I want to use PCF8574 to expand an I/O port. There is only one input signal outside, connected to IN0. When there is input, timer T0 interrupt is generated. How can I read from PCF8574 to know that it...
The MSP-EXP430FR5739 Experimenter Board is a development platform for the MSP430FR57xx devices. It supports the new generation of MSP430 microprocessor devices with integrated ferroelectric random acc...
Actually it's not very difficult, but I posted it in other forums for a long time but couldn't find a solution, so I thought I'd try my luck here... It's mainly a problem with the vbios in the BIOS......
It can be displayed and interrupted, but the key value cannot be read! What is the reason? It was normal before and the program has not been changed. if(!key_INT) { key=ZLG7290_GetKey(); //The value r...
I wrote a gamepad driver joystick.dll in ce. It is written in the registry like this: [HKEY_LOCAL_MACHINE\Drivers\HID\LoadClients\Default\Default\1_5\Joystick] "DLL" = "Joystick.dll" I also want this ...
[color=#ff0000]The chip I use is STC89C58BD, and other chips have not been tested, please verify, [/color] /*--------------------Define buttons-----------------------------------------------*/ sbit K1...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
As we all know, the manufacturing of modern automobiles is divided into four major processes: stamping, welding, painting and assembly, and the powertrain constitutes five inseparable production pr...[Details]
Embedded System
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