Questions tagged [altium]

Altium is integrated schematic capture, PCB design and FPGA software.

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Altium short circuit error at x=0 mm, y=0 mm. Don't know why

I have found 824 short circuit errors at [x=0 mm] [y=0 mm]. I think they came from I copy/paste polygons. But I don't know to solve them. I have checked there is nothing selectable at this original ...
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1answer
27 views

How to open a components' schematic symbol for editing quickly in Altium

Let's say I have a component in my schematic in Altium. I can see the schematic library it came from and its Design Item ID. However to edit it, I need to open the schematic library and look for the ...
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12 views

How to convert Proteus NC drill file to Altium Designer?

I've read some articles about how to transfer the Proteus project into Altium project. When I followed their instructions, most steps are fine except when I wanted to generate a netlist from the CAM ...
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41 views

Is it possible to attach extra text labels to components in Altium PCB?

I recently migrated from old Orcad to Altium, and so I often run into things that work differently. One of these things is adding extra text labels to a component in the pcb editor. A good example is ...
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18 views

How to preview the full content of a PcbLib on Altium?

I have a PcbLib that includes hundreds of footprints with 3D models and I would like to create a gallery including the 3D isometric view and the name of the footprint. Is this possible? Why do I want ...
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37 views

Is it possible to create Altium PCB footprints without designator labels?

I'm pretty new to Altium, have years of experience with Orcad. At the moment I'm in the process of filling a PCB library. Among them there are no-BOM footprints like test points, mounting holes and ...
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1answer
54 views

PCB Edge “via shield” (Faraday Cage) using Altium

I am trying to add a "via shield" to my PCB edges, which is also called a Faraday cage. I am trying to add vias using Altium software, but the vias are added outside the PCB edge and not ...
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1answer
31 views

Convert ALTIUM file to Autodesk EAGLE: what is the most recent procedure?

I would like to convert following Altium file to EAGLE: https://www.st.com/en/microcontrollers-microprocessors/stm32wlex.html#cad-resources To do so I have opened the file in Altium and exported it to ...
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52 views

Why this selected area is bigger than the component area?

I am new to Altium, this is my first board development. My question is why the selection area is bigger than the component area, How to remove it{because I can't able to place another component near ...
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33 views

Altium mechanical layers not showing up in layer selection

edit: I'm dumb I realized I could just press "l" and manually add in the mechanical layers I need I have a few .PcbLib documents, and all but one of them I am able to select lines, polygons, ...
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29 views

Sharing a common schematic among multiple boards in Altium

Is it possible to share a single schematic among multiple boards in Altium? In the old days when schematic capture and PCB layout were more separate, it was more obvious how to do this. How about now? ...
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Create assembly variant with a script in Altium

Is there any way to define a new assembly variant using scripting language? I can see that there are some variant-related procedures in IProjectInterface, however ...
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1answer
19 views

Adding footprints to multiple components at once in Altium

I have a library with a few hundreds of passives, each with 2 footprints (ie. 0603_IPC_A, 0603_IPC_B). I want to replace these footprints with new ones from a different library. Is there a way to do ...
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52 views

How to calculate impedance of a PCB trace Antenna in Altium w.r.t. a given frequency?

I am keeping things abstract as I intend to learn and not just copy another design. So, suppose I am trying to design an antenna of impedance Z and frequency f. Now, in Altium 18, there is a feature ...
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29 views

Altium Designer component search

I am coming from Autodesk Eagle and I am new to Altium Designer. I just have a quick question. In Eagle I was able to have a lot of different libraries available in my library manager and whenever I ...
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15 views

polygon not defined on board in Altium

I am trying to create a polygon in my pcb in altium. At first I thought it didn't create a polygon at all, but now I realized it is creating it, but only outside of the board. The polygon inside of ...
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1answer
33 views

Altium Designer Deleted schematics completely

I opened up Altium after a windows update, and received this error: ...
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17 views

Altium Designer - PCB import components offset

Does anyone know why is Altium importing some of the components to the PcbDoc in this manner? I've checked each of the imported component pick-point and it is in the center of the footprint.
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24 views

Can I include component supplier url in Altium Designer BOM file?

I'm new to Altium Designer and experimenting with a small pcb. Now that I've finished it I was considering ordering it at Seeed Studio and was curious about the posibilities to have it assemblied. I ...
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27 views

Locating and Adding Arduino Due Schematic/Footprint to Altium

I am working on the design of a PCB that is being used to allow for quick/modular swapping of sensors with specific types of connectors to various pins on an Arduino Due board. I have looked but I am ...
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24 views

Altium shortcut keys stopped working

Recently for no reason at all some Altium shortcuts have stopped working, although not in all modes. For example, while placing anything in the schematic mode, pressing TAB no longer jumps to the ...
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44 views

Altium connection lines do not show the shortest connection

The connections are between a processor and a DDR chip. The problem is that Altium only shows pad to pad connection line not the shortest (eg not via to via or via to pad). The strange thing is when I ...
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1answer
31 views

Altium - Use Net Tie on a Plane Layer

Is it possible to use a net tie on a plane layer? I know how to use a net tie to connect two different polygon pours together. But how would one go about this on a plane layer -- which is a negative ...
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28 views

Can I make PCB panel with PCBs with defined assembly variants in Altium designer?

I have two PCBs that make one system, each PCB have two assembly versions. I need to make PCB panel that contain one of each PCB with right selected version. It is possible to make PCB panel just for ...
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27 views

Altium Footprint has a huge room than the footprint itself

I have a problem regarding footprint clearance or something similar while using Altium 18.1.11. The problem occurred as I designed a Pad with via on it but when I imported it to the PCB doc, the part ...
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27 views

Altium - How to disable white (polygon?) outlines during interactive routing

I seemed to have pressed some hotkey activating a white outline around same layer objects during interactive routing. See image below. It seems to slow down FPS quite a bit, so I'd like to disable it. ...
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1answer
130 views

4-Layer Stackup PCB design

I was designing a 2-Layer PCB and now I'm stuck. I have routed like 80% of all nets and now I'm no more sure if it makes sense to continue. It's getting pretty messed up with all the crossing routes ...
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274 views

PCB power wire routing problem

The whole pcb layout is as the picture below(haven't poured polygon to GND).I hava some puzzlements about power wire routing. My teacher told me if the power wire is placed like a circle or half ...
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How do I add a simulation model to a multi-part component in Altium?

I have a TL072 op-amp as a multi-part (3 parts) in my libarary i.e. 2x op-amps + separate power supply. Now i would like to add TI's spice simulation model. However, I cannot add it, because Altium ...
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1answer
48 views

Removing high impedance ground pours parallel to signal traces in Altium

whenever I route parallel traces on Altium, I get those narrow ground pours between my signal traces when I fill my ground planes. A collegue told me: since these pours are narrow and thus high ...
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29 views

What are the best practicies for a Altium - HFSS workflow?

I'm a relatively new user of HFSS and Altium. I'm trying to find the best iterative workflow but I'm struggling a bit. I have in mind some sort of continuous integration workflow where i change things ...
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17 views

Highlight pads of connected nets when dragging

I recall that Altium has some option that would highlight pads with matching nets on other components when dragging something in the pcb editor. I wasn't able to find the option. Was it removed in ...
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41 views

Polygon not pouring over net tie pads in Altium

I am working with net ties in altium to link different ground signals. My net ties seem to work, no drc error, and I can link traces between them and objects of the same net. If I try to pour a ...
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1answer
39 views

How to add and use “scripts” in Altium

Please go easy on me as I am new to Altium and not much of a software geek - actually have no idea what a script is. Anyway - question is - how do I add a script to Altium Designer, and how do I ...
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1answer
58 views

Using net ties for star ground in Altium

I have been experiencing issues with net ties on altium. I am trying to join my separated analog and digital grounds at a single point (star ground) and I tried creating a net tie component to act as ...
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1answer
49 views

tear drops disappearing during mirroring in altium

I have recently faced a problem...whenever I mirror my pcb by using the shortcut>>M+i all of the tear drops which are defined in my design will be disappeared! does anyone know why this problem ...
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1answer
18 views

Altium: Hierarchical Design not connecting properly?

So I've been meaning to design a board that has many repeated components; basically making the user of the board able to create a state machine with discretely implemented ands for next state logic, ...
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29 views

Altium: All connection lines going to absolute origin

Problem Sometimes all the connection lines go to the "absolute origin" in the PCB layout. It is rare enough that I never remember what sequence I took to get this to happen. In the ...
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2answers
95 views

How should DDR ram layouts at PCB? [closed]

I am designing a board which include DDR3 Ram, AM335x Series MPU. I have a question at this topic. How should it DDR Ram layouts at PCB? Can I draw at top layer? Or which layer the best? I want to ...
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33 views

Altium Designer '21 error: different modal mode selected

I am trying to add a line to my schematic library, but when I do so it says Error: Different modal mode selected. The other properties for pins etc are also not displayed properly. I tried closing the ...
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41 views

Altium 365 - changing the default comment

Recently, our company decided to move to Altium 365 since we are starting a big project where multiple people will be working on a single project. We have a local library that is up to date and used ...
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31 views

About hole diameter size, tin diameter size and solder mask diameter size for pad of through hole components in Altium PCB design

Is there any rule that relate the tin diameter size and solder mask diameter size with the hole diameter size for the pad of through hole components in Altium PCB design?
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44 views

DDR3 Routing Guidelines

I'm trying to design a PCB including DDR3 rams, I don't have much experience and knowledge working with DDR3. What are the most important guidelines to help ensure good signaling for the DDR3 chip? I ...
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2answers
67 views

Why is my Altium gerber file merging component borders with a polygon pour?

I have a pcb design which has two layers with two star ground polygon pours respectively, and all the components are throughhole. When I generate gerber files however, on both layers the border of the ...
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28 views

Altium parameter set

I'm trying to assign Parameter set for one of the DDR3 SDRAM chip pins. For some reason I can't assign parameter to the group of pins. For example, if I do this way, then the program cannot assign ...
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1answer
75 views

PCB Board disappeared in Altium after redefine shape

I tried to change my board size and potentially misclicked as I was redrawing the board. Is there a way to get the board back? I redefined the shape again and it shows up in 2D view but is missing in ...
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2answers
148 views

Minimum spacing between PCB components

I am laying out a 2-layer PCB that has only through hole components, and I need it to be as small as possible. I was wondering how small I can set the clearance rule between the components? When I ...
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1answer
84 views

How to fill a polygon generated by importing a .dxf file to Altium?

I am trying to import a .dxf file to Altium. I was able to import the file, but I could not fill it up with copper trace completely. I tried to draw a polygon to cover it and use 'Explode polygon to ...
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116 views

Celestial Altium Library does not show symbols or footprints

I tried to install the Celestial Altium Library a few days ago. I was hoping for a large library of components that could allow me to quickly build some prototypes from time to time. This is in Altium ...
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78 views

How to keep stiching vias away from text?

To keep automatically stiched vias away ( >=200µm) from tracks, pads, texts on top solder mask and polygon cutout regions on multi-layer, I tried to use a custom query in a seperat clearance rule: ...

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