[i=s] This post was last edited by qwqwqw2088 on 2014-5-6 18:58[/i] [align=left][font="][size=12.0pt][b]Block diagram[/b][/size][/font][/align][align=left][font="][size=12.0pt][b] [/b][/size][/font][/...
When testing the GPIO_KEY_LED routine, I found that the JOYSTICK did not respond when pressed, and the LED kept displaying a ticker. Looking at the code, I found that this was the LED display state wh...
If you are a mobile phone power management expert and want to work in Beijing, please contact me at rebecca.xue@shiningcareer.com.cn ., QQ 617060970...
The s3c2440 board sets GPB1, 3, 5, 7 as inputs and reads GPBDAT. The program is as follows: U32 temp; rGPGCON = rGPGCON & (~((3<<14)|(3<<10)|(3<<6)|(3<<2))); rGPGUP = rGPGUP & ~0xaa|0xaa; temp = rGPGD...
My computer uses the school's DR.COM dial-up to the Internet. How can I achieve multi-user Internet access on a single machine? Urgent! The premise is to use the WINDOS operating system. Only one user...
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[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]
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]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[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
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
The power supply is the core component of a computer. Although it is not of high value, all computer components rely on the switching power adapter to provide energy, so the stability of a power su...[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]
For a long time, my country has implemented "community-style collective heating" for hot water heating, and settled accounts based on the heating area, regardless of whether the user uses heat. Thi...[Details]
SL11R is a 16-bit RISC microcontroller with a USB interface produced by Scanlogic. Its core processing speed reaches 48MIPS. It has rich hardware resources and 32-bit programmable I/O ports, and ca...[Details]