The STRING string in PCB in PROTEL99 cannot be rotated. Please help me. As shown in the figure below, after clicking the red dot in the figure, the cursor automatically moves to the lower left corner ...
SP(R13)
Special registers
LR(R14)
1. When a subroutine exists, the return address of the subroutine is saved
2. When an abnormal interrupt occurs, save the return address of the abnormal mode
...
Live broadcast collection
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I accidentally discovered that the operating voltage range of a microcontroller is 5.5V-28V. This made me very curious in an era when 3.3V is the mainstream?I know that most automotive-grade MCUs are ...
As shown in the picture, I use it on a motorcycle. The IO is connected to a 3.3V microcontroller. It works fine when it is just installed, but after two days of use, it is accidentally turned on. The ...
According to IT Home on May 19, OPPO has announced that the OPPO Reno8 series will be released on May 23. IT Home has reported that OPPO has also released a rendering of the new phone's appe...[Details]
1 Introduction
The PC-based network video surveillance system developed rapidly in the late 1990s and is still the mainstream of video surveillance systems. However, this system has the d...[Details]
The function of the detector is to convert changes in sample composition and content in the column effluent into detectable signals. Commonly used detectors include ultraviolet absorption, fluoresc...[Details]
STM32 has four general-purpose timers, namely TIM2, TIM3, TIM4, and TIM5, with the following functions: The block diagram of the general-purpose timer is as follows: As can be seen from the figur...[Details]
According to Korean media Thelec, LG Electronics released the company's second quarter operating results on the 30th: sales of 12.8 trillion won (about 75.2 billion yuan) and operating profit of 495....[Details]
There are many different opinions on the meaning of "bandwidth". Many engineers ask why the "bandwidth" of oscilloscopes and the bandwidth mentioned in networks and communications are not the same un...[Details]
RTC Commonly used RTC modules: PCF8563 IIC Interface DS302 SPI Interface DS87887 has many functions but is more expensive BCD code: Decimal number Compressed BCD code, a BCD code from 0 to 9 re...[Details]
If the sun passes through the window glass of the house, it can not only warm our body, but also warm and protect the whole house, and even charge your iPhone. Would you be surprised? Nowadays, the...[Details]
introduction
With the continuous development of microelectronics technology, it is easy to combine computer technology with measurement and control technology to form an intelligent measuremen...[Details]
In recent years, with the continuous development of LED technology, high-power semiconductor lighting devices have developed rapidly in recent years, especially the continuous improvement of white li...[Details]
According to news on December 11, the China Automotive Power Battery Industry Innovation Alliance released data. In November, my country’s power battery installed capacity was 44.9GWh, a year-on-year...[Details]
For some special occasions, it is necessary to reroute cables, relocate cables, etc. We cannot operate cables blindly. Generally, we need to accurately identify cables before relocation, mark them,...[Details]
1. How to determine the three poles of MOS The identification of the three pins on the MOS tube symbol requires grasping the key points. The G pole is easy to identify. The S pole is where the tw...[Details]
Introduction to Data Collection, Data Collection Terminology
Data Collector Introduction
The data collector is a component of SQL Server 2008 that collects diff...[Details]
The RT8488 is a 6-CH LED driver controller that delivers well matched LED current to each channel of LED string.
Application • Building and Street Lighting • LED TV Backlight • LED Monitor Backligh...[Details]