My BL is controlled by PWM (timer0), which is GPB0. I added the following at the end of eboot: s2450PWM = (S3C2450_PWM_REG *) OALPAtoVA(S3C2450_BASE_REG_PA_IOPORT,FALSE); s2450PWM->TCON |= (0X0<<0); W...
"LabVIEW Programming and Application (2nd Edition)" is based on the latest LabVIEW 7 Express version, and systematically introduces the basic concepts, key technologies, and practical application expe...
Please help me, I just started learning microcontrollers. It is required to detect temperature and humidity based on the single-chip microcomputer. The functional board is a tmp75 sensor, three LED li...
DirectDraw provides the ability to directly access display devices independent of hardware. It can achieve the purpose of directly operating display devices by directly accessing some functions in the...
《Electronic Circuit CAD Technology》 Xidian University Press Author: Jia Xinzhang Introduction to this book: Based on the explanation of the basic concepts of electronic CAD technology, this book i...
Introduction: Symmetric multiprocessing (SMP) has been a technology used to improve performance in the PC field in the past, and is now also being applied to mobile devices, which can significantly im...
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
It should be understood as follows: DC-DC means direct current to direct current (conversion of different DC power values). Anything that meets this definition can be called a DC-DC converter, incl...[Details]
0 Introduction
With the development of virtual instrument technology, new measurement and control methods that use "virtual instruments" to replace traditional instruments are replacing trad...[Details]
In the past 20 years, although the inverters that use power transistors (GTR) as inverter power devices, 8-bit microprocessors as control cores, and realize asynchronous motor speed regulation acco...[Details]
1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]