Altiumdesigner Study Notes (i)--Create engineering and schematic documents

I. Create engineering and schematic documents

1. Create a PCB project from the menu

(1) FILE-NEW-PROJECT-PCB project to create a new PCB project in the current workspace

(2) The new project does not create the file directly on the hard disk and needs to be saved: In the Project panel, right-click the new project name-Save project, in the popup dialog box, select the project storage directory (typically create a new dedicated catalog for the new project) and name the project.

2. Add the principle file to the project through the menu or Project panel

(1) In the Project panel, right-click the new project-ADD new to Project-schematic

(2) The new file does not create the file directly on the hard disk, it needs to be saved: Click the Save file icon in the toolbar, then select the directory and name the file in the Pop-up dialog box.

Second, schematic options

Shortcut key "D-o"

1. Grid

– The grid is almost a must-have concept in any computer-aided graphic design tool

– in AD schematic editing, it contains the following three types of rasters:

? snap Raster
When you operate in a schematic, the cursor moves on the snap raster, and the move step is the grid size

? The view grid
Rasters displayed in the schematic diagram

? Electrical grids
The raster that the cursor can reach when manipulating an element with electrical significance

2. Units

Define some predetermined parameters (including the drawing author, name, number, etc.) or add custom parameters that can be referenced in the sheet, prefixed with "=" followed by parameter names (such as "=author"), which are automatically converted when the sheet is printed or published, and optionally converted or not converted in the editor

3. Fill in the title bar

– Fill in the title bar information in the parameters and fill in the parameter reference in the title bar (place the string "P-t"), you can change the snap grid by "G" during placement

– Double-click the string Pop-up Properties dialog box to modify properties such as color, font, and font size

– parameter references are not converted by default and can be modified in the schematic options in the environment options

Three, schematic drawing tool

1. Drawing Tools

– Menu shortcut key "p-d"

– The drawing tool has no electrical significance for drawing schematic drawings, callouts, borders, etc. in the schematic

2. Electrical Connection Tool

– Most of the tools in the menu shortcut "P"

– Electrical connection objects include:

Conductor (WIRE) "P-w"

? Manual node (Manual Junction)

Bus "P-b"

– A collection of related conductors that actually do not have electrical significance

Bus Entry "P-u"

– Wire-to-bus connection, which does not actually have electrical significance

Wiring Harness (harness) "P-h"

– A collection of conductors and buses with related functions

Network label (NET lable) "P-n"

– The network with no wires connected is marked as having an electrical connection

? Power port (Power ports) "P-o"

– Ports that always have a global meaning, typically for power supplies

Port "P-r"

– A connection from a sheet in a hierarchy to a parent diagram, or a connection between sheets in a parallel structure

? Cross sheet connection (Off Sheet Connector) "P-c"

– Connections between sheets of the same sub-graph in the hierarchy

? drawing symbol (Sheet symbol) "P-s"

– A reference to a child graph in a hierarchy

? Drawing entry (Sheet Entry) "P-a"

– In the hierarchy, in the sheet symbol, corresponding to the port of the sub-graph

Iv. Use of libraries

1. Use Library

2. AD Library

? The ad library is very rich and will be replenished as the version upgrade continues

The –ad library is located in the "library" directory under the installation directory

– Contains a large number of devices from many vendors in the form of an integrated library

– Almost all standard packages are included in the "LIBRARY\PCB" directory

? When a component is required, it is recommended to search for the existing library file for the ad

Five, placing components

? You can place components by using the menu shortcut "P-page", or you can place components through the library panel (recommended)

– In the library panel, select the symbol you want to add, click Place XXX to position the component

– In the process of placing a component, you can:

? Space, Shift+space: Rotating element

? X, Y: Flip Component

? Tab: Modify Symbol Properties

? G: Toggle Snap Grid (10, 5, 1)

? Left-click: Place Component

? Right-click: Stop Placement

1. Component Properties

? Component properties

– You can press the TAB key when placing a component to modify

– You can also double-click on the placed component to modify

2. The properties of passive components such as resistor capacitance

– in the parameter list of the passive component, it generally contains the "Value" parameter, which is also the simulation parameter of the component.

– The component values should generally be filled in the "value" parameter and set to "Visible"

– "Comment" is used to fill in the component model, for general resistance element No specific model, you can set it as a parameter reference "=value" and hide

– Parameters such as the power of the resistor, the voltage of the capacitor, and a new custom parameter can be added to the parameter list

3. Package Selection of components

– For components in the integrated library, the general package has been selected without concern

– For a component that you draw, if you draw the library without specifying an encapsulation, you can specify when you draw the schematic diagram

– click "Add ..."-"footprint" at the bottom right of the Symbol Properties dialog box to add the package or select an existing package click "Edit" to modify an existing package

Six, draw the circuit

1. After placing some components, start drawing the circuit

(1) "p-w", Draw the Wire

The mouse becomes a crosshair, moving the cursor, according to the electrical grid, when the cursor snaps to a connection point with electrical significance, the gray small diagonal cross will become larger and red, and then click to start drawing, or you can start drawing in any blank area

Move the cursor, draw the wire, by default The wire will only turn 90 degrees, when:

– "Space": Change the outgoing direction (first horizontal or vertical)

– "Shift+space": Change corner angle (90 degrees, 45 degrees, any angle)

– tab: Change the Traverse properties (thickness, color, etc.) and do not suggest changes!

? When you draw a wire, when you snap to an electrical connection point, click Finish Drawing, when the electrical connection point is not captured, click OK to continue moving the cursor to continue drawing

(2) P-r ", Draw port

? Click OK to move the cursor to determine the port length

– "tab": Change Port Properties

? Click again to finish drawing

The port name can be named network;
You can also not name the network,
Depends on project options

(3) "P-o" Draw power port

?“ TAB key to change the properties

? Move the cursor to determine the location, click Place

The port form (style) only determines the graphic symbol, does not have the electrical significance, the electrical meaning completely depends on the network name

–circle

–arrow

–bar

–wave

–power Ground

–signal Ground

–earth

2. Monitor panel

– The viewer panel allows you to view and modify the properties of a selected single (or multiple) object (Common properties)

– Modifying the component properties through the viewer panel is the same as modifying the effect in the Symbol Properties dialog box

3. Find Similar Objects dialog box

– The Find similar Objects dialog box can be recalled via the right-click menu

– You can find similar objects with the same property values by specifying the property items and property values to use for matching

VII. Hierarchical structure

1. Multi-Drawing editing

– A slightly larger circuit can often not be drawn in a single sheet, in an ad's PCB project, it is possible to generate a PCB from multiple sheets

– The structure relationship of multiple drawings can be set in the project options ("C-o"-option), and AD supports the following structural relationships

Automatic, automatically combined according to the drawing contents

? flat, multiple sheets at the same level, with only port connections

? hierarchy, drawing from top to bottom, sub-map port corresponds to sheet Entry in parent figure sheet symbol
Hierarchy is the most rigorous and rigorous, the scale of the circuit recommended the use of hierarchical structure

Globally, net lable and ports in all sheets are globally valid

2. Multi-Drawing structure

– Sheet Reference (parent reference sub-chart)

? A drawing can refer to another sheet by placing sheet Symbol ("P-s")

In the placement process, press the TAB key to modify the properties.

? In a sheet reference relationship, the reference is referred to as the "parent", referred to as the "sub-figure"

–sheet Entry

For hierarchies, add Sheet Entry ("P-a") to the Sheet symbol in the parent diagram, and Sheet Entry corresponds to the port in the sub-graph to connect the network in the child graph to the parent graph

When you place sheet entry, press the TAB key to modify the properties

For flat or global structures, the port or even net label between the sub-graphs is connected and does not require sheet Entry

– Automatic generation of sheet Symbol with sheet entry

For a well-drawn sub-diagram, add a reference to it in the parent, you can use "Create Sheet Symbol Form Sheet Or HDL" ("D-y"), and then select the sub-map name to refer to in the popup dialog box

–sheet symbol Sync

After adding or modifying a sub-diagram port, or adding or adding, modifying Sheet entry, you can synchronize by Sheet the "Sheet symbol Action"-"Synchronize Sheet Entries and Ports" in the right-click menu

Altiumdesigner Study Notes (i)--Create engineering and schematic documents