The performance of antennas, including those for mobile terminals, is closely related to their size. When discussing antennas, the standardized electrical length, which is based on the frequency wavel...
[i=s]This post was last edited by johnrey on 2019-1-21 16:07[/i] [size=14px]Although the last round of sensor evaluation was not very smooth, and there are still many problems left unresolved, we fina...
[font=宋体][size=4] [/size][/font] [font=宋体][size=4] When reading integrated circuit manuals, for I/O ports, some device manuals will say that the port can have built-in pull-up/pull-down resistors. Gen...
The same pin, STM32 is set to input mode. The oscilloscope shows a high level, but the microcontroller pin reads a low level. Has anyone encountered the same phenomenon? What is the reason?...
Signal and System Southeast University Mengqiao : https://training.eeworld.com.cn/course/4243Through the study of this course, students should be able to master the basic theories and methods of basic...
Before data acquisition, it is necessary to determine how many data points to collect within a fixed period of time, that is, to determine the sampling frequency. The sampling frequency is a very im...[Details]
The COVID-19 pandemic is a common challenge facing the world. Intelligent technologies, represented by artificial intelligence, have played an important and critical role in this fight against the pa...[Details]
vmalloc initialization process The fifth stage establishes vmalloc Lifetime of vmalloc After vmalloc_init is completed - no end The size of memory managed by vmalloc It can be said that all the m...[Details]
High-precision inclination measurement is required in engineering applications such as geological and petroleum exploration, equipment installation, road and bridge construction, as well as in the ...[Details]
Last month, US President Trump sent a tweet to Apple CEO Cook, lamenting that the iPhone without a Home button was difficult to use, saying that the old Touch ID was "much better" than the new...[Details]
1. Target Function
The total rotation angle of the stepper motor is 720°, including 90° for acceleration and deceleration
Acceleration stage: Acceleration type: S curve
Acceleration ...[Details]
Recently, STMicroelectronics (ST) released such news that ST President and CEO Jean-Marc Chery and Global Marketing President Jerome Roux will resume visits to customers in China in November 2022. Je...[Details]
The following factors may affect the operation of ultrasonic sensors. Please analyze the specific reasons in detail. This article is for reference only.
1. Scope and size
The size of the obje...[Details]
On May 23, according to Taiwan media Economic Daily, panel driver IC manufacturers fired the first shot in semiconductor order cuts. Foundries with a high proportion of driver IC foundry, such as TSM...[Details]
We designed an integrated chip test system using AT89C52 single-chip microcomputer. This test system can realize the function detection of TTL, CMOS series chips and some common key switches common...[Details]
Abstract: This paper introduces the definition of positive and negative half-bridge
switching functions
using the switching logic signals output by the actual controller
to establish a r...[Details]
Each switching system involves different trade-offs. Sometimes commercial requirements override the limitations of technical specifications, resulting in less than ideal results. Sometimes there are e...[Details]
Avoid damage to oscilloscope current probe and instructions for use of current probe
I. Through the fault analysis of damaged current probes, it is found that the parts of the probe that are easily d...[Details]
1. What is a watchdog?
Watchdog, the Chinese name is "watchdog", the full name is watchdog timer. From the literal meaning, we can know that it is actually a timer. However, it is different from th...[Details]
stm32/stm8
京公网安备 11010802033920号
EEWORLD
