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On September 2,
the
Robotics
Technology Application Innovation Forum and the 4th Yangtze River Delta Robotics Industry Innovation Conference were successfully held in Shanghai during the...[Details]
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The structure and working principle of thyristor
A P1N1P2N2 four-layer three-terminal device based on silicon single crystal was created in 1957. Because its characteristics are...[Details]
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Why is it called burning?
In the early days, the debugged
single-chip
program was generally written into ROM and EPROM. This operation was like burning a CD. It was actually writ...[Details]
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Today a customer asked us what capacitive reactance is and how to measure the size of safety capacitive reactance. In fact, measuring the size of capacitive reactance is very simple and can be measur...[Details]
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1. Charge/discharge capacitance measurement circuit
The basic principle of the charge/discharge capacitance measurement circuit is shown in Figure 1.
The unknown capacitance Cx is c...[Details]
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Many people often encounter adr and ldr instructions when writing simple bare metal code or analyzing uboot. But they can't tell the difference between the two. Now let's talk about adr and ldr instr...[Details]
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The following content is in stm32f4xx_gpio.h /** @defgroup GPIO_Alternat_function_selection_define * @{ */ /** * @brief AF 0 selection */ #define GPIO_AF_RTC_50Hz ((uint8_t)0x00)...[Details]
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Large
LED display screens
have become a new force in the media
Walking in the streets of the city's bustling business districts and major business districts, have you noti...[Details]
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On the morning of May 7th, Beijing time, market research firm IDC released a semiconductor application forecast report. Although the new crown has swept the world, global semiconductor sales in 2020 ...[Details]
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Recently, the SNEC 12th (2018) International Solar Photovoltaic and Smart Energy (Shanghai) Exhibition and Forum was held in Shanghai. Industry insiders from government departments, entrepreneurs, sch...[Details]
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Initialize systick when the system is initialized void SysTickConfig(void) { /* Set SysTick Timer for 100us interrupts */ if (SysTick_Config(SystemCoreClock / 10000)) { /* Capture error...[Details]
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Preface Compared with the 51 MCU, the 52 MCU has a larger internal storage and an additional T2 timer/counter. 1. Brief description of timer 2 1. Function of Timer 2 Timer 2 is a 16-bit time...[Details]
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The 0~100 mV precision voltage source is an indispensable excitation signal source for the regular inspection of important control systems such as aircraft engine temperature control boxes. The des...[Details]
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Apple unveiled the “Car Key Digital Car Key” feature at the WWDC 2020 Global Developers Conference and revealed that BMW cars will be the first to support this feature. After the Apple conference,...[Details]
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The on-state of mode C is shown in Figure 4(a): switch S1 is closed, switch S2 and diodes D1 and D2 are not conducting. In this case, the inductor currents iL and iLO increase, and i1=iL. The off-sta...[Details]
Microcontroller MCU
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