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Editor: This driver is quite complex, so let's port it first and analyze it later.
SD card driver transplantation
1 Register SD device driver in the kernel
Linux-2.6.32.2 already come...[Details]
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The 20th century had the most inventions, and it is no exaggeration to say that it is one of the greatest inventions of the 20th century. Compared with oil lamps and incandescent lamps,
LED l...[Details]
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The 2020 Annual Report on the Transformation of Scientific and Technological Achievements in China (Universities and Research Institutes) (hereinafter referred to as the "Report") was released on the...[Details]
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Controller Area Network (CAN) is a fieldbus with international standards and high cost performance. CAN was first introduced by Bosch in 1986 and is a multi-host local network originally used for c...[Details]
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The following operations are performed using the super user under Fedora. I have installed the x86 and arm versions of the cross-compiler arm-linux-gcc 4.3.3 and qt4.5 in the directory /opt/EmbedSky....[Details]
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The judgment of transistor pins is actually the basic knowledge of electronics, but I believe many friends have forgotten how to judge. We all know that transistors are composed of a core, three elec...[Details]
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1. ARM7 is a von Neumann structure, and ARM9 is a Harvard structure. The so-called von Neumann structure and Harvard structure mean that the von Neumann structure program (instructions) and data are s...[Details]
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The LPC11C14 (Cortex-M0) microcontroller uses the NVIC (Nested Vectored Interrupt Controller) interrupt controller The NVIC interrupt controller has the following features: NVIC is an integrated ...[Details]
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Although LED high-definition display screens are monochromatic, each color LED still has a half-wave width of about 30~50nm, so its color saturation is limited. The colorful nature is so beautiful...[Details]
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What does digital audio for headphones mean?
Headphone digital audio refers to the use of digital signals for audio transmission and processing, which can provide higher sound quality and more...[Details]
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It has been a month since ZTE's first 5G mobile phone was launched on August 6. During this period, Huawei and vivo also launched their first 5G mobile phones. Samsung will also launch the Note 10+ 5...[Details]
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According to Ebrun, Xinhe Semiconductor has completed its A+ round of financing, with investors including Oriza Puhua, Qianhai Seed Fund, and Qianhai Ark Asset. It is reported that Xinhe Semiconduct...[Details]
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The circuit is shown in the figure. Its core device IC1 is TOP221 , a three-terminal high-voltage switch integrated circuit, which integrates a voltage-type pulse width modulation oscillator, a ref...[Details]
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By Geoff Schulteis of Antenova When the product is wireless and requires an additional antenna, the design cycle is different. The antenna changes the design process because it must be carefully pl...[Details]
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Compared with Class AB amplifiers, Class D amplifiers have better efficiency and thermal performance, but implementing a Class D amplifier still requires attention to good electrical design and therma...[Details]