The Hierarchy Viewer is a tool released with ANDROIDSDK, located under the Tools folder, named Hierarchyviewer.bat. It's a very useful and easy-to-use tool for Android, which helps us to better view and design the user interface (UI), which is definitely a tool for UI viewing, but it seems like very few people are mentioning it because it's too simple.Specifically, there are 2 main functions:
Intuitively get the information of UI layout desig
The knowledge in this article involves:Crystal Report 9Apply to:All versionsJava ViewerComparisonOutlineSome Crystal decisions products offer two kinds of Java viewers:· Intelligent Java Viewer· Java Plug-in ViewerWhat's the difference between the two viewers?SolutionWhen you select the (smart) Java Viewer, you are using the viewer applet provided by the browser'
Original article address: PCB decoupling capacitor reasonable configuration Author: ker11f
I. Category of decoupling capacitors in PCB
The decoupling capacitor can be used for energy storage when the operating voltage of the integrated chip or circuit board is compensated. It can be divided into three types: integral, partial, and inter-board.
The overall decoupling capacitor is also called a bypass capacit
Address: http://www.dz3w.com/articlescn/pcb/2030.html
Introduction to PCB electrical testing methods
1. Electrical Testing
In the process of PCB production, it is inevitable that external factors may cause electrical defects such as short-circuit, open circuit, and leakage. In addition, the PCB continues to evolve tow
In this article, we will discuss the PCB cabling design methods and requirements. The layout design of components and the direction of electrical connections may produce different results, and the results may vary greatly, therefore, the structure of printed circuit board components should be correctly designed and the correct PCB design should be selected.
I. Design of layout structure of printed line comp
Common ID codes of Event Viewer, viewer id codes
ID
Type
Laiyuan
Meanings of tabulation examples
2
Information
Serial
When verifying whether \ Device \ Serial1 is a serial port, the system detects the first-in-first-out mode (fifo ). This method will be used.
17
Error
W32Time
Time provider NtpClient: an error occurs when the DNS queries the manually conf
Process Module viewer and module Viewer
The main interface is as follows:
The main code is as follows:
BOOL CEnumProcessDlg: OnInitDialog () {CDialog: OnInitDialog (); // Add the "about..." menu item to the system menu. // IDM_ABOUTBOX must be in the range of system commands. ASSERT (IDM_ABOUTBOX 0xFFF0) = IDM_ABOUTBOX); ASSERT (IDM_ABOUTBOX
-panel SMD only with the top layer, the straight-type single panel only with the bottom, but the multilayer board of the power layer is not set here (can be in the Design-layer Stack Manager, point top or bottom, with Add Plane added, with the left mouse button double-click after setting, After the point in this layer is deleted with delete), the mechanical layer is not set here (you can select the desired mechanical layer in the design-mechanical layer and choose whether it is visible and wheth
4-layer PCB design (based on AD)
Reprinted from:Http://blog.sina.com.cn/s/blog_982d7fa301019f21.html
tag: miscellaneous
category: technical _ hardware
Among the many operating layers provided by the system, there are two layers of electrical layers, namely the signal layer and the inner layer. These two layers have completely different properties and usage methods.
The signal layer is called the front-slice
Ctrl+end tune to 0.
Q switch mm and mil
Ctrl+q/////o+b "Separately according to the" British metric system Switch-----"8 detailed said"
0805 stands for length 80mil width 50mil of which 1mil=10 minus three square inches, 1 inches =25.40mmThat's 0805 of the length is about 2.0MM and the width is about 1.27MM.
V+f display of all PCB components
Top overlay Layer (note), similar to the wiring inside the pad
"Align": check-right-click-align-align bottom
character on the back of the board, two or more layers of characters are used for dual panel.
Keepoutlayer (disallow wiring layer) (the red color is the same as the mechanical layer) is simply the frame and shape of the Board.
MultiLayer (multi-layer) (silver) All wiring layers are included. Generally, single-and double-sided plug-in pad is on this layer, and the lines are painted on all layers.1. toplayer (top layer) top layer wiring layer, used to draw electrical connection lines between
Article 1 PCB cablingIn PCB design, wiring is an important step to complete the product design. It can be said that the previous preparations are for it. In the entire PCB, wiring is the most restrictive in the design process, the skills are the finest and the workload is the greatest. PCB wiring includes single-sided
In today's fiercely competitive battery power supply market, designers often use dual Panels due to cost restrictions. Despite its significant advantages in dimensions, noise, and performance, the multi-board (Layer 4, layer 6, and Layer 8) solution has prompted engineers to rethink their wiring strategy and adopt dual panels. In this article, we will discuss the correct use and incorrect use of the Automatic wiring function, the design strategy of the current circuit when there is no ground pla
Despite the increasing integration of semiconductors, many applications also have ready-to-use on-chip systems. At the same time, many powerful and out-of-the-box development boards are increasingly accessible, however, in many use cases, the application of electronic products still needs to use custom PCB. In one-time development, even a general PCB can play a very important role.
. 5.MongoDB export CSV or JSON format, how to choose? Please choose from the following comparison. Size comparison: CSV takes advantage of fewer bytes JSON takes up a lot of bytes Deep structure comparison: CSV view is ambiguous for nested structure tree nodes that are larger than 2 layers. Advantages JSON deep structure defines the structure with the JSON tree structure viewer, Low-level structure comparison: CSV If you have a clear definition for d
With the help of software, you can go to linux for PCB-general Linux technology-Linux programming and kernel information. The following is a detailed description. My bashrc is as follows
# Cadence PSD environment icq 111290069.
CDS_INST_DIR =/opt/psd
CDS_LIC_FILE = $ CDS_INST_DIR/share/cadence. license
CDS_DIR = $ CDS_INST_DIR
CONCEPT_INST_DIR = $ CDS_DIR
CDS_SITE = $ CDS_DIR/share/local/
LD_LIBRARY_PATH = $ LD_LIBRARY_PATH: $ CONCEPT_INST_DIR/tools
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