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From November 19th to 21st, China Mobile's Global Partner Conference, which has been held for eight consecutive years, opened as scheduled. In the past year, the construction of 5G networks has conti...[Details]

I recently wrote an STM32 serial port program that uses a circular buffer to send data: use the head pointer (front) to point to the next data to be sent, and use the tail pointer (rear) to point to ...[Details]

(I) Discrimination of transistor materials and polarity 1. Identify the material and polarity of the transistor from the model name. The second part of the domestic transistor model name uses ...[Details]

Refrigerators are one of the essential household appliances. In the home appliance market, refrigerator sellers have done a lot of publicity campaigns such as "energy saving and freshness preservat...[Details]

FAN9612 uses Fairchild Semiconductor's Sync-Lock technology, which can accurately maintain a 180° phase difference between the two phases and instantly synchronize and lock the frequenc...[Details]

Currently, Gionee’s official WeChat public account (hereinafter referred to as Gionee) has published an article revealing the sales status of the brand’s products. Gionee said that its M11/M11S has...[Details]

“If you think you have it all figured out, you’re not going fast enough.” — Mario Andretti Over the years, automobile manufacturers have been challenged by the need for more power. In ...[Details]

The file system yaffs is an embedded file system specially designed for NAND Flash . Although some functions are reduced, it is faster than JFFS and takes up less memory. Generally speaking, the JF...[Details]

　　The multimeter is one of the most common instruments. It can measure electrical quantities such as AC voltage, DC voltage, DC current and resistance. Although the accuracy of the multimeter is low,...[Details]

On April 19, the Hainan Provincial Government and Yingli Group, China's largest photovoltaic manufacturer with a complete industrial chain, signed a cooperation framework agreement at the Haikou Ind...[Details]

Recently, Zeng Yuqun, chairman of CATL, once again sparked discussions about cobalt-free batteries by saying that "cobalt-free batteries are being developed". It has also been reported that Tesla pla...[Details]

180 billion 5G investment capital expenditure accounts for more than 50%   2019 can be regarded as the first year of 5G commercialization in my country: in June, 5G licenses were issued; in October,...[Details]

　　Project: A power supply in a laboratory broke down. After disassembling it, it was found that the full bridge controlled by UC3875 needed to be repaired. 　　Phenomenon: Preliminary inspection shows ...[Details]

The energy density of conventional lithium-ion batteries is approaching the saturation point, so they cannot meet the needs of future applications such as electric vehicles . Compared with lithium-io...[Details]

In the previous section, we have learned a lot about bare metal and built a project to test assembly code. These tasks are actually the basis for learning Bootloader here. Index to this sectio...[Details]