the Design Cache folder, select the component that you just modified, right-click Select Update Cache , go all the way to update the component in the schematic diagram.6) Some details:The magnification and reduction of the drawing schematic is the difference between the button "I" (zoom in) and the "O" (Zoom Out) and the Protel, in the creation of the component package, in addition to GND can have the same name, no other pin, no error, but seemingly error has no effect, Because the OrCAD comes
Label: des HTTP ar strong data SP Div 2014 CPCB design, especially high-frequency and high-speed design, will inevitably involve the calculation and setting of PCB-related parameters, such as via overcurrent capacity, via parasitic capacitance, impedance, etc, the current carrying capacity of the wire, crosstalk between two coupling signal lines, wavelength and other parameters.Here we will introduce a Saturn PCB
Autocam Automation platform, front-end management orders, the back end of the task, the front-end UIL interface has board thickness, copper thickness, plate, surface treatment, layers and other information, And this information is not after the end of the end of the information needed. Take the bore hole compensation, the back end needs is the borehole compensation value, but the front end does not have this information, wants to get this drill hole compensation value is through the Multidimensi
(1) Error One
In the schematic of the electrical connection, must appear red fork, otherwise not counted electrical connection:
The following figure:
(1) Error two
The same network designator, on behalf of the electrical connection, when placing the net network designator, also should pay attention to, appear red fork to calculate electrical connection
(1) Error three
When making the schematic library, manually draw the schematic elements, note that the pin cross-out (otherwise all errors):
(
Linux-based schematic and PCB, Linux-based schematic PCBLinux schematic and PCBThe famous Allegro and the classic Protel 99SE in Windows do not support the Linux operating system. To develop a Linux driver, you must check the principle diagram and PCB.There are three common practices:1. The host uses the Windows system and installs Linux in virtual machines such as VMWARE so that you can use the software in Windows to view the schematic diagram and
Objective: To add a logo to an enterprise design or personal work
Tool used: alicloud desinger 6.6
Photoshop
Background: The black and white images required in the operation are not black and white images that appear. But the file storage method is only black or white. You can edit the image file to open it. The image storage depth is 1 bit.
Procedure:
1. Use PS to convert an image into a black/white BMP Image
1.1 Load
1.2 image> mode> greyscal
1.3 image> mode> bitmap
1.4 save
2. Use aladedes
PCB Optimization Design (i.)2011-04-25 11:55:36| Category: PCB design SMT technology is now very mature and widely used in electronic products, therefore, electronic product designers need to understand the SMT technology common Sense and manufacturability design (DFM) requirements. SMT process products, at the beginning of the design should be integrated into consideration of the production process, raw ma
From http://blog.mcuol.com/User/luozhen0810/Article/9700_1.htm
Printed circuit boards (PCB) appear in almost every electronic device. If there are electronic parts in a device, they are all mounted on PCB of different sizes. In addition to fixing all kinds of small parts, the main function of PCB is to provide the electrical connection between the above parts. A
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
From: 21ic
When it comes to PCB, many friends will think of it everywhere around us. From all household appliances, various computer accessories, to various digital products, PCB is almost used as long as it is an electronic product, so what is PCB? PCB is the printedcircuitblock, that is, the printed circuit board, fo
-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
outside.3.PCB Library is similar, to strictly follow the introduction of the component Datasheet size design!!! Through the wizard mode can be generated some common ~ in the custom design of the various pads are commonly used to change the properties of the pads into!4. The corresponding component bindings for the PCB package in the schematic library:4. With the
After the schematic design, the drawing board is required. a pcb file is required. There are several ways to generate a PCB file:
1. directly use File> New> PCB in the toolbar to create a PCB, as shown in figure
2. Another better method is to use the PCB generation
problems, especially the EMC and EMI Problems in High-Speed PCB wiring. There are many conflicts and they are a headache. How can we solve these conflicts?
Answer: 1. Basically, it is right to divide and isolate the modulus/number. It should be noted that the signal line should not be crossed through a separate place (moat), or the returning current path of the power supply and signal should be too large.2. the crystal oscillator is a simulated posit
Address: http://www.pcbres.com/pcbtech/circuit/20070612145.html
URL: http://www.360doc.com/content/10/1227/16/4920904_81765495.shtml
This section describes the PCB wiring and some common rules for PCB painting. When you use PCB layout, you can refer to these materials to draw a high-quality PCB. Of course, you can also
Address: http://blog.csdn.net/happyflovef/article/details/5584479
Design of multilayer PCB at, December 30
Before designing a multi-layer PCB, the designer must first meet the requirements of the circuit scale, circuit board size, and EMC.Determine the structure of the circuit board, that is, the four-layer, six-layer, or more layers of the circuit board. After determining the number of layersDeter
Toplayer (top) Draw the line is red, is the general double-sided board on the upper layer, single panel can not use this layer.The Bottomlayer (bottom) line is blue, which is the line above the single panel.MidLayer1 (middle layer 1) This is the first layer, as if there are 30 layers, the general design staff can not use, you do not have to control him, multi-panel time use. The default is not displayed in 99SE and is not available.Mechanical Layers (mechanical layer) (purple red) used for label
Design processA. Creating A network table1. Network table is the schematic and PCB interface files, PCB designers should be based on the use of schematic and PCB design tool characteristics, choose the correct network table format, to create a network table that meets the requirements.2. In the process of creating a network table, you should actively assist the s
#include #include #include #include #define RUNNING 0#define READY 1#define WAIT 2typedef struct PCB{The identification number of the int pid;//processint priority;//The priority of the process, the greater the value, the higher the priority levelint pstatus;//The state of the processstruct PCB * next;//pointer to next process}PCB;
PCB Optimization Design (II.)2011-04-25 11:41:05| Category: PCB design SMT technology is now very mature and widely used in electronic products, therefore, electronic product designers need to understand the SMT technology common Sense and manufacturability design (DFM) requirements. SMT process products, at the beginning of the design should be integrated into consideration of the production process, raw m
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