Questions tagged [altium]

Altium is integrated schematic capture and PCB design software.

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How to center two pads in Altium?

How to center two pads in Altium? I usually drag the component pads to perfectly center it but is there any better way to do this; any shortcut?
Monesh Rathod's user avatar
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Altium Designer 24: directives on schematic, yet "No differential pairs in design" error when routing

I want to create an USB differential pair. I added the nets, name equally but changing P and N as the image shows: SCH to PCB has been updated. Project comparator is enabled. No differential pair ...
Gonzalo García's user avatar
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I am not able to see trace attached to component while dragging component in Altium

While dragging the component in Altium, I cannot see a trace attached to the component. I checked all the settings, I even reset all settings but it is still not working. Can anyone help me? I want ...
Monesh Rathod's user avatar
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Altium CircuitMaker - Polygon Pour issue - Does not apper

I impored a model from Altium Designer into Altium CircuitMaker. When I updated my Polygon Pour, then the total orange area (GND plane) disappear. But it's still ...
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In Altium (Version 24.1.2) how do you create global netlabels? [closed]

When I google this, it asks me to locate the "Scope" tab under "Properties" but there is none. Since Altium keeps moving around options to different menus how do I find this "...
Electrolyte's user avatar
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Pin swapping within same part in Altium?

Let's consider this level shifter. I can swap any pair Ax->Bx. In Altium if I add pin 10..13 in group 1 and pin 2..5 in group 2, I cannot ensure continuity between my nets. For instance if pin 10&...
nowox's user avatar
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Differential pairs-length match- Altium designer- cross talk

I'm routing LVDS and I wonder how much gap should I consider in between different pairs to not have any cross talk issue? (frequency=1 GHz)
Andromeda's user avatar
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Altium designer-PCB design- Keep-out layer

I have a board and I want to reshape the board, I draw the keep out layer first as follows: Then when I reshape the PCB, I see a thick green line around the board, but I expect to see a pink line (...
Andromeda's user avatar
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Switching to Compiled Tab

I have a project that has number of Variants with many schematic pages. Is there any way to make Altium switch all of the schematic pages to their "compiled Tab" to show the specified ...
shmueld's user avatar
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Raspberry PI CM4 carrier board with Altium : multiple footprint?

I'm currently designing a carrier board for the Raspberry Pi CM4 that physically includes: 1 Compute Module 2 DF40HC connectors 4 Steel standoffs I've encountered a dilemma in generating assembly ...
nowox's user avatar
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How do I import 3D footprints into Altium CircuitMaker?

I need to create my own part, so therefore I need to import a pre-made footprint and 3D-model. I have the model in .step, .wrl, .iges etc... https://www.st.com/en/microcontrollers-microprocessors/...
euraad's user avatar
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Implementing guard trace/ring in PCB design for opamp having high impedance input

In the circuit below I am trying to create a "guard ring" for the opamp with high input impedance (~1T Ohm) to avoid femtoampere current leakage. I'd like to ask you guys if I did it right. ...
Phạm Sáng's user avatar
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ESP32 Schematic and PCB Design using Altium

Please review my schematic and PCB design. Purpose of the board is to reduce the current consumption of ESP32. I have used RT9080 voltage regulator. Board is powered either by USB or by battery (4.2V)....
Umar 's user avatar
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Smoothing arc shape in Altium

I was not able to find this topic on any official Altium documentation so maybe any of you could help me out. I have imported from other CAD tool bunch of outline shapes for NLP lines and I want to ...
ABC's user avatar
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In Altium, how do I create mounting holes for a through hole transistor? [closed]

I am starting to learn Altium and I don't know how to create a through hole footprint. How do I get started on this? https://www.mouser.com/ProductDetail/Diotec-Semiconductor/BC337-40?qs=...
Max Cycles's user avatar
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Question about a jack part and how to wire it in Altium?

I am trying to understand these part labels, "tip", "sleeve" and "ring." I want to route one pin to ground in Altium and the one pin for the left audio and another pin ...
Electrolyte's user avatar
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How to Repeat a sheet entry that is connected internally to a BUS

In Altium Schematic Design, I have a circuit (CER1) in a sheet, and I use a BUS to connect multiple channels. In the parent schematic, I created a sheet symbol from the CER1 sheet. And since I needed ...
Bakr Hesham's user avatar
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3 answers
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How does one connect a DPDT Push switch?

I am using a MHPS2273 DPDT push button in my design. The purpose of this switch is to turn ON the device when I press the button. If I again press the button it will turn OFF the device. I am confused ...
Kuralmozhi's user avatar
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1 answer
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How can autorouting be done in Altium CircuitMaker?

I need to do autorouting in Altium CircuitMaker. I have only found information how to do autorouting in Altium Designer. What I need to know is to set up rules and enviroment for autorouting with the ...
euraad's user avatar
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How to tune in the right DRC rule for BGA footprint - Altium CircuitMaker

According to JLCPCB, they write that their capability for the clearance between SMD pad and track is 0.2mm. 0.2mm is 7.87401575mil. If we look at a GBA processor with 0.8mm pitch. Due to the 0.2mm ...
euraad's user avatar
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Altium - Lock bordering rectangle in schemtic

I like to place a border rectangle around sub-sections of a circuit on a single sheet to clearly show each separate function of the circuit. Problem is if I try to move something within that border I ...
user120300's user avatar
1 vote
1 answer
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Altium issue - routing a trace does not dim other nets

I have an issue with Altium (Version 2023, perpetual), that when I route a trace with the "Interactive Route Connection" feature, other components are not dimmed and so it is hard to see ...
HansPeterLoft's user avatar
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How to set the Altium PDF preview command line

Using Altium 18.1 When outputting jobs, for example the schematic, Altium invokes the PDF reader. But it passes to the reader (Foxit Reader in my case) also some command line switch that Foxit Reader ...
linuxfan says Reinstate Monica's user avatar
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Altium Top Paste not fully poured

In the picture below, Top Paste's 3 of 4 FETs is not poured well. I can't see the reason for this. Any suggestions?
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How to see schematic error in Altium?

In the Altium PCB view, we can check this kind of error with ALT+Right Click Twice But in the Altium Schematic view, I am not able to do the same. Is there any other shortcut to this?
Monesh Rathod's user avatar
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Same hierarchical block for different power supplies in Altium Designer

I need to repeat one circuit in my design but connecting it to different power supplies. Because it is a repetition (iteration) I have decided to use a hierarchical block and copy it 3 times. The ...
Developing Electronics's user avatar
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Iterating custom parameters for Schlib library component in vbs

I have problem iterating through custom parameters for a component in Schlib library. I use SchLibIterator_Create method to get components. And I can get next component with Set LibComp = ...
Zeljko's user avatar
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3V3 to a Teensy 4.0 pin 4 (BCLK2) for servo PCB troubleshoot

This project interfaces a servo to the teensy 4.0 through a bidirectional voltage level converter. The schematic shows the servo to run on 5V using an encoder. I dont understand why the 3.3V pin on ...
9_daytona's user avatar
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Channel Offset lost count in multichannel Design Altium

I was working on a multichannel design in Altium where a certain circuit is copied multiple times using room copy. Everything was fine until I modified the schematic by removing some parts and adding ...
Eng Sam's user avatar
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How to find an already placed schematic symbol in Altium schematic

I have a large multi-sheet schematic in Altium, which uses the multi-part schematic symbol for an LS1046 CPU. This part has 15+ components, which across the multiple sheets of the schematic are hard ...
Mauvai's user avatar
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PCB design: How small can vias be made?

Working with very limited space (In Altium) and need to place vias to make routes between the red solder castellation plates on the top layer to the respective connector pins on the bottom layer, both ...
eutectic_codswallop's user avatar
1 vote
2 answers
69 views

Altium: Is it okay to waive this constraint violation between two elements of the same electrical component?

All of my electrical components are listed as having such clearance constraint violations when I open the PCB Rules and Violations window. I have tried lowering the minimum clearance from 0.254 mm to ...
eutectic_codswallop's user avatar
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Out of Board error - DRC Altium Designer

I can understand the error as some design objects are out of the boards defined bounds. Is this error a very general notification informing the designer that the whole PCB is to be reviewed and other ...
9_daytona's user avatar
1 vote
1 answer
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How could I get the footprint name in Altium?

I am creating a component in such a way that in the schematic file it would be possible to change the footprint, and the component parameter "Package" will be updated. I tried to put "=...
arlen's user avatar
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Errors in Schematic made in Altium Designer

I am using Altium Designer as ECAD tool for first time to create the schematics. There are few errors which are popping up and I don't know how to get rid of those errors. First one is regarding HI ...
Alison's user avatar
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Altium duplicate Silkscreen between projects

I have one project on Altium in 2 different versions (version control is out of the scope of this question). I worked on the silkscreen in one version (let's say v1) and I would like to update the v2 ...
Clem's user avatar
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Altium jump from component in PCB editor to schematic

Is there a way to highlight a component in the Altium PCB designer and then jump to its location in the schematic editor? I have a hierarchical schematic so it can be a pain to have to search through ...
17jgibb's user avatar
2 votes
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103 views

Why are solder pad layouts in datasheets always drawn up so unintuitively?

I am making a PCB that is using parts that require me to draw up custom footprints. So far, all the parts I've come across have the most seemingly stupid selection of measurements for pads. Take this ...
ezra_vdj's user avatar
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How can I automate add solution and prioritize supplier for all my components in Altium ActiveBOM?

I am trying to learn Altium. I have made a schematic with about 70 components and turned that into a PCB. Now I would like to order the parts and want to create a BOM with supplier info so I can order ...
Thomasx's user avatar
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Is this schematic for a DWM3000 Breakout PCB designed correctly?

Is my schematic for a DWM3000 breakout PCB (made in Altium) designed correctly? I have it connected to a TSM 2.54mm connector. I only intend to use the functions I have connected to the TSM. Any ...
eutectic_codswallop's user avatar
3 votes
2 answers
780 views

Why can't I connect my ground

This is my first time using Altium and my first time designing a PCB. I'm following a Phil's Lab tutorial where he's building an STM32 PCB but I'm having trouble connecting the grounds on my STM32 ...
Matthew Nguyen's user avatar
1 vote
1 answer
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Altium - Back Annotating (PCB -> Schematic)

I have a project that was converted from PCAD to Altium. The PCB layout looks great in terms of component placement, tracks, polygons, etc. A colleague went through and created a bunch of schematic ...
RogerDodger's user avatar
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2 answers
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How to link GND vias to the GND plane

I know that it's possible for the GND vias to connect to the GND signal layer in a 4 layer stack. How do I achieve this?
9_daytona's user avatar
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2 answers
44 views

How to reset the copper after removing vias in Altium Designer

How do I reset the copper plane after removing vias and traces?
9_daytona's user avatar
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1 answer
47 views

How do I change minimum anular ring in vias for different layers in Altium?

I want to send my gerbers to a PCB manufacturer but its manufacturing capabilities force diferrent minimum anular ring for vias in different layers. For outer layers, its 0.13 mm and for internal ...
Developing Electronics's user avatar
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How to download .CMPcbdoc and .CMSchdoc file from Altium CircuitMaker onto computer

On Altium CircuitMaker, all the project files are stored in some online server. I want to download specifically the .CMSchdoc and .CMPcbdoc them onto my laptop for local storage. Is this possible? If ...
Vagabond4761's user avatar
1 vote
2 answers
41 views

Altium Designer 24 DRC error symbols meaning

I was wondering if anyone could help me understanding the DRC Net Antennae: via errors that look like lollipops. I've read that the double lines are related to un-routed net constraints.
9_daytona's user avatar
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2 answers
64 views

FT2232H PCB routing (high speed)

This is the first time I am making a high speed PCB so I am a bit unconfident. the ic I am talking about is this: FTDI232H I have followed the schematic in the datasheet above and I have placed the ...
cr1tical1's user avatar
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Puzzling Altium Violation (Beginner): Net Antennae

I've recently run into a puzzling violation in Altium. My project has many issues admittedly, as you'll no doubt notice from the figures I've attached, but I'm trying to go one at a time here. ...
Numero7's user avatar
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Altium - Complex keepout shapes in Footprint Editor

Is there a good way to create complex keepout shapes in the footprint editor in Altium designer? I'm attempting to create a large keepout that needs to be everywhere except two pads shown (to avoid ...
Adrian Ramirez's user avatar

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