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In our common sense, the word technology often has two definitions. The first is the technology sealed in the laboratory. They are like flowers on the mountain top. Only a few people on the mountai...[Details]
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1. Principle 1. Infrared emission protocol There are many infrared communication protocols. This experiment uses the NEC protocol. This protocol uses PWM modulation and uses pulse width to represen...[Details]
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1. Development Environment 1. Applicable chips: All STM32F4 chips 2. Firmware library: STM32F4xx_DSP_StdPeriph_Lib_V1.8.0 3,IDE:MDK517 2. Driver source code Delay.h...[Details]
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Today, under the guidance of a low-level expert, I learned how to configure the PWM module! Woof! First open the file configured last time, as follows: Then, we need to use TIM1 to set PWM: Then,...[Details]
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1. About FPU transplantation As long as the chip has FPU function, the use of FPU is generally enabled by default. You can also select it in the Options tab; 2. About the transplantation of DSP li...[Details]
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There has been a lot of news about Huawei
phones
recently
. At the
Huawei
Global Analyst Conference
on the 17th
,
Huawei
announced that it will launch
5G
phones
in the seco...[Details]
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According to foreign media reports, the 2018 GMC Terrain Denali is equipped with multiple collision detection systems, and a recent test verified the safety of the system. Even when driving in a bu...[Details]
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Superconductors have physical properties such as zero resistance effect, Meissner effect and Josephson effect, which make them have broad application prospects and unparalleled advantages in many b...[Details]
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Different from 51, AVR and other single-chip microcomputers, the clock signal sources of msp430 include LFXT1, XT2 and DCO. 1. LFXT1: It can connect high-speed and low-speed crystal oscillators. In l...[Details]
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The analog watchdog of the ADC is used to check if the voltage is out of bounds. It has two upper and lower bounds, which can be set in the registers ADC_HTR and ADC_LTR respectively. The library fun...[Details]
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Why does MCU have a watchdog? With this question, let's learn about watchdogs. Even the 51 single-chip microcomputer has a watchdog, which shows that this dog has a special meaning to us. The purpose...[Details]
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The first one is a DMA mode of multiple channel acquisition void ADC_DMA_Config(void) { ADC_InitTypeDef ADC_InitStructure; RCC_HSICmd(ENABLE); while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET); ...[Details]
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;Question: The 80C51 single-chip microcomputer has a fosc = 6MHz. It is required to use the T1 timer working mode 1 to perform a timing of 40ms. And P1.7 periodically outputs a rectangular wave with ...[Details]
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In the packaging process of a production line, every time the conveyor belt of the production line delivers a product to the packaging machine, the "SP" terminal outputs a pulse to the T1 terminal of...[Details]
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Recently, the National Development and Reform Commission announced that all foreign equity restrictions in the automobile industry will be lifted in the next five years. At the same time, as subsid...[Details]