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]
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]
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]
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]
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]
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]
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]
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]
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]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[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]