[size=4]I need two 2812s to control four motors. The host needs to send control signals to the slave, and the slave sends encoder information to the host. Therefore, stable, real-time and rapid commun...
This is a very common reset circuit for STC, but why when I connect it like this, the RST pin is always 2.5V, and the microcontroller never works. Only when R1 is short-circuited to GND can it work? W...
Haha, I was so excited that I forgot the model of the board.LM3S8962MSP-EXP430G2 with Launchpad Touch cardez430-RF2500You can collect some relevant information first to see what these boards are suita...
There are 74, LM, ULN, LM, CD, etc. before the chip model. What do these mean? Do they refer to a series of products produced by a certain company or are they named by a certain organization?...
The Sino-US trade war has already started. Trump's series of actions have had a negative impact on the global economy, such as increasing tariffs on Chinese companies and restricting domestic compa...[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]
In the actual project development process, hardware circuits often need to be modified, and the modified parts need to modify the driver. Thinking about the coming and going of such requirements is t...[Details]
In simple terms, high-end chips solve many complex problems, mid-range chips solve a single complex problem, and low-end chips solve a simple problem. Let's learn more about the relevant content wi...[Details]
introduction STM32 has many registers, which are difficult to remember, so the official packaged two sets of library functions. One is the standard library, but the official has not updated it on F7,...[Details]
LAN8720 test code arrangement 1. Modified based on two projects, namely "Experiment 55 Network Communication Experiment" of Zhengdian Atom ATK and "STSW-STM32070" routine of ST official The hardware ...[Details]
Recently, the "Smart Photovoltaic Industry Development Action Plan (2018-2020)" jointly issued by six departments has put this concept on the forefront. Photovoltaic smart solutions will become the ne...[Details]
In most countries, the military is a fairly large group, and the health of soldiers is particularly important to the combat effectiveness of the army. The US Department of Defense's Advanced Resear...[Details]
At present, in the world,
the construction of
smart cities
is in the process of gradually landing from concept, and technology giants and investment giants are important participants in this...[Details]
The F1 racetrack is roaring with engines, and a fierce F1 race is about to begin. I am not a fan of racing cars, and I have nothing to do with this world, but
I spent a special day here
because...[Details]
In order to strengthen the traceability management of recycling and utilization of power batteries for new energy vehicles, and to standardize and guide all relevant parties to fulfill their tracea...[Details]
In mid-to-late 2016, a girl from Hubei came to Beijing alone, full of curiosity about
cloud computing
. The girl left the deepest impression on me was her lovely smile. She told me that if ...[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]
STM32 ADC multi-channel conversion Description: Use ADC to continuously collect 11 analog signals and transfer them to memory through DMA. ADC is configured to scan and continuously convert mode,...[Details]
The frequency calculation formula of the PWM wave generated by the output comparison mode of the timer is: 72M/((2*(arr+1))*(psc+1) ) For example, if you set: PWM_Init(1000-1,72-1); (PWM_Init(arr,psc...[Details]