I made a PCI to serial port driver. After installing the driver, only if a new serial port (such as COM7) is added in the registry [HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SERIALCOMM], the HyperTerminal...
[align=center][font=Tahoma,][color=rgb(0, 0, 0)][font=微软雅黑][color=#000000][size=26px]Reverse attenuator, G=-0.1...will it be unstable? [/size][/color][/font][/color][/font][/align][font=Tahoma,] [colo...
I didn't realize it when I just wrote the code. Once the code had a problem, I found out about it. Some parts of Linux did not meet the requirements of Unix, so it could not pass the Unix certificatio...
I want to make an sdio driver under XP. But when IRP_MN_START_DEVICE sends the IRP packet to the sdbus layer, it returns an error message, STATUS_DEVICE_BUSY (code: 80000011). What is the main functio...
GD32L233C-START Development Board Study Notes ( IV )
GD32L23C-START development board demo example
Open GD’s routine and you will feel a sense of familiarity.
int main(void)
{
systick_config();//Confi...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
LED technology has made rapid progress, and improvements in chip design and materials have promoted the development of brighter and more durable light sources, and the scope of light source applica...[Details]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[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]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
Overview
By transmitting ultrasonic energy into the human body and receiving and processing the returning reflected signals, phased array ultrasound systems can generate images of organs and s...[Details]
Embedded System
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