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In 2020, research firm IDC announced the market share of smartphones in China priced above US$600 (approximately RMB 4,000) in the first half of the year. Huawei ranked first with a share of 44.1%, f...[Details]
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At the end of the U-Boot-2009-03 porting notes, we found the U-boot startup code in cpu/arm920t/start.S, which is a piece of assembly code. Our porting work starts here.
We locate the re...[Details]
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1 Introduction
With the development of science and technology, ARM is increasingly used in all aspects of society. ARM chips are widely used in wireless products, PDAs, GPS, networks, consumer...[Details]
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As the "raw material" of chip design, IP is the core and key link in the upstream of the chip design industry chain. Like EDA and lithography machines, IP is one of the key technologies that are "stu...[Details]
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The adaptive pulse code modulation method changes the digital quantity according to the conversion rate of the voice analog signal, that is, in the pulse code modulation method, the quantization am...[Details]
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1. What is PWM?
PWM (Pulse Width Modulation) is simply a frequency conversion technology that controls the output voltage by changing the pulse width and controls the output frequency by changing ...[Details]
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This article introduces the main features, block diagram and typical application circuit of LTCR3589. Linear's LTCR3589 is an eight-output power regulator with timing and I2C, which is a complete powe...[Details]
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On June 5, Jiaojiang District of Taizhou City, Zhejiang Province signed 10 projects covering new energy, digital chip intelligent manufacturing and other aspects, with an investment amount of 7.97 bi...[Details]
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In engineering, nondestructive testing (NDT) is often used to detect defects in equipment and components. Traditional NDT methods include ultrasound, eddy current, magnetic powder, coloring, etc. How...[Details]
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WPG Group launches security monitoring solution based on NOVATEK and SmartSens products
On March 22, 2023, WPG Holdings, a leading semiconductor component distributor dedicated to th...[Details]
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A very simple simulation of an AVR microcontroller, using a 74hc595 chip to drive a single digital tube to display numbers. The following is the simulation schematic diagram Source program: #incl...[Details]
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At present, many people focus
on the
number
of
LED
lumens
, but pay less attention to
the heat dissipation of
LED lamps
. In fact, the number of LED lumens is increasing rapidly. In 20...[Details]
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1.4.1 LCD driver basics The Linux-2.6.32.2 kernel already supports the S3C2440 LCD controller driver, but here we first introduce some basic knowledge about the 2440 LCD controller and driver-relat...[Details]
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Yesterday, China Unicom officially announced the final prices of six 5G mobile phones and one 5G CPE. Each phone is expensive. These include six 5G mobile phones such as Huawei Mate 20 X 5G, ZTE Axon...[Details]
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CAN bus (Controller Area Network) is a communication protocol used in the automotive and industrial fields, which allows multiple devices to communicate on the same network. In some cases, it may b...[Details]
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