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Questions tagged [altium]

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

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24 views

Add OpAmp subcircuit spice model to Altium

I want to add SPICE OpAmp model of Analog devices by .cir extension containing .SUBCKT information to Altium. I have it's schematic but I don't know how to add it's simulation file to it. I have ...
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1answer
27 views

Altium Designer “NotFited” in BOM with DNP

I heve problem with Altium BOM document generation. I want have multi variants of one project with some DNP elements. It's no problem if I want remove elements from BOM, for this I can add variants ...
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1answer
15 views

Create specific area in Altium 15 with smaller trace width/clearance rule

I'm currently doing the fanout for a ~500 Pin FPGA. To keep the layer count of the PCB low, I'd like to lower the clearance/track width in the area of the FPGA in order to route traces between the ...
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1answer
35 views

Altium Designer: mixed mechanical layers on Top and Bottom Layer Pair

I have a multilayer board I'm working with. To ease placement and routing, I created some layer pairs and two Layer Set (TOPSet, BottomSet) and then I clicked on hide/show button to assign meaningful ...
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2answers
94 views

Can a via be placed in between the pads of a resistor?

Can I place a via in between the pads of a resistor as shown in the image?
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1answer
31 views

Altium : components don't moves with thier room anymore

I have a design with several rooms in it. I did a part of the routing and I don't know what I did but now when I move a room, the components don't move with it. I found something in the documentation ...
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2answers
44 views

Grid Mismatch in Altium

I have some custom components built. Some of the components are showing as off-grid in schematic. I am attaching the screenshot of the component designer and schematic designer. Can someone please ...
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1answer
39 views

Why do I get “Supplier Disabled” in my Altium BOM

I am trying to generate a BOM of my Altium project so that I can send it to the procurement people. However, strangely when I go into Reports > ...
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0answers
21 views

Altium DRC to catch via on plane split

I had a recent design flagged from the PCB house because of a via that almost didn't connect to the power plane it should have, due to its placement on a split line (see below). I want to add a ...
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1answer
45 views

extract technical drawing from pdf into altium

I have a PDF containing a diagram of a PCB which I intend to include in my system. Unfortunately while some dimensions are indicated on this pdf others are not. I would like to import this diagram ...
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0answers
23 views

Altium error: class already exist: designator

I got trouble updating my schematics to pcb - there is an error " class already exist: designator", and its all happen because I got 3 same component classes called "Designator". The problem is that ...
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1answer
31 views

Keep old reference designators when copying a schematic sheet into Altium

We have a pair of designs with Altium that are very similar; one board is a cut down versin of the other essentially. We want to import schematic sheets into the new, cut down version from the old ...
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39 views

Altium 18 - Show route tool path in 3d layout mode

I want a 3d view of the route tool path in Altium designer. I created a rout tool path using: Design » Board Shape » Create Primitives From Board Shape But when i define my route tool path layer, ...
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1answer
18 views

altium TI webbench, populate footprint in schematic

I have exported a design from Ti webbench in Altium format. I have used "project-component links" to link up the schematic and PCB. The PCB has footprints set but the schematic does not which causes ...
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4answers
63 views

Can Altium Designer 17 Generate Missing Paste Mask Layers?

I recently ordered three proto PCBs from a small PCB company. This board house produces Gerber files in-house from their proprietary PCB layout files, and provides this Gerber set to the user on ...
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2answers
46 views

Altium 18 PCB Filter Select X *except* if Y

I'm trying to create a PCB filter that will allow me to select everything on the board except for components that have an 0402 or 0603 package size. We have a parameter in our passive parts called "...
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1answer
37 views

Altium 17 somehow lost shortcuts, I cannot rotate a part with the spacebar

In both the schematic and PCB I can no longer rotate a part 90 degrees by hitting the space bar. I have tried lots of things, but getting to the context-sensitive help with ctrl-F1 also does not work....
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1answer
42 views

Altium 18 - Pad on board edge in 3D-VIEW/3D-PDF

Is there a way to show a half cut plated-hole/pad in 3D-VIEW/3D-PDF on the PCB edge with the board-outline?
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1answer
53 views

Where to find parameters of a component in Altium Designer [closed]

Where can I find the parameters of a selected component in the schematic editor?
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1answer
40 views

Altium: Script to add all symbols to a schematic?

Does somebody knows a script which puts all the symbols in a library ([optional]: with every footprint added to it) to a schematic? Would be handy to look over libraries, but unfortunately Altium don'...
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2answers
140 views

PCB Reverse engineering in ALTIUM

I have to redo a schematic for a PCB. I have a paper version of the schematic, the Gerber file of the PCB and the PCB in a CADSTAR project but not the schematic. I'm using Altium and wanted to know if ...
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1answer
39 views

Altium Designer: How can you extract single members of a Harness?

For better readability of the schematics I wanted to do something like in this image(Distributing the I2C-bus): But I get "Conflicting Harness Definition for COM-IF" as a compile error. Am I doing ...
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3answers
88 views

Altium assign one pin to multiple pads?

I am using a P Mosfet in the schematic, pin 1, 2, 5, 6 are all connected together. How is this done in altium?
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3answers
47 views

Altium: multiple component footprints for the same component on the PCB

The question is one, but revolves about: component definition in the library placement between the schematic and the PCB document so that they remain synced proper Net definitions and avoid errors ...
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1answer
56 views

Two capacitors of same value connected in series and connected to power supply instead of one capacitor of equivalent value for PCB design

what's the purpose of two capacitors of same value connected in series and connected to power supply instead of one capacitor of equivalent value for PCB design especially for Automotive applications
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2answers
79 views

Altium Designer IPC Footprint wizard error for chip components

It is the first time I am designing a PCB with surface mount components. I am trying to generate footprints for 0805 resistors and capacitors, and 1210 capacitors using the IPC footprint wizard which ...
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1answer
63 views

Altium 17 hatched polygon problem

I'm currently designing a PCB and I need to use hatched polygons in order to get my PCB produced (my manufacturer accepts only hatched polygons). The problem is the following: in only one of the ...
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0answers
33 views

Altium: Via stitching not connecting to plane?

I'm experiencing an issue in altium where my Via stitching vias on the GND net will not connect to my ground plane. Individually placed vias will connect fine through from the top layer polygon GND ...
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2answers
44 views

Altium Polygon pour

I am designing a PCB in Altium. I finished my routing and proceeded to Polygon pour for Gnd plane. I was surprised to find the pour in between my 0805 caps pads as well. Although, I don't have a top ...
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2answers
41 views

edit component in *.intlib library

I have a previously used a resistor component in my project that originated from an *.intlib library. Now I want to use an alternate footprint. However, I cannot access the .schlib file of the ...
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2answers
49 views

How can I attach the same footprint to subparts of the same IC in Altium?

I have two sub parts of the same IC (STM32L476RG). I have added these sub parts as two components in the same schematic library and have attached the same footprints for both of them. But when I ...
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0answers
34 views

Accidentally Pasted Beyond Origin in Altium

I'm new in Altium and I accidentally pasted some pads and components(the ones at the bottom corner) from another pcb file but I wasn't aware of it at first because it didn't show on the sheet on the ...
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1answer
24 views

Altium “Where Used” search in multiple projects

Our design repo has multiple projects (SVN controlled) and we use an on-site library of parts. I'm looking for a way to search all of our projects for instances of a specific part. The intent is to ...
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1answer
73 views

Smd footprint Altium

I'm trying to make the footprint of a smd resistor. But when I place the resistor on pcb layout and flip it, the pads go on bottom layer but the body remains on top layer, viewing from 3D mode. ...
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2answers
165 views

Can you put a curved slot in PCB in Altium 18?

I am trying to put a curved slot in a PCB in Altium 18. This is to give a blanking panel on the PCB which we can "pop-out". As the hole we're trying to blank out is circular, I need this slot to be ...
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2answers
81 views

Altium part library management

We recently got licenses for Altium for the teachers and students alike. One question that was raised is the management of the part library. Two options are currently considered. We only have the ...
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1answer
40 views

altium layers all black [duplicate]

I have an Altium display on the PCB editor which shows all layers but the one selected as black. I have tried ctrl-s, the mask level and clear. Nothing seems to help. Any other suggestions?
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1answer
91 views

In Altium Why My Square slot is shown round in Gerber?

In Altium I have created a square slot in PCB then I create the gerber files. In CAM, file's square slot is shown as round shape. Can anyone explain why? Also I have enabled the G85 command.
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2answers
83 views

Proper convention for schematic component pin input/output arrows

In a schematic, if a designer chooses to use arrows on pins of a component, should they always point in the direction of current, or in the "perceived direction" of the signal? Or this a made-up ...
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0answers
77 views

Creepage Distance in Altium Designer

I have a design with a high voltage and a low voltage part. Between the two I need to have a creepage distance of 8mm. Some optoisolators I use in my design are not wide enough on the PCB footprint, ...
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1answer
46 views

Library management in altium

I am coming from Eagle background where there is a common library file that you use across all projects. Taking an example of a capacitor - I design one generic capacitor symbol, add multiple packages ...
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1answer
74 views

Pad 'Electrical Type' in Altium

When create footprint in Altium, we can set the 'Electrical Type' of the pad, and have three choices: Load, Terminator and source. But what's their meaning and when they will take effect?
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1answer
40 views

Pins are missing on PCB Altium

I have some problems with the PCB (connections doesnt show, etc) and pins missing on the PCB is one of them. Any idea on how to fix this?
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2answers
143 views

How to create custom through hole pad shapes in Altium Designer?

I'm trying to create a footprint for the ACS770 current sensor in Altium Designer (17.1), which has a quitte irregular shaped pad: ('round' pad shape with slot hole, and then a small cutoff in the ...
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1answer
34 views

Altium Gerber File Copper Breaks

I'm getting some really weird effects on my Gerber File outputs from Altium Altium 18.1.9, using OutJob Files, here are my settings My layers look completely normal with a copper pour for the ...
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2answers
872 views

How to set the sheet size in Altium Designer?

A few days ago I started to learn Altium Designer 17 and immediately stumbled upon some strange behavior. I created my first component and decided to see how it will look on paper. So I added this ...
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1answer
137 views

Defining a circular cutout in a pad in Altium

I'm creating the footprint for a Wurth inductor, 744043100. The recommended land pattern is below. They use a radius 1.8 mm circle in the middle of the component to define a void in the pad. I'm ...
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1answer
41 views

Tune the track length of a segment but not the entire net in Altium

I have a differential pair routed like this: U1 ======> U2 ========> U3 I want to equal the length of the pair between U1 and U2, but Altium always try to equal the entire net length between U1 and ...
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1answer
93 views

Altium 18 Place 3D bodyl dialog box missing

I'm trying to import a .step model into my footprint. I just upgraded to Altium 18 last night, and for some reason when I either click the icon to place 3D Body or go to the Place->3D Body menu, it ...
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1answer
55 views

Restrict making pcb library from board in altium

Hi can anyone let me know if there is any provision to make user not to extract the library from the given board file in altium designer as i would not want the user to extract the footprints from my ...