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1. Preparation work 1. Development environment: Keil C integrated development environment 2. Source code: The source code of UCOSII can be downloaded online. 3. Document analysis: 1) Processor-indepe...[Details]
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Compared with the parallel port ISP download cable using a 74LS244, the circuit and principle of this AVRISP are slightly more complicated. But it has advantages: the serial port download perform...[Details]
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"Accelerate the construction of ubiquitous power Internet of Things" and "effectively reduce the burden and pressure on the grassroots frontline". At the beginning of this year, these two seemingly...[Details]
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1 Introduction
Reverse connection of the charger will damage the DS2726 lithium-ion (Li+) battery protector. Because some device pins are very sensitive to negative voltage, the device can...[Details]
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Less than a week after the official release of iOS / iPadOS 14, the hacker team recently announced that it has successfully jailbroken some old devices that support upgrading to iOS 14. The checkra1n...[Details]
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According to Weibo user @数码闲聊站, a vivo tablet equipped with Snapdragon 870 SoC is on the way and is expected to be officially launched in 2022. In addition, more manufacturers will enter the An...[Details]
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In terms of self-developed CPUs, NVIDIA announced the Grace CPU server processor last year, an ARM processor with up to 144 cores. Recently, NVIDIA announced the architecture details and running scor...[Details]
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The four-way valve is an important component of the heat pump air conditioner. Its main function is to use the relative movement between the valve core and the valve body to change the flow directi...[Details]
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Figure 1 (a) shows the average input and output current waveforms of the DCM flyback PFC converter in one switching cycle, and Figure 2 (b) shows the average model of the equivalent circuit of the ...[Details]
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According to news on June 1, Shanghai Honor Smart Technology Development Co., Ltd. was recently registered and established. The company is 100% controlled by Honor Terminal Co., Ltd., with a register...[Details]
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Introduction The VxWorks operating system designed and developed by WindRiver Company in the United States in 1983 is an embedded real-time operating system (RTOS). It is a typical representative of...[Details]
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Today, Apple released an important update for iOS 14, which mainly fixes security issues. It recommends that iPhones that can be upgraded should upgrade as soon as possible. Apple today rele...[Details]
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The history of the development of frequency converters should start with DC motors and AC motors.
DC electric traction and AC motor traction were born in the 19th century, with a history of mor...[Details]
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Preface: 2020 is known as the "first year" of mass production of LiDAR. Since July last year, RS-LiDAR-M1 has received a large number of orders for designated models from automakers, including L3 ...[Details]
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On November 8, Infineon Technologies AG and Marelli, a supplier of mobility technology for the automotive industry, collaborated to develop advanced E/E architecture solutions. The collaboration co...[Details]