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Early this morning, Apple pushed iOS/iPadOS 14.4 to all devices that support upgrading to iOS/iPadOS 14. In addition to the new features that have been seen in the official beta version, iOS/iPadOS ...[Details]
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1.NRST foot The NRST pin generates a reset. When NRST is low, the MCU is in reset state and all internal registers are reset. 2.SWIM feet The SWIM pin is an open-drain (OD) structure to achieve bid...[Details]
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Open .vscodec_cpp_properties.json Add content “__CC_ARM”, “__STATIC_INLINE=static” Finished product: { "configurations": , "defines": } ], "version": 4 } Seco...[Details]
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1. Cortex-M3 memory map The first 1GB of the storage area is divided into code area and SRAM area. The code area is connected using the optimized I-Code bus. Similarly, the SRAM area is connected u...[Details]
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This month, some Huawei products passed the national 3C quality certification. For example, this new 4G phone with model number MGA-AL00 supports up to 22.5W wired charging. Currently, the onl...[Details]
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According to the needs of the country to build a strong civil aviation country, the domestic demand for aircraft simulators is increasing, but the current scale of domestic simulator development ca...[Details]
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Integrated circuits are made of silicon, which is an electronic-grade high-purity silicon ingot obtained by purifying sand. After cutting, the wafer is obtained, and then it goes through many steps...[Details]
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The MAX5111 is a 14-bit, 9-channel, current-output digital-to-analog converter (DAC). The device operates from a low +3.0 V supply voltage and provides 14-bit performance without any adjustments.
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Instructions: (1) Insert the oscilloscope probe into the channel 1 jack and set the attenuation on the probe to "1"; (2) Set the channel selection to CH1 and the coupling mode to DC; (3) Insert t...[Details]
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At present, with the development of science and technology, the test requirements for technical indicators such as accuracy and stability of time and frequency measurement are getting higher and hi...[Details]
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【Introduction: Facing the severe challenges brought by the COVID-19 epidemic, technology is our most powerful weapon to fight against it. Various innovative technologies are being accelerated into ke...[Details]
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The global consumer electronics industry trendsetter - the US International Consumer Electronics Show (CES2013) will be grandly opened in Las Vegas on January 8, US time. This year's CES2013 will be ...[Details]
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With the development of technology, high-power and high-current DC power supplies are required in many occasions. The DC fast-controlled power supply used in the magnetic confinement nuclear fusion d...[Details]
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UART Programming
1. Initialization
Our 2440 supports 3 UART serial ports, taking uart0 as an example. Then we need to implement the following functions to complete the most basi...[Details]
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The inverter is an electrical device that converts AC power into AC power with adjustable frequency. It is widely used in industrial automation, motor drive and other fields. In practical applicati...[Details]
RF/Wirelessly
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