It is obvious that the polarity of a capacitor is charged when it is connected in the forward direction, but what will happen when it is connected in the reverse direction in the circuit? (Within the ...
Longhai Hengsheng Automation Equipment Co., Ltd. specializes in sellingthe full range of German E+H productsAt present, we have mature production experience and high assembly production capacity. Our ...
I connected the PC to the coordinator via the serial port and used sensordemo for one module. After opening sensor monitor, the topology cannot be displayed. The sensor monitor is connected to the coo...
Has anyone modified the RTC function under WINCE60? I modified it according to the method under CE50, but why is the data reported abnormal in the OEMSETREALTIME() function? What is the difference bet...
[hide]Sometimes you may just need a little light so you don’t have to grope in the dark, especially when you are rummaging through boxes and cabinets and can’t find a small thing. An LED light in the ...
Because the STM32 HAL library only has millisecond-level delay for HAl_Delay(), in order to achieve accurate microsecond-level delay, Systick has to be modified. However, since it is used internally ...[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]
I used STM32CubeMX V4.22.1 to generate a project including EHT and Lwip. The debugging has been abnormal. After careful inspection, the following problems were found: 1. The hardware uses LAN8720A, b...[Details]
From last year to now, competition in the photovoltaic inverter industry has become increasingly fierce. In addition to the introduction of new products, various marketing and promotion methods hav...[Details]
As many companies listed with
the concept of
touch screen
begin to "transform and upgrade", the official voice of the TP industry is getting smaller and smaller. At the same time, the list o...[Details]
Since China began to try to produce panels independently in 1998, in 2018, China's panel industry has gradually upgraded from a marginal industry to the largest production scale. Especially in the ...[Details]
I rewrote the main part of this program. The program uses the watchdog as a normal timer and scans the digital tubes in the watchdog interrupt. In addition, I added a display buffer. If you want to d...[Details]
The pins of stm32 have two uses: GPIO (general purpose io) and AFIO (alternate function io) For some pins (depending on the chip), neither of these two uses exists. For example, in 64-pin products, O...[Details]
I have encountered many problems when tinkering with LD driver recently. I will record them one by one below. Otherwise, who will remember who in five hundred years? 1. Configuration issues of multi-...[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]
1. What is PWM What is PWM? Professionally speaking, it is pulse width modulation. In layman's terms, it is the continuous output of high and low levels. For example, the microcontroller outputs...[Details]
/*----------------------------------------------- Name: IIC protocol PCF8591 AD/DA conversion Content: Use DA input, digital tube display output digital quantity, LED display analog voltage size ...[Details]
Getting to the bottom of blockchain
Since last year, blockchain has become the hottest word in both the financial and non-financial circles. Some people use it as a gimmick to engage in va...[Details]
For complex calculations, the speed of the microcontroller is too slow. The best way is to manually calculate all the results in advance, store them in ROM in sequence, and then directly check the re...[Details]
Power technology
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