uchar temp = 0; int ii; uchar tt,tt2; uchar a = 0, b = 0, c = 0; float f = 123.456; ii=653; a = f; f = f - a; f = f * 1000; b = (uchar)f; _nop_(); b = (uchar)((uchar)f / 100); //??? b=0xC8=200 ??? Why...
Quartus 2 will automatically close the software when opening a project, and the same problem will occur when creating a new project. However, it can open .V files. What is the reason? Please give me s...
A relative of mine runs a shop. He wants to make the garage shutter door into an automatic card swiping control, and designs a single-chip microcomputer control. It involves a photoelectric switch // ...
I want to write a function to operate the sqlce database in wince in my computer, but the system path is always wrong. How can I realize the computer's access to the sqlce database in wince? Thank you...
PSoC4 Virtual Voltmeter Watching the video first and then reading the article may make it easier for you to understand http://v.youku.com/v_show/id_XNjIyNzAzNDUy.html 1.1 Purpose and Function of the E...
This circuit can automatically disconnect the charging or discharging circuit of two nickel-cadmium batteries when they are charged to 3V or discharged to 1.34V, effectively preventing overcharging or...
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
1. Introduction
With the gradual automation and modernization of industrial control systems, fieldbus control systems have received more and more attention and application. CAN bus is currentl...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1 Introduction
The Third Steel Plant of Jigang Group is a key investment project of Jigang Group during the "15th Five-Year Plan". It has introduced first-class domestic and foreign advanced eq...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[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]
The ARINC429 bus is one of the most commonly used communication buses between various subsystems of avionics. As the "skeleton" of modern avionics systems, once the bus system or the attached airbo...[Details]
store
To prevent moisture, LEDs should be stored in a dry and ventilated environment with a storage temperature of -40°C to +100°C and a relative humidity below 85%.
The LED should be use...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]