Generally, the order of a four-layer board is: signal layer - ground layer - power layer - signal layer;
In order to ensure the minimum loop path, the stratum needs to remain a complete piece;
So, doe...
404724[/attach][/url][/align] [font=微软雅黑][size=3][align=center][color=#0000ff][b]March 20-22, 2019[/b][/color][/align] [align=center][color=#0000ff][b]E5 Hall 5543 · Shanghai New International Expo Ce...
[i=s]This post was last edited by bigbat on 2019-2-22 11:41[/i] The test board I received yesterday afternoon (2019/2/21) was provided by ST. The information of this board is on [url=https://www.stmcu...
Can't the chat routine provided by BlueNRG directly put notification and writing in the same characteristic? When testing, two-way communication cannot be normal. If anyone knows, please let me know. ...
On March 9, CES Asia (Asia Consumer Electronics Show) announced that the 2020 Asia Consumer Electronics Show, originally scheduled to be held in Shanghai, China from June 10 to 12, 2020, will be post...[Details]
introduction As a complex of high-tech, intelligent robots directly reflect the development level of a country's information technology and have been highly valued by all sectors of society. Inte...[Details]
Dagens Industri reported today, citing people familiar with the matter, that Borje Ekholm, CEO of Swedish telecom equipment maker Ericsson, may soon announce his resignation and be succeeded by Hakan...[Details]
1. Analysis of the reasons for the failure of assembly software assembly:
Here we use the macro assembler A51 in the Keil C51 software package as the compiler. When writing the assembly langua...[Details]
The basic structure of the microcontroller includes six parts: central processing unit (CPU), memory, timer/counter, input and output interface, interrupt control system and clock circuit. 1. Basic...[Details]
On the afternoon of the 28th, Yangzhong signed a strategic cooperation agreement with the State Grid Zhenjiang Power Supply Company to "build an urban energy internet, improve the overall energy ef...[Details]
In recent years, with the continuous deepening of the study of shot noise in mesoscopic physics and nanoelectronics, people have found that shot noise can well characterize the internal electron tr...[Details]
Event Structure
Event Structure is also a selection structure. The program decides which page to execute based on the event that occurs. At this time, the interface programming of La...[Details]
According to the latest shipment estimates released today by IDC, Apple continued to dominate the wearable device market in the fourth quarter of 2020. Apple shipped 55.6 million wearable devices in ...[Details]
Recently, Guangdong Hydropower No. 2 Bureau Co., Ltd. (hereinafter referred to as the "Company") and Shenzhen Tianli Energy Storage Technology Co., Ltd. (hereinafter referred to as "Tianli Energy S...[Details]
In battery-powered circuits or constant-current powered circuits, sudden current surges that operate relays can cause the supply voltage to drop. This is the result of internal resistance or current ...[Details]
1. Choose the right algorithm and data structure.
You should be familiar with the algorithm language and know the advantages and disadvantages of various algorithms. For specific information, please ...[Details]
LED TV general lighting fixtures usually use pulse width modulation (PWM) technology to achieve constant current power supply and dimming functions of LED, which will generate a certain degree of r...[Details]
The S3C2440A Universal Asynchronous Receiver and Transmitter (UART) provides three independent asynchronous serial input/output (SIO) ports, each of which can operate in interrupt or DMA-based mode. ...[Details]
TrendForce DRAMeXchange said that in addition to the traditional off-season factors, smartphone and server OEMs began to adjust their inventory in the fourth quarter of last year due to weak demand, ...[Details]
Analog electronics
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