In C language, the literal meaning of static can easily lead us astray, but it actually has three functions.
(1) Let’s start with the first and most important one: hiding.
When we compile multiple fil...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:40[/i] [size=10.5pt]DS18B20[font=宋体]Digital tube temperature display[/font][/size] [size=10.5pt][font=宋体]Brief description: Detect DS18B20 wh...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:03[/i] [p=20, null, left][font=Verdana, sans-serif][size=4][color=#000000][backcolor=white]Wearable devices are the hottest technology ...
Sign bit extension is often used in digital signal processing. If the number of bits extended is small, such as the sign bit extension of 1 bit, then the bit splicing method can be used. However, if t...
Due to project needs, I purchased two development boards. I have been using Huatianzheng's development board, and have never used Youjian's except after turning it on. I am now selling it. For detaile...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:58[/i] The chip gap is as high as 70%. Since April this year, there have been constant reports of tight supply of LED chips. In May and...
Recently, the U.S. Department of Commerce announced that it would prohibit companies in the country from selling any electronic technology or communication components to ZTE, a Chinese communicatio...[Details]
1. Problem When developing STM32 with IAR, I found that I could not print floating point numbers by redirecting printf to the serial port. The code is as follows: The output is as follows: It can...[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 have always wanted to write some posts and blogs, but I just couldn't bear to do it as I just graduated. After some preparation, I decided to write down some of the things I learned in the past few...[Details]
Time flies. Since the beginning of 2018, news related to home appliance companies have repeatedly made headlines, and competition in the home appliance market continues to intensify. In order to be...[Details]
Autonomous driving
and
5G
are the two hot topics that global companies and media are paying the most attention to, and the combination of the two is the focus of everyone's attention....[Details]
This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]
What is SYSTICK: This is a 24-bit system tick timer, SysTick, with automatic reload and overflow interrupt functions. All microcontrollers based on the Cortex_M3 processor can obtain a certain time ...[Details]
As the brain of a mobile phone, the mobile phone processing chip is of great importance. Xiaomi, which started out as the MIUI company, has long been keenly aware of the gap between China and devel...[Details]
On May 16, in response to
the public opinion storm caused by
Lenovo's
"
5G
voting" incident,
Lenovo
Holdings Chairman and
Lenovo
Group Founder Liu Chuanzhi, Lenovo Gr...[Details]
Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[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]
Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[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]
In the 80C51 single-chip microcomputer, the clock frequency is known to be 6MHz. Please program P1.0 and P1.1 to output square waves with periods of 2s and 0.5s respectively. Please give the answer a...[Details]
DSP and ARM Processors
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