Questions tagged [altium]

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

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24 views

Is there a way to place all parts of a connector at once in Altium?

I have a part with 50 pins and currently it only allows me to place one pin at a time. Is there a way to do that quicker? Currently I have to place one pin and then right click it to change it to part ...
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25 views

Altium 20 Deleting Rules

I have Altium 20.0.11. My rules keep getting deleted when I update from the schematic. Any rule I set in the PCB gets removed when I perform an update from the schematic. This the only project I ...
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1answer
42 views

DDR3 skew matching for microstrip and striplines

I am designing DDR3 pcb first time so I started from guide about pcb design: https://www.youtube.com/watch?v=ZNq_Ulm8cTk#t=32m As I understand using only stripline ...
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2answers
29 views

Wires not Snapping to Pins on Component in Altium 19

I updated my PCB Document based on my schematics and noticed a few nets were missing between components. For example, my current limiting resistor doesn't have a visible net to my LED. So I went back ...
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1answer
40 views

How do I change the dimensions of a PCB in Altium Designer 19.1 using by entering the value I want the dimension to be?

How do I change the dimensions of a PCB in Altium Designer 19.1 using by entering the value I want the dimension to be? Please for the love of 555 DO NOT tell me how to edit the size using the mouse ...
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23 views

Altium Designer component designators disapeared in PCB editor

I was editing my PCB in Altium when all the values of all the component designators disappeared. None of the components have any titles or values they're just red block with pads. How do I make the ...
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24 views

Single schematic split to multiple PCB in Altium?

I'm wondering if it is possible to have a single schematic that can create multiple PCBs. I'm aware of the multi board capability, however this seems to use multiple schematics to create the ...
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13 views

Promoting a sub-sheet with variants up the hierarchy in Altium

Let's suppose I have three sheets, Connector1.schdoc, Connector2.schdoc, and Connector3.schdoc. Each sheet has an instance of the sub-sheet InputFilter.schdoc, which has something simple like an RC ...
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2answers
76 views

Are all the DIP-16 packages the same for PCB library design?

I am designing PCB library for a component whose Package is DIP-16. I have already footprint of this Package in other components. Can I use them interchangeably in the new component in terms of their ...
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18 views

how to import mentor pcb file into Altium Designer

I have one PCB file downloaded from the Internet. I want to use the PCB file on Altium. As the Schematic file is DSN, I think this PCB is a Mentor PCB file. File Extension is *.pcb. I tried to import ...
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16 views

Altium Draftsman Error: Layer Stack Legend

I'm having an issue on Altium Draftsman where I can't insert the Layer Stack Legend from the Layer Stack on the PCB. I'm getting the following error when I try to insert the stack into the template. I ...
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25 views

Altium Designer Libary Ref Field Missing

I'm trying to create a MySQL database for my Altium company library. I've created a MySQL database with utf16 encoding that contains tables for each category of components. Here is an example table: <...
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1answer
25 views

Altium Design, can't change track width

I have hit 3 while tracing, I have hit shift w to open my favorites and it shows me favorites, but for some reason the program will not change the width of traces. It is stuck at 10mil. Anyone know ...
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21 views

Connecting altium busses with different width

I have 3 busses in the project: ADC[16..1], BUSA[8..1], BUSB[8..1], I would like to ...
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28 views

Manufacturer part search in altium

Object reference not set to an instance of an object error in Altium , this error show when i place component from same search option.
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1answer
33 views

Updating all components from a schematic library to schematic sheets with Altium instead of individually?

As title suggests just wondering if there's a way to do this, like specially in case if I ever import this library to another project and want to update all my schematic components rather than having ...
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48 views

Altium symbols/footprints for components with multiple physical parts

What is the best way to build/use Altium (or other software) parts that have multiple physical pieces. This could be multiple footprints that work as a set, it could be multiple MPNs that form an ...
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62 views

Manage clearence trough schematic in Altium Designer

I have a multilevel project to measure different potentials and current. This is done by opto isolated amplifier. The design is similar to the image: The sheet is reused in upper sheets multiple ...
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37 views

How to adjust PCIE signals using Hyperlynx S- Parameter report?

I’m using Hyperlynx (MentorGraphic) for Signal Integrity test for PCIE GEN 1 Tx Rx & Clk signals. I imported Altium designed layout file to Hyperlynx. These signals (Tx, Rx, Clk) don’t pass S – ...
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2answers
95 views

How to draw spiral in altium designer?

I need to draw this pinwheel antenna pattern in altium designer. But I have no idea how to do it (drawing spirals) with altium equipments. Do you have any suggestion?
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1answer
21 views

Altium: Pouring Polygon attached to a specific net class for direct connections

I've got multiple polygons on this board I'm laying out. Some want to have direct connetsions to pads and others not. I was originally adding lots of nets to my rules to allow for direct connections ...
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54 views

PCB layout - part placement note in draftsman drawing

I am preparing to transfer a schematic project to a layout person. I'd like to include a note in a draftsman drawing detailing an area where a component must go on the PCB to avoid interference from ...
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1answer
23 views

Altium Desinger: Collect harness instances into bus

I'm working on a larger project involving Altium Designer 13 and Multi Level Design. The problem: I have numerous instance of the same Harness and I want to collect them into same bus and output them ...
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1answer
52 views

Altium Grid Ends?

I am trying to edit the shape of my board in Altium, and I have found that the grid simply stops at the current board edge. I can make the board smaller, but not bigger. The cursor simply won't move ...
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40 views

Component Height - Altium Designer

I'm using Altium Designer version 14.2. I am making a thermal analysis. The Analyze program expects a ODB++ format input from me. When I convert my PCB to ODB++, I can't see any height information ...
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1answer
55 views

Altium: Export/Package Read-Only PCB or Project

I'm looking to export an altium PCB or full project but would like it to be "read-only" so that whomever I'm sending it to cannot edit it without my knowledge. They're looking to do a more in-depth ...
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1answer
87 views

How to specify a via should be plugged to prevent solder wicking?

I have a 0.167mm diameter via under a BGA component to provide ground connections to two adjacent pads (ENIG-finish PCB). Our PCB fab house recommended that we plug the via to prevent solder from ...
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1answer
59 views

Altium Annotate Schematic Problem

Altium is driving me crazy right now. I Annotate my schematic, but I do not know why Altium wants to always switch / exchange U109 sub-parts. RC4558 op-amp. I put them in one order and Altium changes ...
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1answer
81 views

Altium PCB Editor Room “stealing” tracks from other rooms

This question is in regards to the PCB editor of Altium Nexsus 2.1.7. When moving a routed room (A) over another routed room (B) and then moving the room A again (I.e. pausing over room B by ...
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1answer
75 views

HDMI splitter @ 4K [closed]

I want to make HDMI splitter which support 4K resolution, I have already found some IC's which are cable for splitting HDMI, but unfortunately non of them supported 4K and they only supported 1080P/...
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2answers
56 views

Is it possible to generate a list of all Net names in Altium Designer

If I have a schematics in Altium Designer and it is spread over 10 sheets then is it possible to generate a list of all net names that are used in it? How can I generate this list? I want to do this ...
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25 views

Ctrl+Right Arrow shifting component left in altium layout

After doing flip and rotation of entire board, I see Ctrl+Right Arrow shifting component left, this is not normal as per specified Altium Short key. Please help me to solve this issue ?
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2answers
121 views

Altium - Linking Sheet Entries/Ports with Net Labels

I am struggling to find a way to get the compiler in Altium to see a Sheet Entry/Port (tried with both) and a net label on the same sheet to link. This redacted schematic page shows what I have (this ...
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1answer
47 views

Assign existing footprint to existing component in Circuit Maker?

I found the following two components in Circuit Studio that I am using in my design: AOD407: And IRLR8726: The manufacturer recommended footprint is exactly the same for both, and they use the same ...
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1answer
65 views

How to make polygons smoother

I am designing a board using Altium Design 18.1 and I have just poured this GND polygon and it looks so roughly is there any way to make it smoother?
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2answers
65 views

How to remove schematic reference information in Altium Designer?

I want to remove the schematic reference information for a pcb component. How is it possible? To clarify I do not mean reference designators 'R1', 'R2', 'C7' and 'IC1' for example but part ...
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1answer
21 views

Changing Polygon clearnce in Altium

I need to change the polygon clearance. Here are my setting rules. But it seems that the lower rule for all clearances is superior to the second one and nothing has been changed. what is my mistake ...
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1answer
81 views

Altium PCB design [duplicate]

I designed a schematic diagram to design a PCB. But when I want to update the PCB from the schematic, there are several errors. I can't determine the problem.
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29 views

how to pause/stop spice simulation in Altium Designer?

I am trying to simulate a circuit with Altium Designer. My simulation takes very long time, and I need to tweak the circuit frequently. Although I am able to stop/pause on-going simulation in LTSpice ...
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1answer
40 views

Altium Component Device “Technology”

I am trying to design a component in Altium that has different orderable variants. For example, my component takes the orderable code XYZ-AAA where ...
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1answer
30 views

Avoiding collisions with SMD components in Altium

I am trying to make a circular PCB board with 50 parallel lines of 4 LEDs in series and I am getting collisions errors on some parts on my board. This is my first altium project so I am not sure how ...
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1answer
96 views

Altium castellated cut outs

I have some trouble to design castellated cut outs for a pad, at least there is always thin copper area you can see in the pictures below. How can I get rid of this?
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2answers
68 views

How to determine vias and through holes from 4-layer Gerber files

I'm trying to understand the difference between the vias and plated through-holes in these reference Gerber files. On layer 3, I don't understand why there are so many holes (vias)?. Why are some ...
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2answers
39 views

Windows limitation in PCB window in Altium

Is there any window limitation in PCB window in Altium? because I can't move my mouse cursor -180.086 on the x-axis.
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1answer
56 views

Micro USB B Pick-n-Place info

Altium Designer exports Pick-n-Place coordinates for a micro USB-B connector as geometric center of signal layers (top and bottom) area (other layers do not affect the coordinates) (a yellow mark on ...
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1answer
54 views

Altium: Vias not showing annular ring

I have vias connected to the polygon. In the old design (left pic) the vias have annular rings. But I modified few other things in the PCB. I removed unused vias in both new and old design. But now in ...
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2answers
48 views

Can't delete a rigid/flex substack from altium 19

so I've recently been learning altium and I'm one of those learners who tends to click things to see what they do and then figure out how to undo it afterwards. Unfortunately I've now run into a ...
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3answers
612 views

How to calculate the size of ground plane we need to use in a PCB (printed circuit board) design [closed]

I searched about the ground plane and found out the ground plane is a good solution to reduce noise and get a seamless ground. How do I calculate the size of the ground plane for a PCB? When and ...
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0answers
32 views

Missing Channel Offset in Sequence 0 Source Room:X Target Room:Y in altium

I just followed this Page for a simple project but I get Missing Channel Offset in Sequence 0 Source Room:X Target Room:Y in Altium error. I have set/checked all the components channel offsets,...
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15 views

Multi-channel duplication error in altium

I designed a multi-channel schematic and I routed one of them. However, by clicking "Copy Room Formats " I see this error that it didn't do much as expected ( it doesn't route anything). Thanks

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