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Ethernet is a family of frame-based computer networking technologies used in local area networks (LANs). By analyzing Ethernet traffic at the physical and protocol layers, you can understand the oper...[Details]
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I/O port comprehensive practice project 1) Each key of the matrix keyboard is encoded with a key value code (1~16); 2) The single chip converts the corresponding key value code into a dig...[Details]
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Provides efficient power management for high operating voltage systems in portable handheld devices Beijing, China, October 31, 2023 – Littelfuse Corporation is an industrial technology manufact...[Details]
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In electronic engineering, resource exploration, instrumentation and other related applications, frequency measurement is one of the most basic and common measurements in electronic measurement tec...[Details]
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On January 9, 2023, Shuangyili (Ningbo) Battery Co., Ltd. (hereinafter referred to as "Ningbo Shuangyili") and Xiamen Haichen Energy Storage Technology Co., Ltd. (hereinafter referred to as "Haiche...[Details]
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According to Jiwei.com on October 21, Nut R2 has been released. The 8GB+128GB version is priced at 4,499 yuan, the 8GB+256GB version is priced at 4,799 yuan, the 12GB+256GB version is priced at 5,299...[Details]
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Pinglu Energy Storage Station, Guangxi's first large-capacity independent shared energy storage power station, recently participated in market transactions at the Guangxi Power Trading Center, marking...[Details]
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The circuit shown in Figure 12.9.1 can be used to listen to the radio, enjoy music, and bring good news to insomniacs. When receiving the radio, it has a high sensitivity and selectivity. If it is pl...[Details]
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Overtone Response of a Quartz Resonator
The figure above shows the modal spectrum of a quartz resonator, including the fundamental mode, the third-order overtone, the fifth-orde...[Details]
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What has chip manufacturing gone through to achieve smaller, faster and more energy-efficient?
Every few months, a new generation of electronic products is released. They...[Details]
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Texas Instruments (TI), the world's leading analog chip company, recently issued a price increase notice stating that due to the continued rise in upstream raw materials in the recent, present and fo...[Details]
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#include
#include delay.h
#define No_key 255
#define K1_11
#define K1_22
#define K1_33
#define K1_4 4
#define K2_15
#define K2_26
#define K2_37
#define K2_4 8
#define K3_19
#define K3_...[Details]
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We all know that the SPI in STM32 has four lines, namely MISO, MOSI, NSS, SCK MISO and MOSI are bidirectional data lines, and SCK is the clock line. Let's introduce what NSS does. In the standard SPI...[Details]
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In the 8051 system, the data pointer DPTR is a special 16-bit register used to address the 64 KB XDATA or CODE space. It is usually used as a 16-bit pointer to a constant table. Dual data pointers ...[Details]
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1. The data area has a small space, so only variables that are frequently used or require high computing speed are placed in the data area, such as the count value in the for loop.
2. It is be...[Details]
PCB Design
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