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Beijing Business Daily reporter confirmed with Ericsson that due to complaints from related enterprises about Ericsson's intellectual property licensing business in China, the State Administration fo...[Details]
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Behind every new trend lies unspeakable opportunities and anxieties. In 2007, Kingsoft Software was finally listed on the Hong Kong Stock Exchange 20 years after its founding. Lei Jun, the helmsman, ...[Details]
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The PIC12F508/509 microcontroller is simpler than the ordinary 51 microcontroller. If you have a basic understanding of 51 microcontrollers, you can directly read the data sheet and go deeper. As f...[Details]
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//4x4 matrix keyboard scanning routine (C51) //Use the LED on the P0 port to display the key value obtained by scanning the 4x4 keyboard // //Li Yingchao, School of Physics and Electronic Engineering...[Details]
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Introduction to ST7789 ST7789/ST7789V/ST7789H2, used to drive 262K color TFT-LCD in single chip, including 720 (240*3 colors) x 320 lines output, can be directly connected to external controller v...[Details]
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SRCPND EQU 0X4A000000
INTMSK EQU 0X4A000008
INTPND EQU 0X4A000010
EINTMASK EQU 0X560000A4
EINTPEND EQU 0X560000A8
EXTINT1 EQU 0X5600008C
EXTINT2 EQU 0X56000090
INTMOD EQU 0X4A0...[Details]
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The voltage-controlled switching power supply will lose control of the switching current, which is not convenient for overcurrent protection, and has slow response and poor stability. In contrast, ...[Details]
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On May 7, the well-known blogger @数码闲聊站 revealed the latest news that new SM8475 (Snapdragon 8 Plus) phones from multiple manufacturers will be launched in the third quarter of this year. It...[Details]
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Solid-state batteries are generally considered to be the ultimate form of liquid batteries. The positive and negative electrode materials of solid-state batteries and liquid batteries are mostly the ...[Details]
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This basic RF oscillator circuit is easy to build and the components are not critical. Most of them can be found in your junk parts box. The circuit is powered by a 9VDC power supply.
Th...[Details]
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Fixed output integrated voltage regulators such as the 78×× series can easily increase the output voltage V0 (see the figure below) by simply connecting two external resistors. The output voltage expr...[Details]
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Capacitors are one of the basic components in electronic circuits and have important and extensive uses. According to the application classification, most capacitors are often divided into four ty...[Details]
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An electric iron is an object with a large thermal inertia. If the iron is already in a stable high temperature state, interrupting the power supply for a few seconds and then supplying full voltage ...[Details]
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There are hundreds of types of digital multimeters. According to the range conversion method, they can be divided into manual range digital multimeters, automatic range digital multimeters and autom...[Details]
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1 Introduction
The use of hardware description language combined with programmable logic devices (PLD) can greatly facilitate the design of digital integrated circuits. This paper introduc...[Details]