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In the ARM system, the memory unit MMU mainly completes the following tasks: (1) Mapping of virtual storage space to physical storage space; ARM uses page-based virtual storage management, dividing t...[Details]
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General timer (the following takes general timer 3, channel 3 as an example): Step 1: Enable the clock RCC- APB1ENR: 1 bit //Turn on timer 3 clock enable Step 2: Set the timer frequency division and ...[Details]
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In any
switching power supply
design, the physical design of the PCB board is the last step. If the design method is not appropriate, the PCB may radiate too much electromagnetic interferen...[Details]
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On January 26, SVOLT Energy's 325Ah short blade liquid-cooled energy storage container began to be delivered in batches. The container uses SVOLT Energy's self-developed 325Ah flying short blade en...[Details]
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Operators see enterprise and industrial Internet as growth engines In the previous article "Digital Transformation Demand Creates New Space in the Core Network Market", Yang Guang, Director of Wi...[Details]
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Text/Duoyu
Today, China's manufacturing industry is entering a critical juncture of transformation and upgrading, which has also brought a new transformation opportunity to the old industr...[Details]
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It can sense the surrounding temperature through the temperature sensing element DS18B20, and then display the current temperature through the digital tube. it looks like this Currently I am indo...[Details]
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In order to realize human-computer interaction, a display device is indispensable. In the previous section, we talked about how to use a single-chip microcomputer to control the display of a digital ...[Details]
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In recent months, there have been a number of worrying reports of Airbnb hosts installing hidden cameras in their properties without disclosing them to guests. Back in January, CNN reported on a C...[Details]
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Chip analysis method:
1 C-SAM (scanning ultrasonic microscope), non-destructive inspection: (1) Crystalline structure, impurity particles, inclusions, and sediments inside the material. (2) Inter...[Details]
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1 Introduction Embedded systems consist of embedded hardware and embedded software that is fixed in the hardware platform. In traditional small-scale embedded systems, software mostly adopts the fore...[Details]
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How LEDs Work
To design a drive circuit, we must first understand its working principle. The brightness of an LED is mainly related to VF and IF. The volt-ampere characteristics of an LED are sho...[Details]
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PIC microcontrollers have multiple interrupt sources. The 16 series has only one interrupt entry, and the 18 series has two interrupt entries. The writing format is slightly different under different...[Details]
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#include reg52.h typedef unsigned int u16; typedef unsigned char u8; //Bit definition sbit led=P2^0; sbit K1=P3^1; sbit beep=P1^5; sbit LSA=P2^2; sbit LSB=P2^3; sbit LSC=P2^4; //Global variab...[Details]
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A zero-flux Hall current sensor is designed, which can be widely used in AC variable frequency drive, welding power supply, switching power supply, uninterruptible power supply and other fields. Th...[Details]
Analog electronics
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