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Different USB applications require different endpoint numbers and endpoint data lengths. It is very wasteful to plan a separate storage area for each endpoint.
Therefore, STM32 provides a total of ...[Details]
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According to the latest report from Canalys, shipments of smart speakers, including smart displays, continue to grow. In the third quarter of 2019, shipments of smart speakers grew to 28.6 million un...[Details]
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LM3886 is a new high-fidelity, high-power music IC with overvoltage and over-temperature protection from National Semiconductor. Its peripheral circuit is simple and easy to make. Its performance i...[Details]
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1. Circuit board design steps Generally speaking, the most basic process of designing a circuit board can be divided into three steps. (1). Design of circuit schematic: The design of circuit...[Details]
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Interrupt diagram in ARM7:
The peripherals include common peripherals and internal peripherals. The interrupts are all through VIC, and then act on the kernel through FIQ or IRQ.
I...[Details]
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The non-woven fabric dry lint tester is also called a twist tester. This equipment is used to evaluate the lint test of non-woven fabrics under dry conditions. It is mainly applicable to the evaluati...[Details]
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According to foreign media reports, two new Xiaomi phones have recently passed the EEC certification, one of which is the Xiaomi 10 phone, which also confirms that Xiaomi 10 will be launched in the E...[Details]
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For Apple, if it wants to attract more users to Apple Pay in China, it is very necessary to connect to Alipay or WeChat Pay. According to the latest report from foreign media, it is expected that a...[Details]
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According to Semiwiki, Wave Computing is closing down. The report pointed out that the company has reportedly let all employees go and filed for Chapter 11. However, according to industry insiders, W...[Details]
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Quartz crystal oscillator is called "crystal oscillator" for short. It is widely used in electronic clocks, intercoms, single-chip microcomputers, color TV display line field oscillation frequency d...[Details]
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Even before the threat of terrorism became a major concern, many public and private organizations began installing video security systems in critical infrastructure. Video security provides the vis...[Details]
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1. What is the minimum system? The minimum circuit that allows the microcontroller to work normally is called the minimum system. 2. What circuits does the minimum system contain? ① Power supply circ...[Details]
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Source: Micron Technology
1966 was a long time ago. The Beatles released a new album, Revolver, and the classic Western movie
The Good/The Bad/The Ugly" was released.
Tha...[Details]
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1 Introduction This topic comes from Beijing Puji General Company. Since the company's existing stand-alone spectroscopic instruments (such as 1810 and T6, etc.) use parallel port printing technolog...[Details]
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In the design of digital systems, the FPGA+ARM system architecture has been used more and more widely. FPGA mainly realizes high-speed data processing; ARM mainly realizes system process control, h...[Details]
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