The instruction manual provided says that P1.5 and 1.4 have pwm out, but no matter what I write, there is no wave. On the contrary, the instruction manual says that P1.2 and P1.3 are timer capture, bu...
[size=4]:lolEveryone had a great time during the holidays~~We are about to return to work and life~,[/size] [size=4] [/size] [size=4]Hurry up and take a look at the technical feast of the past half mo...
[Specifications are very important. Friends who have worked in the company must know that the company emphasizes specifications, especially for large designs (whether software or hardware). It is almo...
Use H-bridge circuit to control two back-to-back LEDs
PMOS as switch, VCCS as current limit
The two LEDs light up alternately with an interval of 5ms, and the light pulse is 0.2ms.Problem phenomenon:
...
When talking about Chinese chips, Ni Guangnan is indispensable. Let’s learn more about the relevant content with the embedded editor.
Since he co-founded Lenovo in 1985, Ni Guangnan has been s...[Details]
Profit growth of 85% in 2017, target revenue of 12.5 billion yuan in 2018: The company released its 2017 annual report, achieving revenue of 8.886 billion yuan, a year-on-year increase of 48.01%; prof...[Details]
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]
Recently, the US embargo on ZTE has attracted much attention. Let's take a look at the relevant content with the automotive electronics editor. On April 16, local time, the U.S. Department of Co...[Details]
With the development of information technology, intelligence, informatization and networking have become the development trend of modern industrial control. Since the 1980s, the rapid development...[Details]
In recent years, in order to meet the needs of social development, more and more companies have entered the fields of smart phones, artificial intelligence,
VR
, AR, etc. After seeing the d...[Details]
The adoption of vehicle tracking systems for cars and fleets is increasing. Modern trackers have reduced form factors and increased functionality to support active data transmission for real-time tra...[Details]
The ZTE incident has aroused people's concerns about the future of Chinese chips, and they have been using WeChat and Weibo to express their views; the Chinese display industry is also worried abou...[Details]
STM32 has 2 watchdogs: independent watchdog and window watchdog. Independent watchdog IWDG: A system fault detector that is independent of the system and is not affected by the system because it has ...[Details]
The calculation formula of the watchdog feeding time (watchdog overflow time) is: Tout=((4*2^prer)*rlr)/40 Tout is the watchdog overflow time (in ms), prer is the watchdog clock prescaler value (...[Details]
I encountered a problem when debugging the STM32 system clock setting: TIM2 timing 1Ms, TIM2 interrupt service function time++, LED state changes when time=100. After the program runs, I found that t...[Details]
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]
The following is a 16-way multi-channel ADC acquisition circuit diagram and source program made using the STM32 microcontroller. It uses a USB interface to connect to the computer, which is actually ...[Details]
Microcontroller programming: Find the maximum number and store it in the BIG unit. Assume that the internal RAM stores a group of unsigned numbers starting from the LIST unit, with the number of data...[Details]
MCS-51 single-chip microcomputer, a simple assembly language program, calculates the function value of a piecewise function. It is known that there is a variable X in the 25H unit. It is required to ...[Details]
Microcontroller MCU
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