I use 2440+Wince5.0, and found that the system time is reset to January 1, 2049 every time the system is started. It cannot connect to the PC, and the system is very slow. Please explain it to me if y...
I'm porting the ucos-ii code on atmega128, and I feel that there is a section of address setting in the OS_CPU_S.S code as follows:
SREG=0X3FTCNT2=0X24SPL=0X3DSPH=0X3E
The program is error-free after ...
An official routine was imported, and the program is as follows: [code]#include "mbed.h" AnalogIn analog_value(A0); DigitalOut myled(LED1); // Calculate the corresponding acquisition measure for a giv...
[size=5][font=新宋体] 1. Why are the car remote controls and the roller shutter door remote controls at home so sensitive and responsive no matter how you press them? 2. We designed a board ourselves, bo...
The following is a function in the ST OTG library. I don’t know what the two lines in red are doing.USB_OTG_Status USB_OTG_CoreInitDev (USB_OTG_CORE_DEVICE *pdev){USB_OTG_Status status = USB_OTG_OK;US...
Regarding the operation of GPIO, the moderator of the previous post has explained it very clearly. For details, please see the post: Questions about the GPIO operation of STM32 . What I want to ask in...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[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]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[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]
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]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]