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Common problems with using switching power supplies (DC switching power supplies) Because we often design RF or low-frequency analog circuits, switching power supplies are rarely used in designs. H...[Details]
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Use timer T0 to generate PWM square wave, Use the button to adjust the duty cycle, 20 levels adjustable Control the brightness level of LED lights. C Code #include "my51.h" #include "time...[Details]
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introduction
Frequency synthesis technology was established in the late 1930s. So far, it has a history of nearly 70 years. Frequency synthesizers have become an indispensable standard compone...[Details]
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Data processing instructions can be divided into data transfer instructions, arithmetic and logic operation instructions, and comparison instructions.
Data transfer instructions are used to transfer ...[Details]
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Regarding the stack allocation of s3c2440, it is mainly about the corresponding stack base address in various ARM modes. The tasks of uCOS use their own task stacks. If an interrupt occurs during task...[Details]
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The "October 2020 Domestic Mobile Phone Market Report" released today by the China Academy of Information and Communications Technology shows that in October, the total shipments of the domestic mobi...[Details]
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Qingke Information’s latest whole-house smart system product “Smart Home Elf” and MXMESH solution can help B-end manufacturers achieve private deployment and help C-end users achieve local linkage an...[Details]
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Question: When using the dual-tracer (dual-channel) oscilloscope in the Multisim software to detect AC signals, the AC signal waveforms obtained when DC coupled input and AC coupled input are select...[Details]
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Fingerprint access control replaces traditional keys with fingers. When using it, you only need to place your finger flat on the collection window of the fingerprint collector to complete the unlo...[Details]
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The AD part mainly configures the clock, reference source, sampling channel, sampling mode, storage and sample-and-hold of the ADC12 module. I'll take it one part at a time. The fi...[Details]
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1) All addresses accessed through the MMU page table are called virtual addresses. Once the MMU is enabled, all addresses iss...[Details]
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Preface
Currently, the world is facing severe environmental problems and energy is becoming increasingly scarce. Solar energy has become the preferred alternative energy source because of ...[Details]
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On November 20-21, the "2019 China Safety Industry Conference and the 3rd Traffic Safety Industry Summit" hosted by Cheyun.com and co-organized by Electric State was held in Foshan City, Guangdong Pr...[Details]
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/************************************************************************/ // Eight-way voltmeter C program /************************************************************************/ /*Use AT89C52...[Details]
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According to news on February 4, Funeng Technology recently stated in a survey by the reception organization that the company’s sodium battery products will have been installed on vehicles by the end...[Details]
MCU
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