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Please note that the Linux application layer uses files to read and write character devices, so our driver also uses files. We need to encapsulate all drivers into the read and write form of files. 1...[Details]
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Observing bit 31 of the DR register to confirm whether the conversion is completed is a query method. If the conversion is not completed, the program will stop at the statement being checked and cann...[Details]
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On the evening of December 10, smartphone brand OPPO held a new product launch conference and officially released the Reno5 series mobile phone, the first to be equipped with OPPO FDF full-dime...[Details]
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On January 18, according to GSMArena, Italian retailers such as Zanetti Shop and Epto exposed the price of Samsung Galaxy S22+, which was priced at 1,190 euros (about 8,600 yuan). GSMArena po...[Details]
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PIC microcontrollers play an important role in both study and work. In previous articles, the editor has introduced the assembly instructions of PIC microcontrollers to help everyone better master PI...[Details]
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Before the FLUKE DSX2-5000 and DSX2-8000 cable testers are put on the market, they will undergo a series of environmental tests! Including vibration test, high temperature test, low temperature test,...[Details]
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Speaking of home projectors, traditional mercury lamps have occupied most of the market for many years. In recent years, in addition to the original traditional mercury lamps, many products have also...[Details]
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1. Code process 1.1 Serial port code The program flow chart is as follows; The code executed by default_serial_console is as follows: There is the following definition in JZ2440.H: ...[Details]
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On the morning of May 27, Jiangxi Far East Battery Co., Ltd. held a European household energy storage product shipment ceremony in front of the Science and Technology Building. Jiangxi Far East Bat...[Details]
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Analysis of the working principle of 74HC595 chip Method Description Summary: (1) If you want to learn a new chip, you need to look at eight places, which are the eight steps. 1. Chip Overview 2. Ele...[Details]
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I am about to find a job, so I reviewed the relevant knowledge and looked at the written test questions of embedded C. Overall, I feel that the test questions are quite interesting. The test points ar...[Details]
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Buttons are relatively complex and can be represented by a state machine.
Execute a keyboard scan task every 10mS
0, no key, if there is a key, enter state 1
1. The first time a key is detected, ...[Details]
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There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The fir...[Details]
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1. The concept of interruption When the CPU is processing an event A, another event B occurs, requiring the CPU to process it quickly (an interrupt is generated); The CPU temporarily interrupts the c...[Details]
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~ Helping improve the efficiency of vehicle-mounted electric compressors and industrial equipment inverters~
ROHM (headquartered in Kyoto, Japan), a world-renowned semiconductor manufa...[Details]
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