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1. In STM32, there are five clock sources: HSI, HSE, LSI, LSE, and PLL. ①HSI is a high-speed internal clock, RC oscillator, with a frequency of 8MHz. ②HSE is a high-speed external clock that can be c...[Details]
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The Apple Store serving Bordeaux, France, may undergo a renovation of its interior, and the store's reopening may coincide with the store's 10th anniversary. The Apple Store in Sainte-Catherine is ...[Details]
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introduction
Track plotter (hereinafter referred to as track plotter) is a very important navigation equipment, which is used to automatically calculate the position of the ship and automatica...[Details]
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1.#i nclude<> means to go to the editor setting directory, #i nclude "" means to go to the current project directory.
2. To call a function in another file, put the function file in the current proje...[Details]
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1. Unzip, compile and install busybox-1.20.0.tar.bz2 (1) Unzip: tar xjf busybox-1.20.0.tar.bz2 Enter the directory: cd busybox-1.20.0 cd busybox-1.20.0 Configuration: make menuconfig (2) Then spe...[Details]
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According to foreign media reports, in late May, Samsung will release its latest A series smartphone, model Galaxy A41, in the Netherlands. Compared to the Galaxy A40 released in 2019, this...[Details]
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The high-voltage switch tester prompts "Output short circuit or overload, please turn off the machine to check the control wiring" Problem analysis:
(1) The control wiring is wrong, causing the ins...[Details]
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To achieve precise delay using the system tick timer, the following five steps are required: 1. Set the tick timer clock by setting its control register and selecting the external clock, which is one...[Details]
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In our daily life, the use of electricity is normal. It was not until there was a sudden power outage one day that we realized the importance of electricity and began to care about us, the power pe...[Details]
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The "Eight-Point Method" proposed by Guangxi Unicom is a 3G traffic management support solution. Through PS domain signaling mining, it accurately locates 3G traffic management from eight dimensions,...[Details]
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I only bought a development board but it didn't have an LCD. I was so poor that I had to use a VGA monitor instead. The documentation didn't tell me how to support VGA, so I had to look it up online....[Details]
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This article specifically introduces 22 common concepts about ARM. 1. Explanation of some common English abbreviations in ARM MSB: most significant bit; LSB: least significant bit; AH...[Details]
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Abstract: This paper briefly introduces the principle of rectifier space vector PWM (SVPWM) control, compares the harmonic content and switching loss of several SVPWM waves, and gives the implement...[Details]
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1 Introduction 1.1 Design Purpose Single-chip microcomputers have the characteristics of high cost performance, high integration, good reliability, and strong anti-interference, and are widely used i...[Details]
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DCM discontinuous mode : a triangular wave in which the current starts to rise from zero. CCM continuous mode : a side trapezoidal wave in which the current rises from a non-zero value. DCM mode ...[Details]