1. Overview
With the rapid development of communication technology, people have put forward higher requirements for the services provided by mobile networks. GPRS (General Packet Radio Service) is a w...
This article introduces how to configure the Qt runtime environment on an embedded Linux development board and perform a Qt program run test.
1 tslib compilation
tslib has been used before when testin...
Learn and win awards at the same timeLet’s keep it simple and get straight to the point!Event time: From now until October 31, 2019Activity process:
1. Open theBuild a healthy life, achieve powerful t...
[size=4]When the frequency is constant, the larger the capacitance, the smaller the capacitive reactance; the smaller the capacitive reactance, the lower the frequency that passes. [/size] [size=4]The...
In the past few years, the craze for smart wearables has faded by half. After repeated market baptism, some popular wearable device manufacturers have ended up bankrupt or acquired, but there are also...
Last year, Samsung released the Galaxy Fold, the company's first foldable smartphone. Now, Max Weinbach of XDA Developers has revealed that Samsung is working on three new foldable phones at the same...[Details]
Summary: 1. Different control chips may have different LCD interface definitions or register definitions. 2. There are two display modes: parallel and serial. It is said that the serial mode cannot r...[Details]
uPC is an 8-bit preset counter composed of two 74HC161 chips. The preset data comes from IBUS. The upper six bits of instruction IBUS are connected to the upper six bits of uPC preset, and the lower ...[Details]
Noise is a common problem that occurs everywhere. Almost everyone who works with circuits has to deal with it at some point, either by finding its source and fixing it, or by reducing its effect on m...[Details]
Jiwei.com reported on April 28 that according to the latest report from Counterpoint, the European smartphone market is recovering, and the strong momentum in the fourth quarter of 2020 has continued...[Details]
The 52 chip has one more timer than the 51. So I also read a lot of information on the Internet, many of which could not run. After making some modifications, I finally realized the simulation test o...[Details]
When I first learned about the 51 microcontroller, there were always many questions about the crystal oscillator. In fact, the crystal oscillator is like the human heart, which is the blood and pulse...[Details]
Thanks to the enthusiastic clues from IT Home netizens, the Chinese version of the Samsung Galaxy Note10 series has now pushed the official version of One UI 3.0. As usual, Note10 series interna...[Details]
1.1 ARM processor series
Each ARM processor has a specific instruction set architecture (ISA), and a version of the ISA can be implemented by multiple processors. The ISA has evolved with the needs o...[Details]
STM32 reset can be divided into three types: system reset, power reset, and backup domain reset.
System reset:
After a system reset occurs, all register values are set to their reset values, exce...[Details]
Based on IAR STM8 2.10 development environment, STM8S005K6 microcontroller, simulate IIC mode to read and write AT24C16 or AT24C32, it has been verified that AT24C32 can read and write data normally,...[Details]
Virtual power plants without factories or smoke have gone from concept to reality. Recently, Zhejiang Province organized the first virtual power plant to participate in the peak shifting of the power ...[Details]
Impedance mismatch can cause signal reflections, which is an undesirable phenomenon in high-frequency test systems. For AC signals, any change in the dielectric constant between materials will lead t...[Details]
The figure shows an application circuit that uses a 317 three-terminal adjustable positive integrated voltage regulator to form an adjustable output voltage of 0~30V. When R2 is zero, the output volt...[Details]
The PT100 temperature sensor is a temperature measurement device widely used in the industrial field. Its working principle is based on the characteristics of platinum resistance changing with temp...[Details]