[i=s]This post was last edited by wiin on 2021-11-5 15:27[/i]In the kernel state, printk prints information normally.
After mounting the root file system (tested on other boards, it is a runnable root...
[url]https://designcontent.live.altium.com/#UnifiedComponentDetail/Texas_Instruments_Amplifiers_and_Linear_PGA-VGA[/url] I found the component library I needed on the altium official website, but I ha...
Abstract:Microchip Technology launches a new series of 8-bit flash microcontrollers, which improve motor efficiency, reduce noise, expand range and extend life by adding new advanced motor control per...
How to calculate the temperature rise of MOS tube and LDO in the most reasonable way1. What is the most reasonable way to calculate the temperature rise of MOS tubes? Generally, temperature rise = amb...
My computer has no serial port, only a parallel port. I want to connect it to the development board via a parallel-to-serial cable. Is this a good idea?...
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]
1. Function prototype In the function library officially provided by STM32, you can find functions like HAL_Delay(). This function uses a timer to achieve a more accurate time delay and provides it...[Details]
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]
Security PPP is a new model of urban video surveillance projects: 1) The government and social capital establish a project company in a certain proportion; 2) The project company participates in the ...[Details]
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]
This program uses the eight-channel ADC single acquisition mode. According to the configuration, ADC12SC will automatically reset after the conversion is completed in the single mode, so it is necess...[Details]
1. FSMC Brief FSMC, the Flexible Static Storage Controller, is capable of interfacing with synchronous or asynchronous memories and 16-bit PC memory cards. The FSMC interface of STM32 s...[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]
With the development of the automobile industry, more and more automotive electronic components are being used in modern cars, providing better safety, comfort and economy for cars. In the past, cars...[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]
From the functional classification, it can be divided into: 1. Active control ADAS: ACC/AEB/LKS, etc. 2. Warning ADAS: FCW/LDW/PCW, etc. 3. Other auxiliary ADAS: BSD/ADB/panora...[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]
1. Common knowledge about DMA. 1. Function: to achieve high-speed data transmission between chips. That is, it can achieve data transmission without occupying the CPU. 2. Mode: There are three tran...[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]
DMA: 1. When using DAC, when the converted analog signal is output through the IO port, why is the IO port also configured to input mode? PS: The stm32 manual defines that PA4 and PA5 are connected...[Details]