size] [size=4][color=#000000][backcolor=white] [/backcolor][/color][/size] [size=4][color=#000000][backcolor=w...
This formula is taken directly from the book, saying that the voltage gain of the shooting follower is close to 1, but it can amplify the current. How was this formula derived?...
As the title says, I made an ultrasonic distance measurement, but after testing it, I found that the accuracy was low and the error was large. The module I used was HC-SR04, which I bought on Taobao f...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
The invention of the steam engine ushered in the first conversion of internal energy and mechanical energy for mankind, and the birth of the internal combustion engine at the end of the 19th centur...[Details]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]
introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that is rapidly developing...[Details]
Real-time operating system RTOS
京公网安备 11010802033920号
EEWORLD
