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Although Huawei does not make cars, the tricks it plays and the noise it makes are no less than those that make cars. Following the HI model, smart selection model, and Hongmeng Zhixing, Huawei dec...[Details]
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Abstract DMA as a character device and call it in the initialization function
void *dma_alloc_writecombine(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
...[Details]
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On February 3, the topping-out ceremony of the test complex building of Sanan Optoelectronics Display Industrialization Project (Phase I) located in Gedian, Hubei Province was held. In July 2019, S...[Details]
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In power installation projects, if the RLC series circuit produces parallel resonance, when the series resonance working voltage on both sides of the inductor or capacitor is too high, it will penetr...[Details]
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#include
#include intrins.h
#define uchar unsigned char
#define uint unsigned int
char code SST516 _at_ 0x003b;
uchar code display_P0 ={
0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F,
...[Details]
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In the previous newsletter, we introduced the similarities and differences of OTA test standards of different standard organizations. In this newsletter, MORLAB engineers explain 3GPP/ETSI test...[Details]
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How to produce satisfactory low frequencies with a not-so-large unit? I think the transmission design is the most ideal way. However, due to the complex structure of the speaker, few people try to...[Details]
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The AVR series of microcontrollers have integrated TWI (Two-wire Serial Interface) bus. This bus has the characteristics of I2C bus, that is, simple wiring, external hardware only needs two pull-up...[Details]
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The rapid development of new energy electric vehicles has driven the popularization of charging pile equipment. Now charging piles can be seen everywhere, and car charging is much more convenient t...[Details]
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Both the ohmmeter and the megohmmeter can be used to measure resistance. Multimeter Ohmmeter: 1) When used to measure resistance, the resistance value measured is generally not large; therefore, ...[Details]
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Introduction
This paper describes the application of IEEE1588 in a distributed motion control system. Current solutions rely on ad hoc implementations of time synchronization of distributed ...[Details]
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The internal frequency reference source of SJA1000 is F_BASE = Fclk/2, which is the frequency of the external crystal oscillator Fclk divided by 2. Note that in any application, when using an external...[Details]
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As an international standard fieldbus, PROFIBUS-DP has been widely used in the world for its flexibility, reliability and other advantages. It is a high-performance industrial control network. However...[Details]
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According to news on June 29, the European Union is formulating a series of laws aimed at limiting the power of technology giants, the latest of which is called the "Data Bill." The bill will regulat...[Details]
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China Energy Storage Network:
The electricity sales market is an important part of the electricity market system. Under the goals of carbon peak and carbon neutrality, if the power industry...[Details]
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