Questions tagged [altium]

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

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27 views

Why does Altium say this net is uncoupled?

I have some differential pairs in Alitum. They require impedance matching to 100R, which is easy enough. Putting the numbers into Saturn PCB Toolkit V7.08, it works out that I want a conductor width ...
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25 views

Altium Description Item ID change

I am using a library that is located on our company's servers. This library is linked to Altium. After finishing my schematics, I noticed that a description for a type of resistor I was using was ...
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55 views

Altium polygon doesn't pour to vias of same net

I am using Altium 17 and try to make a GND pour. On the GND polygon I want to place some vias to GND polygon. But it doesn't connect GND polygon and GND vias. They belong to exactly same net, GND. I ...
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40 views

Altium - Invisible unrouted nets/components?

I've got a design in Altium and while routing, I moved a few resistors. They somehow accidentally got deleted and wouldn't undelete. I brought them back with an ECO, and placed them where I want them. ...
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42 views

Altium: How to place the pin name inside rectangle in schematic library

How can I make the pin name to be adjacent to the "Active X" mark on the pin? In earlier version of Altium it was default. Here V.17. In V.19 it is the opposite. In order to make the name go inside ...
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29 views

Altium interactive routing strange behaviour

Probably after I pressed by mistake a wrong key while routing, my routing style changed during interactive routing only for one of my projects. The differences I could spot between my "normal" ...
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29 views

When placing a new line it doesn't get assigned a net, how to fix it in Altium?

I had this working well before, but now, every time i'm placing a new line from a component, it never gets assigned the net. In the Net field it is always "No Net", which forces me to manually place ...
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27 views

Switching Top and Bottom Layers in Altium?

I was doing a 4-layer PCB, but after submitting for a quote I realized it would be much cheaper to make a 2-layer board and I didn't really need a 4-layer board for the time being. When I was trying ...
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51 views

How to easily make a ground plane in Altium 19.1

Does anyone have any ideas on how to make a ground plane in Altium 19.1? I have seen some guides but they appear to be in an older version of altium. I am also very new to PCB design and I know next ...
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42 views

Via tenting when solder masking an entire layer on Altium?

I am trying to remove most of the solder mask on my bottom layer so that I can mount a large heat sink on the PCB. I don't have any traces or any components. So what I did was I did a polygon pour on ...
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92 views

PCB trace width

I am trying to design a PCB circuit in altium designer. My circuit consists of one ATmega8a, one NRF24l01 and three magnetic relays (mini relay 12V MPR-S-112-A.) I want to set the trace width to 0....
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64 views

Altium view does not show lower part of PCB

In Altium Designer 16.0, very intermittently, the GUI does not let me navigate towards the lower part of the PCB, somehow freezing the lower part of it, unable to move anything to there, like the ...
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2answers
47 views

Altium IPC Footprint wizard Generating Dodgy Components

I've started using Altium Designer 14 after a break and needed to build some components I started with a EP4CE10 FPGA, but I noticed that despite following the component guidelines as close as ...
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41 views

How can I connect two internal planes together in altium designer?

I am designing an LTC3864 based buck converter and it is recommended in the datasheet to connect the signal ground plane with power ground plane together using a single via (page 24). I could not find ...
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1answer
51 views

Connectors problem to generate NC Drill Files in Altium - access violation error in module OUT_Drill.dll

I have a problem to generate NC Drill Files in Altium. Every time that I try, I receive a message of "access violation". I have discovered that the problem is only with the connectors with holes, ...
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23 views

Component Library Pads Paste Mask do not Update with Design Rules

In Altium Designer 16.0, I just creaated a component .PcbLib with SMT pads, with SolderMaskExpansion of 4mil (letting all the ...
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2answers
52 views

Where is the arrange components inside area button in Altium 19?

Why in the world do people reduce functionality of software when they create a new revision? And why can't people out that two clicks takes more time than one, they've hidden all the buttons in Altium ...
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27 views

Altium how to remove 'ghost' ActiveBoM manufacturer link

While creating manufacturer links for a part in ActiveBoM I added the wrong part to the entry. Normally it's straight forward to remove either with right click or ...
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29 views

Altium database library management - Is it possible to edit same database lib by two people?

We are using Altium database library. But our concern is if an engineer is working on the library then another engineer who needs to add new part in the same database have to wait. Is there a way to ...
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1answer
45 views

Marking 3U board size on a 6U board in Altium

I have an Altium design of a board which is 6U size. I want to mark 3U size on it using some line-drawing. As I don't have hands-on on Altium so struggling to do it. How to know the size in Altium as ...
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32 views

Incorrect gerber rout output in Altium

I tried to get a panelized PCB from Altium using the embedded array option from the PCB Doc file. But, I get a continuous board edge around each of the PCB replicas: it would actually need mouse bites ...
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11 views

Altium | Delphi | Region | Outline Vertices | Coordinates

I am working with Altium DelphiScript and I need to know how I can access to a specific regions coordinates. When I click to a region I can see outline vertices(coordinates) and I want to take this ...
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24 views

Solder Paste and Solder Land in Altium Designer / CircuitStudio

I am designing a footprint for the SOT765-1 using Altium CircuitStudio, and I am a bit confused regarding the solder paste and solder land definitions found on Page 3/5 of this datasheet. For the ...
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36 views

Altium DelphiScript | Region Selecting | Calculating Shortest Path | Calculating Copper Area

I am working on a project and I'm trying to find out if there is a tight spot for current on a flooded plane. There are some obstacles on the surface like vias etc. I decided to write this script step ...
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1answer
49 views

Altium Trace, Silkscreen not solid ie only showing outline

Whilst working with Room Copy key command (D-M-C) I have inadvertently changed something which has resulted in my traces and overlays showing as their outline only. Does anyone know what I've done to ...
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66 views

Altium: “Net [] contains floating input pins”, but they seem to be connected

Altium (19.0.10) says the following nets contain floating input pins: CLR DIN LATCH SCLK But they seem connected (and on grid) to me (see below). Earlier they were directly connected, no luck. I ...
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50 views

Polygon Strategy

I'm working at a project. Pcb of this project has four layers. And I'm wondering about polygon strategies. Me and my team decided to split polygons. For example at top layer, half side of top layer ...
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4answers
100 views

Can a PCB footprint be extracted from a solid model?

I usually just make a PCB footprint if I need it (Solidworks PCB, Altium, Protel99, OrCAD, etc). I'm an electrical engineer. I've seen very nice 3D solid models for some parts and I wonder if the PCB ...
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1answer
64 views

Excellon NC drill files from Altium

How to generate an Excellon NC drill file from Altium, as my PCB manufacturer does not require a cam file. The NC drill file generated from Altium is a .CAM file, whereas, my PCB manufacturer requires ...
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32 views

Altium: escape from “Top layer (flipped)” view

While I was using Altium Designer 19, I somehow managed to mirror the PCB across the Y axis, so now I am in view mode "Top layer (flipped)". How can I get back to normal view?
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99 views

Can't update my schematic to PCB layout in Altium

I have finished my schematic for an echo circuit using PT2399 IC as per the application circuit in datasheet. I have downloaded the part (including footprint) from snapeda.com and updated my Altium ...
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28 views

Custom Pad with plated in Altium

I need to create a footprint for this USB connector(https://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/12401831.pdf). I have dificulties to create a custom through hole pads with plate for the ...
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36 views

Work around for lack of Multichannel design (two-dimensional) bus support in Altium Designer

So Altium Designer still does not have support for multi-dimensional buses and repeat statements. The repeat blocks can be used to do some very cool things, but the only work-around I've found is to ...
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2answers
39 views

How to do a cut in the middle of the polygon on Altium Designer 19?

I'm wondering how to do a cut in the middle of the polygon using the Altium. It seems it has the tools just for making the cutouts and splitting the planes, but not making the cuttlines in the middle ...
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90 views

Altium Designer 19.1.5: very dark 3D preview, black footprints

Anyone facing the same issue? How this could be fixed? Tried to do a clean install, but it doesn't help. I'm on Windows 10 with all the recent updates.
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53 views

Altium - Handling Multiple net names for buses

I'm confused on how to solve this warning on Altium. ...
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1answer
65 views

Differential pair using vias Altium

Para los que no saben ver imágenes How can I make one track of the differential pair jump to the bottom layer while the other track stays in top layer ? Currently I only know that when using ...
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1answer
35 views

Altium Gerber Top Paste is missing components

I just finished the design of my board on Altium, and when I generate the Gerber files, everything seems correct except for the Top Paste File, looks like some components are missing on this file. Any ...
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55 views

Altium designer 19 short-circuit constraint question

I am keeping get the DRC about the short-circuit constraint. I uploaded the picture of the settings. I double clicked the pad and trace. They are all on the same net "Vsys". And there is no other ...
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2answers
103 views

How to import PCB 3D model (step file) designed in MCAD software in Altium and place PCB footprints, and route it?

I have my PCB board from Mechanical Design software as a Step file. Now, I want to import it into Altium Designer and place PCB footprints, and do the routing etc. I am looking for some guidelines or ...
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1answer
68 views

Manually place a few vias in Altium

I placed a few vias manually. I get "Un-Routed Net Constraint." How can I fix that?
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48 views

DUE schematic doubt Altium

I have the schematic of Arduino DUE for EAGLE software, I found a part I dont know what means for Altium Software. Can somebody tell me what is it "ETH" ? A header?? Arduino Due schematic I found ...
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155 views

Altium Properties Panel Missing?

I was wondering if anyone had ever encountered the case where Altium's properties panel is completely missing. In my case for both schematic edit and PCB footprint edit, I can't find the properties ...
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27 views

Altium: how to export netlist with net class data from Altium?

I am testing Altium for some simple electrical harness design. Now I am trying to generate a report for manual wiring and would like to have typical netlist data (nets and pins) together with net ...
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2answers
63 views

What is this symbol in Eagle and equivalent for altium

I only use Altium Designer. Today I found an arduino due schematic for Eagle PCB Design Software and I saw a symbol I don't know. What is it, and what is the equivalent in Altium Designer? Is it a ...
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106 views

Altium - short-circuit between pad and poly-region with same net

I draw a grounded trace BLE Antenna. One pad has the GND Net and the second pad is ANT Net Here is the error: Class Document Source Message Time Date No. [Short-Circuit Constraint ...
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32 views

Altium - broken unconnected nets

I am having trouble figuring out what is wrong with these nets? "Design -> Netlist -> Clear all nets" will delete only the functional ones and these unconnected ones remain. Can anyone tell me what ...
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55 views

Altium: Repeating SPI/I2C Blocks

What is the proper way of repeating I2C/SPI blocks? Since we know in the case of SPI blocks, MISO, MOSI & SCK must all be tied together in a single bus for communication to happen. I have read ...
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49 views

Altium Designer 19 mixed simulation

I'm trying to plot a current vs. resistance graph using mixed simulation in Altium Designer 19.1.5. I'm having a problem creating the variables and plots which are not against time. It would be very ...
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37 views

Altium: rotate schematic symbol while keeping wires attached

I'm new to Altium. Mostly impressed, but it has some very odd behaviors. When rotating a part in the schematic, the wires don't stay attached, which is very unexpected behavior... and dangerous as ...