Saturday, September 10, 2022

Keepout | Online Documentation for Altium Products

Keepout | Online Documentation for Altium Products

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- pcb - Altium Keep-Out Layer Locked - Electrical Engineering Stack Exchange



 

Select all objects that fall completely inside the selection area or are touched by its boundary. Select all component pads that fall completely inside the selection area or are touched by its boundary.

Add the current selection to the selection already stored in memory location n. Recall selection from memory location n and add it to the current selection in the design space. Move the single object currently under the cursor or group of selected objects if the object is part of that selection.

On a via in a stack of vias, use to move the entire stack to a new location. On a via in a stack of vias, use to move just that via to a new location and not the entire stack. Move the cursor to the left in the current document design space in increments of one snap grid unit. Move the cursor to the left in the current document design space in increments of 10 snap grid units.

Move the cursor to the right in the current document design space in increments of one snap grid unit. Move the cursor to the right in the current document design space, in increments of 10 snap grid units.

Move the cursor upwards in the current document design space, in increments of one snap grid unit. Move the cursor upwards in the current document design space, in increments of 10 snap grid units. Move the cursor downwards in the current document design space, in increments of one snap grid unit. Move the cursor downwards in the current document design space, in increments of 10 snap grid units. Move the current selection one or more selected design objects to the left in the current document design space in increments of one snap grid unit.

Move the current selection one or more selected design objects to the left in the current document design space, in increments of 10 snap grid units. Move the current selection one or more selected design objects to the right in the current document design space, in increments of one snap grid unit. Move the current selection one or more selected design objects to the right in the current document design space, in increments of 10 snap grid units.

Move the current selection one or more selected design objects upwards in the current document design space, in increments of one snap grid unit. Move the current selection one or more selected design objects upwards in the current document design space, in increments of 10 snap grid units. Move the current selection one or more selected design objects downwards in the current document design space, in increments of one snap grid unit.

Move the current selection one or more selected design objects downwards in the current document design space, in increments of 10 snap grid units. Align selected design objects by their left edges while maintaining adequate spacing in observance with applicable design rules. Align selected design objects by their right edges while maintaining adequate spacing in observance with applicable design rules.

Align selected design objects by their top edges while maintaining adequate spacing in observance with applicable design rules. Align selected design objects by their bottom edges while maintaining adequate spacing in observance with applicable design rules. Viewing the Board. Switch the display of the PCB design space to 2D Layout Mode and see the same location and orientation of the board as you switch.

Switch the display of the PCB design space to 3D Layout Mode and see the same location and orientation of the board as you switch. Flip the active board, or active component, just as if you were turning it over in your hand.

Zoom-in, relative to the current cursor location. You can also use the mouse to zoom in to a region of the document by one of the following methods where applicable and depending on how the buttons of your mouse might be assigned : Hold the Ctrl key and roll the mouse wheel upward. Use of the Ctrl key is a default setting that can be changed from the System - Mouse Wheel Configuration page of the Preferences dialog.

Hold both the Ctrl key and the right mouse button, then move the mouse forward. Hold the right first and left second mouse buttons, then move the mouse forward. Click and hold the mouse wheel, then move the mouse forward. Zoom-out, relative to the current cursor location. You can use the mouse to zoom out from a region of the document by one of the following methods where applicable and depending on how the buttons of your mouse might be assigned : Hold the Ctrl key and roll the mouse wheel downward.

Hold both the Ctrl key and the right-mouse button, then move the mouse backward. Hold the right first and left second mouse buttons, then move the mouse backward. Click and hold the mouse wheel, then move the mouse backward. Scroll vertically within the design space. This is a default setting that can be changed from the System - Mouse Wheel Configuration page of the Preferences dialog. Scroll horizontally within the design space.

Redraw the view in the main design window, placing the location marked by the cursor - prior to launching the command - at the center of the window. Refresh the screen, in effect performing a redraw of the current document, to remove any undesirable drawing update effects.

Redraw the current layer of the current document, to remove any undesirable drawing update effects. Access the Layers And Colors tab of the View Configuration panel in which you can configure the display of layers for the board and the colors assigned to those layers.

Access the View Options tab of the View Configuration panel in which you can configure the mode used to display each of the various design items within the design space.

Board Insight Display. Access the Board Insight pop-up, listing all violations of defined Design Rules currently under the cursor. First route or fan out the power nets. After the power nets, consider the critical signals, such as oscillators, differential pairs, high-speed interfaces, then the quiet nets.

An unrouted board can appear intimidating - a mass of connection lines crisscrossing all over the board. A good approach to routing is to work from the schematic, where you can easily locate important components and critical nets.

You can cross-select and cross-probe directly from the schematic components and nets, highlighting the equivalent item on the PCB. To learn more, refer to the Working Between the Schematic and the Board page. You can also control the display of the connection lines by masking or hiding the nets you are not interested in. Setting the color of important connection lines will also help you manage the routing process. The panel is set to Mask with no selection, and 2 nets have been chosen in the panel.

These nets are shown in the workspace, all other objects are masked. Net YOUT has the override color feature enabled, resulting in the objects in that net being shown as a checkerboard. Use the Color Override feature to help routed nets stand out.

How each net that has the Net Color Override checkbox enabled is displayed in the workspace, depends on the current Color Override settings, as shown above. An excellent example of the net color override feature being used to easily identify classes of nets in a high speed design, hover to switch off the override feature.

The schematic editor also supports applying color to nets, and these color assignments can be passed to the PCB editor. Before you start routing, you need to configure the applicable routing design rules. The tree on the left of the dialog shows the 10 rule categories Electrical, down to Signal Integrity. In each category there are a number of rule types, for example, there are eight different types of routing rules you can define.

Selecting a rule type will display all the rules of that type that are currently defined. The image below shows three routing width rules that have been defined for a board. Note the rule priority, this defines the precedence that the rules are applied, with 1 being the highest.

The rules engine searches for the highest applicable rule when an object is being checked for rule compliance. Three routing width rules have been defined for this board. Before doing that, let's explore the PCB editor's 3D capabilities. A powerful feature of Altium Designer is the ability to view your board as a 3 dimensional object. The board will display as a 3 dimensional object - the tutorial board is shown below. You can fluidly zoom the view, rotate it and even travel inside the board using the following controls:.

Hold Shift to display the 3D view directional sphere, then click and drag the right-mouse button to rotate. If you plan on using the 3D mode regularly then you might like to check out a 3D mouse, such as the Space Navigator from 3Dconnexion , which greatly simplifies the process of moving and rotating the board in 3D layout mode. Main article: More about Outputs. Now that you've completed the design and layout of the PCB, you're ready to produce the output documentation needed to get the board reviewed, fabricated and assembled.

The ultimate objective is to fabricate and assemble the board. Because a variety of technologies and methods exist in PCB manufacture, the software has the ability to produce numerous output types for different purposes:. An Output Job file allows you to configure each output type, configure their output naming, format and output location.

Output Job files can also be copied from one project to another. Although the setup dialogs for individual outputs are the same as those used in an Output Job, the settings are independent and must be configured again if you switch from one approach to the other. The OutputJob file, or OutJob, maps each output setting in the list on the left to an output container in the column on the right.

The output setting defines what it is you want to be output double-click to configure , the container defines where the output is to be written to double-click the icon, or click the Change link. Any number of outputs can be added in the OutJob, and outputs can be mapped to individual or shared output containers. Dialog page: Gerber Setup. Configure the Gerber outputs in the Gerber Setup dialog.

Ultimately, every part used in the design must have detailed supply chain information. Rather than requiring that this information be added to each design component, or added as a post-process in an Excel spreadsheet, you can add it at any point through the design cycle, in ActiveBOM. ActiveBOM is used to map each design component to a real-world part. ActiveBOM queries the supply chain in real time, which means the availability of the parts used in this tutorial will change over time. The list of available suppliers also changes over time.

For these reasons, the results you get may be different from the results shown and described in this tutorial. Use the manual solution feature when the part does not include supply chain details. Dialog page: Report Manager. Excel-format BOM's can also have a template applied using one of the pre-defined templates, or one of your own.

The Report Manager, for a project that includes a BomDoc. The presentation of the dialog changes if there is no BomDoc included in the project.

When creating the Bill of Materials template in Excel, a combination of Fields and Columns can be used to specify the desired layout. A list of available fields is detailed below:. Fields provide project-level information. These are not usually attached to each item listed in the BOM, but are often used in the header of the document.

Fields are used in the format:. As well as the default Fields listed in the table above, schematic Document Parameters both default and user-defined in the schematic Document Options dialog and Project Parameters Options for PCB Project dialog can also be used as Fields. If the same parameter exists as both a document parameter and a project parameter, the project parameter takes precedence.

If the same document parameter exists in multiple documents, the document parameter that is higher up in the hierarchy takes precedence. Columns provide the information that is supplied on a per-component basis, and would usually appear on each line in the BOM. Columns are defined by entering the column heading, in the format:. Pick and Place information can also be included from the PCB. Note that these are updated live, and are retrieved when the BOM is generated.

Multiple suppliers can be set up for each component. In the table below, these have been described as Supplier Info x - replace x with the appropriate number.

If you have just edited parameters in the schematic and want to see them in the BOM, save the edited documents and recompile the project before generating the BOM. Note that Fields need to be defined above or below the Column region of the template. Using Altium Documentation. Now reading version Creating a new project.

The new project will appear in the Projects panel. If this panel is not displayed, click the button at the bottom right of the main design window, and select Project from the menu that appears. Use the dialog to navigate to a suitable location, and enter the name Multivibrator in the File Name field.

The file extension does not need to be typed in, as it will be added automatically. Adding a schematic. Right-click on the project filename in the Projects panel, and select Add New to Project » Schematic.

A blank schematic sheet named Sheet1. SchDoc will open in the design window and an icon for this schematic will appear linked to the project in the Projects panel, under the Source Documents folder icon. To save the new schematic sheet, select File » Save As. The Save As dialog will open, ready to save the schematic in the same location as the project file.

Type the name Multivibrator in the File Name field and click Save. Since you have added a schematic to the project, the project file has changed too. Right-click on the project filename in the Projects panel, and select Save Project to save the project. Configuring the Document Options.

If the Properties panel is not visible, click the click the button at the bottom right of the application and select Properties from the menu that appears. For this tutorial, the only change we need to make here is to set the sheet size to A4, this is done in the Page Options section. Confirm that both the Snap and Visible Grids are set to mil. Save the schematic by selecting File » Save shortcut: F, S. Searching through libraries. If it is not visible, display the Libraries panel » Libraries.

Press the Search button in the Libraries panel to open the Libraries Search dialog, as shown above. Ensure that the dialog options are set as follows: For the first Filter row, the Field is set to Name , the Operator set to contains , and the Value is The Scope is set to Search in Components , and Libraries on path.

Click the Search button to begin the search. The Query Results are displayed in the Libraries panel as the search takes place - there should be one component found, as shown in the image below.

You can only place components from Libraries that are installed in the software, if you attempt to place from a library that is not currently installed you will be asked to Confirm the installation of that library when you attempt to place the component. Placement Tips While the component is floating on the cursor, you can: Press Spacebar to rotate it anti-clockwise, in 90 degree increments.

Press X to flip it along the X-axis, press Y to flip it along the Y-axis. Press Tab to display the Properties panel and edit the properties of an object prior to placement. The values entered become the defaults, and if the designator has the same prefix, it will be auto-incremented. During component placement the software will automatically pan if you touch the window edge. Autopanning is configured in the Schematic - Graphical Editing page of the Preferences dialog. Working with the Properties panel during Placement During object placement, if you press Tab the editing process will pause and the interactive Properties panel will appear.

Finding and Placing the Transistors. Select View » Fit Document shortcut: V, D to ensure your schematic sheet takes up the full editing window. Using the search techniques just described, use the Vault panel to search and locate the transistor, BC When you search the Vault, it will first cluster the results to show the folders that contains possible components.

For the transistor search, all results are in the same folder, named General Purpose Transistors. Click the hyperlink to open the search results for that folder, then click the first Item, CMP That component will be presented in the Explorer panel, where you can display the Preview down the bottom and examine the symbol, footprint and component parameters you might need to resize the lower section to display all of the Preview content. Click to select the required transistor, then right-click on it to display the context menu as shown above , and select Place.

The cursor will change to a cross hair and you will have an image of the transistor floating on your cursor. You are now in part placement mode. If you move the cursor around, the transistor will move with it.

Do not place the transistor yet! Before placing the part on the schematic you can edit its properties - which can be done for any object floating on the cursor. While the transistor is still floating on the cursor, press the Tab key to open the interactive Properties panel.

The default behavior is to automatically highlight the most-used field in the panel, ready for editing, in this case it will be the Designator. Note that each section of the panel can be individually expanded or collapsed, which means your panel might look different.

In the Properties section of the panel, type in the Designator , Q1. Confirm that the Visibility control for the Comment field is set to visible. Leave all other fields at their default values, and click the Pause button to return to part placement. Move the cursor, with the transistor symbol attached, to position the transistor a little to the left of the middle of the sheet. Note the current snap grid, it is displayed on the left of the Status bar down the bottom of the application.

It defaults to mil, you can press the G shortcut to cycle through the available grid settings during object placement. It is strongly advised to keep the snap grid at mil or 50mil, to keep the circuit neat, and make it easy to attach wires to pins.

For a simple design such as this, mil is a good choice. Once you are happy with the transistor's position, left mouse click or press Enter on the keyboard to place the transistor onto the schematic.

Move the cursor and you will find that a copy of the transistor has been placed on the schematic sheet, and you are still in part placement mode, with the transistor outline floating on the cursor.

This feature allows you to place multiple parts of the same type. You are ready to place the second transistor. This transistor is the same as the previous one, so there is no need to edit its attributes before you place it. The software will automatically increment the component designator when you place multiple instances of the same part. In this case, the next transistor will automatically be designated Q2.

If you refer to the schematic diagram shown before, you will notice that Q2 is drawn as a mirror of Q1. To horizontally flip the orientation of the transistor floating on the cursor, press the X key on the keyboard. This flips the component along the X axis.

Move the cursor to position the part to the right of Q1. To position the component more accurately, press the PgUp key twice to zoom in two steps. You should now be able to see the grid lines.

Once you have positioned the part, left mouse click or press Enter to place Q2. Once again a copy of the transistor you are "holding" will be placed on the schematic, and the next transistor will be floating on the cursor ready to be placed. Since all the transistors have been placed, exit part placement mode by clicking the Right Mouse Button or pressing the ESC key.

The cursor will revert back to a standard arrow. Finding and Placing the Resistors. Right-click on the chosen resistor to display the context menu, then select Place from the menu.

While the resistor is floating on the cursor, press the Tab key to open the Properties panel. In the Properties section of the panel, type in the Designator R1. The footprint selected here will be transferred to the PCB during design synchronization. Leave all other fields at their default values and click the Pause button to return to part placement, the resistor will be floating on the cursor.

Position the resistor above and to the left of the base of Q1 refer to the schematic diagram shown earlier and click the Left Mouse Button or press Enter to place the part.

Next place the other k resistor, R2, above and to the right of the base of Q2. The designator will automatically increment when you place the second resistor. This search will return all resistors whose values start with 1K, including 1K1, 1K2, 1K3, and so on. Position and place R3 directly above the Collector of Q1, then place R4 directly above the Collector or Q2, as shown in the image above. Right-click or press ESC to exit part placement mode.

Finding and Placing the Capacitors. Return to the Explorer panel, and search for a suitable 22nF 16V capacitor. The search will return a number of potential capacitors, click on Item CMP to use in this design. Right-click on the chosen capacitor and select Place from the menu. While the capacitor is floating on the cursor, press the Tab key to open the Properties panel.

In the Properties section of the panel, type in the Designator C1. Leave all other fields at their default values and click the Pause button to return to part placement, the capacitor will be floating on the cursor. Position the capacitor above the transistors but below the resistors refer to the schematic diagram shown earlier and click the Left Mouse Button or press Enter to place the part.

Position and place capacitor C2. Right-click or press Esc to exit placement mode. Finding and Placing the Connector. Return to the Explorer panel, and search for header, 2-pin, vertical to locate a suitable connector.

The search will return a number of potential headers, from the Description column you will see that some are low profile, some are press fit, and some are standard through-hole headers. Some of the headers have a pin pitch of 0. Note that if the description text is not completely visible, you can hover the cursor over it to display the entire text in a tool tip. Select CMP from the list, right-click on it and select Place from the menu. While the header is floating on the cursor, press Tab to edit the attributes and set Designator to P1.

Before placing the header, press Spacebar to rotate it to the correct orientation. Click to place the connector on the schematic, as shown in the image above. Save your schematic shortcut: F, S. Component Positioning Tips To reposition any object, place the cursor directly over the object, click-and-hold the left mouse button, drag the object to a new position and then release the mouse button.

Movement is constrained to the current snap grid, which is displayed on the Status bar, press the G shortcut at any time to cycle through the current snap grid settings. Remember that it is important to position components on a coarse grid, such as 50 or mil. You can also re-position a group of selected schematic objects using the arrow keys on the keyboard. Select the objects, then press an arrow key while holding down the Ctrl key. Hold Shift as well to move objects by 10 times the current snap grid.

The grid can also be temporarily set to 1 while moving an object with the mouse, hold Ctrl to do this. Use this feature when positioning text.

The grids you cycle through when you press the G shortcut are defined in the Schematic - Grids page of the Preferences dialog Tools » Preferences. The Units controls on the Schematic - General page of the Preferences dialog are used to select the measurement units, select between Mils or Millimeters. Note that Altium components are designed using the an imperial grid, if you change to a metric grid the component pins will no longer fall onto a standard grid.

Because of this, it is recommended to use Mils for Units , unless you plan on only using your own components. The Active Bar The tools most commonly used in each editor are available on the Active Bar, displayed at the top of the editing window. Wiring the schematic. To make sure you have a good view of the schematic sheet, press the PgUp key to zoom in or PgDn to zoom out. Firstly, wire the lower pin of resistor R1 to the base of transistor Q1 in the following manner.

Click the button on the Active Bar Place » Wire to enter the wire placement mode. The cursor will change to a cross hair. Position the cursor over the bottom end of R1. When you are in the right position, a red connection marker large cross will appear at the cursor location.

This indicates that the cursor is over a valid electrical connection point on the component. Click the Left Mouse Button or press Enter to anchor the first wire point. Move the cursor and you will see a wire extend from the cursor position back to the anchor point. Position the cursor over the base of Q1 until you see the cursor change to a red connection marker.

If the wire is forming a corner in the wrong direction, press Spacebar to toggle the corner direction. Click or press Enter to connect the wire to the base of Q1. The cursor will release from that wire. Note that the cursor remains a cross hair, indicating that you are ready to place another wire.

To exit placement mode completely and go back to the arrow cursor, you would Right-Click or press ESC again - but don't do this just now. Next wire from the lower pin of R3 to the collector of Q1. Position the cursor over the lower pin of R3 and click or press Enter to start a new wire.

Move the cursor vertically till it is over the collector of Q1, and click or press Enter to place the wire segment. Again the cursor will release from that wire, and you remain in wiring mode, ready to place another wire. Wire up the rest of your circuit, as shown in the animation above. When you have finished placing all the wires, right-click or press ESC to exit placement mode. The cursor will revert to an arrow. Wiring Tips Left-click or press Enter to anchor the wire at the cursor position.

Press Backspace to remove the last anchor point. Press Spacebar to toggle the direction of the corner. You can observe this in the animation shown above, towards the end, when the connector is being wired. Available modes include: 90, 45, Any Angle and Autowire place orthogonal wire segments between the click points. Right-click or press Esc to exit wire placement mode. Whenever a wire crosses the connection point of a component, or is terminated on another wire, a junction will automatically be created.

A wire that crosses the end of a pin will connect to that pin, even if you delete the junction. Check that your wired circuit looks like the figure shown, before proceeding. Wiring cross-overs can be displayed as a small arch if preferred, enable the option in the Schematic - General page of the Preferences dialog. Adding net labels. Click the button Place » Net Label. A net label will appear floating on the cursor.

To edit the net label before it is placed, press Tab key to open the Properties panel. Type 12V in the Net field, then click the Pause button to return to object placement. Place the net label so that its hotspot the bottom left corner touches the upper most wire on the schematic, as shown in the images below. The cursor will change to a red cross when the net label is correctly positioned to connect to the wire. If the cross is light grey, it means there will not be a valid connection made.

After placing the first net label you will still be in net label placement mode, so press the Tab key again to edit the second net label in the Properties panel before placing it. Place the net label so that the bottom left of the net label touches the lower most wire on the schematic as shown in the completed schematic image, above. Right-click or press ESC to exit net label placement mode. Save your circuit, and the project as well.

Net Labels, Port and Power Ports As well as giving a net a name, Net Labels are also used to create connectivity between 2 separate points on the same schematic sheet. Ports are used to create connectivity between 2 separate points on different sheets. Offsheet connectors can also be used to do this.

Power Ports are used to create connectivity between points on all sheets, for this design Net Labels or Power Ports could have been used. Compiling the Project After you complete the schematic in Altium Designer, you compile it. Configuring the Error Checking. Scroll through the list of error checks and note that they are clustered in groups, and each group can be collapsed if required.

Click on the Report Mode setting for any error check and note the options available. Changing the Connection Matrix. To change one of the settings click the colored box, it will cycle through the 4 possible settings. Note that you can right-click on the dialog face to display a menu that lets you toggle all settings simultaneously, including an option to restore them all to their Default state handy if you have been toggling settings and cannot remember their default state.

Your circuit contains only passive pins. Let's change the default settings so that the connection matrix detects unconnected passive pins. Look down the row labels to find the Passive Pin row. Look across the column labels to find Unconnected. The square where these entries intersect indicates the error condition when a passive pin is found to be unconnected in the schematic. The default setting is green, indicating that no report will be generated.

Click on this intersection box until it turns Yellow as shown in the image above , so that a warning will be generated for unconnected passive pins when the project is compiled. You can modify the locations of existing vertices, add new vertices or remove them as required. Arc connections between vertex points can be defined and support is also provided for exporting vertex information to and importing from a CSV-formatted file.

Using Altium Documentation. Fills and Solid Regions An example of a selected solid region A fill Place » Fill is a rectangular-shaped design object that can be placed on any layer, including copper signal layers. A placed Fill A fill is a rectangular object that can be placed on any layer. Click the Fill button in the drop-down on the Active Bar located at the top of the design space. Click and hold an Active Bar button to access other related commands.

Once a command has been used, it will become the topmost item on that section of the Active Bar. Right-click in the design space then click Place » Fill from the context menu. Click the button on the Wiring toolbar. Right-click in the design space then select Place » Fill from the context menu.

Placement After launching the command, the cursor will change to a cross-hair and you will enter fill placement mode. Placement is made by performing the following sequence of actions: Click or press Enter to anchor the first corner of the fill. Move the cursor to adjust the size of the fill then click or press Enter to anchor the diagonally-opposite corner and complete placement of the fill.

Continue placing further fills or right-click or press Esc to exit placement mode. A fill will 'adopt' a net name if it touches an object that has a net name.

While attributes can be modified during placement Tab to access the Properties panel , keep in mind that these will become the default settings for further placement unless the Permanent option on the PCB Editor — Defaults page of the Preferences dialog is enabled. When this option is enabled, changes made will affect only the object being placed and subsequent objects placed during the same placement session. Fill Properties.

Net Information Net Name - the name of the selected net. Net Class - the name of the selected net class. The icon to the right of this region must be displayed as unlocked in order to access the below fields.

 


Defining the Board Shape in Altium Designer | Altium Designer 22 User Manual | Documentation.



  A Keepout in PCB design is a user-defined area or perimeter placed in the layout that copper objects cannot intersect. It creates a keepout on only that signal layer. Keepout objects are simply standard design objects with the Keepout checkbox enabled in the. Keepouts are automatically restricted to the Layer they are placed on, so Keepouts applied directly to the Keep-Out layer will become All Layer Keepouts. When.    

 

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    Keepout type objects that are included in PCB design files from other design tools, some of which are object specific, are converted to Object Specific Keepouts by the Wizard, where possible. Keepout objects placed on the Keep-Out Layer i. Additionally, when I try to place a line and press the Tab key and try to select the Keep-Out Layer from the Layer dropdown box, it doesn't appear in the list. Printer-friendly version.


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