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u8 KEY_Scan(u8 mode)
{
static u8 key_up=1;//button press and release flag
if(mode)key_up=1; //Support continuous pressing
if(key_up&&(KEY0==0||KEY1==0||KEY2==0||KEY3==1))
{
delay_ms(10); //de...[Details]
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1 Introduction
Large power electronic equipment, such as high-power and high-voltage inverters, often require extremely high reliability. The main form of failure affecting power electronic eq...[Details]
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Recently, Neuralink, a brain-computer interface company owned by technology "madman" Musk, held a press conference. At the press conference, the Neuralink device that can be implanted in the brain an...[Details]
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Swiss scientists have carried out computational studies of two-dimensional materials like graphene to determine which would make the best transistors. From a pool of 100 candidate compounds, 13 sho...[Details]
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The Northwest region is an important new energy base in my country and an important clean energy export base. In 2023, the national new energy power generation will be 1.47 trillion kWh, of which near...[Details]
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Linux kernel minimum system, using kernel version:
1. Basic hardware of FL2440 board: crystal oscillator 12MHZ
CPU
Model: S3C2440, based on ARM920T, instructi...[Details]
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This pocket oscilloscope is composed of STC12C5A50S2 and NOKIA1100 LCD screen. Function: It can measure dual-channel waveforms, the sampling rate ranges from 75KHz to 15Hz, and the input voltage ...[Details]
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What is the role of trigger adjustment on an oscilloscope? When the trigger is not adjusted properly, the displayed waveform will be unstable. The so-called unstable waveform means that the waveform c...[Details]
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PLC is a small industrial computer. When it has a problem, we must first rule out whether it is a problem with the PLC itself or a peripheral problem. If there is a problem with the PLC itself, the...[Details]
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Engineers designing point-of-load systems for industrial, networking/communications, and the latest consumer applications must constantly ensure that there are many trade-offs in the design. Weighi...[Details]
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In test and measurement work, we often need to describe all periodic signals. In this case, we will use amplitude and phase. Then the phase change of the signal must be calculated when the signal pas...[Details]
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The hot sales of Apple AirPods have driven TWS headphones to become popular all over the world, followed by traditional headphone manufacturers and terminal mobile phone brand manufacturers such as S...[Details]
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No peak is detected after injection of gas chromatograph, and only a straight line is drawn for the baseline. Note: When you find that no peak is produced during injection, you should first consider ...[Details]
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An oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing ...[Details]
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LLC resonant topology Zhenhua's gold-medal power supplies basically all adopt this architecture. Everyone knows the power of the gold medal, and it is the standard configuration of truly high-end ...[Details]
Microcontroller MCU
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