Questions tagged [autorouter]

The PCB Auto Router is a feature of a PCB-design software that places traces automatically.

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3
votes
1answer
63 views

EAGLE 9.4.1 How do I autoroute a range of signals?

I have a board with three 32 input analog multiplexers, along with more components, connected to a 96 way DIN connector. How do I manually tell the autorouter to select only the muxers signals? I ...
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0answers
31 views

Eagle PCB GND planes not show after ratsnest command

I poured my polygons on both TOP and BOTTOM layers ,but after i name them and click ratsnest the GND planes don't show up. The autorouter didn't want to route as it was stuck at 00.0% and finished ...
5
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1answer
116 views

Altium testpoints auto-placement

Is there a way to use Altium to automatically generate test points on an already routed board? When there is no usable via, I'd like to place a pad on the net. When reviewing Altium API reference ...
0
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0answers
95 views

Eagle - 6 Layer Via pairing error + bga fanout

I'm trying to manually fanout 5 bga's on my 6 layer board. Tried using Eagle's default Auto BGA router and kept coming up with problems regarding my additional layers being used but not enabled, I ...
1
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2answers
118 views

How can I adjust my IC placement further to route properly?

I've been trying to place my ICs properly to allow the autorouter to route the ICs with no success, I'm a total beginner at this and I tried routing manually with no success, any hints? The board is 1 ...
1
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1answer
119 views

Trouble with Eagle's BGA autorouter

Personally I'm having trouble with eagle's bgaAutoRouter when I use it, it's not doing the bga tracks and routes and I'm wasting a lot of time looking for how to make it work. my settings in image. ...
0
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1answer
186 views

Open-source layout routing tool [closed]

I am looking for an open-source circuit layout routing tool (with scripting option) for custom layout design. For example: I design a NAND schematic and convert it into layout and place components (...
0
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1answer
83 views

Why does autorouter revert to 98% after reaching 100%?

I managed to route an entire complex board with eagle, or so I thought. At first it worked. Then I began adding large fills (ground planes and VCC planes) in order to minimize impedance. I now added ...
0
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1answer
132 views

Eagle CAD autorouter places tracks too close to vias

Eagle CAD autorouter places tracks too close to vias. I tried to change some parameters in the design rules but without a good result.
2
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1answer
87 views

How to set the width of all the traces together to the desired value before using autoroute option in Autodesk Eagle?

How to set the width of all the traces together to the desired value before using autoroute option in Autodesk Eagle? every time I use autoroute, the trace width is by default set to 0.0154mm. I have ...
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0answers
60 views

Altium AutoRouter problems with mixing power signals

I'm using Altium for my board layouts, and for the most part, I hand rout the boards. I'm currently working on a particularly dense board, so I decided to use the autorouter after hand routing about ...
-1
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1answer
371 views

Altium trace Clearance auto finder (based on ANSI / IPC-2221/IPC-2221A standards)?

I need to make one LED PCB Bord for lighting using SO i have designed my schematic into Altium designer V16, like this (single side ): So according ANSI / IPC-2221/IPC-2221A design standards for My ...
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2answers
1k views

How to find an EAGLE routing variant which will be OK after final processing of polygons

I am laying out a PCB using EAGLE 7.7.0 for Linux (64 bit). When I run the Autorouter (high effort) it runs 22 variants of the routing, and all 22 produce 100% complete routing. Below the dialogue ...
-2
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1answer
396 views

Why Altium designer autorouter making overlapped circuit track (error)?

I am using autoroute option in Altium designer (for only bottom layer), but in result I see some tracks overlapped to each other, as you can see in this photo: So I think when the Altium could not ...
1
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1answer
32 views

command to identify struggling connection in eagle faster

I'm trying to auto-route a PCB which eagle determines there are 400 connections to. Sometimes I reach 100% and sometimes I reach 99.5 and 99.8% and as I watch the progress, sometimes eagle claims ...
0
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1answer
217 views

what are the ways to make the autorouter in eagle work faster?

I know one obvious way is to upgrade to a modern computer but not a lot of people can afford to do that. What I have attempted to do to try to speed up auto-routing operation is to add lines from the ...
1
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2answers
703 views

How to prevent eagle from attempting a specific route?

I'm using the eagle autorouter to route my PCB because it makes cleaner tracks than if I did it myself. One problem I have is that sometimes it insists on attempting to make the same connection over ...
8
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1answer
718 views

Safe route clearance on PCB?

Some chips with high input voltages have a very tiny package. For instance, power gauge INA226 has a maximum convert voltage of 36V, but it's in MSOP8 package, the distance between two pins in its ...
0
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1answer
36 views

How to display unroutable tracks early in eagle autorouting process

I felt like I spent a week trying to route the same circuit. I then look in the manual for hints, and it talks about how the status of the autorouter includes the number of tracks that it believes are ...
1
vote
1answer
147 views

Connecting latch to ram via 8 horizontal tracks within IC (auto-routed style)

Here's the issue with eagle autorouter and me trying to connect a 62256 ram chip to a 74HC574 latch (even with clock and latch enable disconnected) I measured the width in the trouble IC (74HC574) ...
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2answers
1k views

Eagle: Autoroute only gnd and vcc net with using only vias

I'm struggling to get the Eagle Autorouter (Eagle 7.6) to route only the VCC (layer 2) and GND (layer 15) layer on a 4 layer board. I have created a net class for VCC and GND. Now I would like to have ...
2
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3answers
2k views

Impedance matching routes in Eagle board

I am making my second board using Eagle CAD. I have different components with a set of different sizes. I set the minimum width for lines to be x. That way, the autorouter creates EVERY line in that ...
1
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1answer
3k views

Eagle will not finish auto routing?

Using Eagle for mac, I am trying to autoroute the board. I have set the trace width to 8. He start the process and it takes him about 2 minutes, than he stops at some point and show the next ...
2
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3answers
4k views

Reroute existing wires with autorouter eagle

I created a board in Eagle, autorouted it and then moved components around. Is it possible to autoroute again, because now the wires are not straight. If I autoroute it just ignores existing wires.
21
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6answers
13k views

New to PCB design - why doesn't auto placing components exist?

The circuit design software I have seen has the ability to automatically route traces etc. on a PCB. But why doesn't this software have the ability to automatically place components on a PCB say to ...
3
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1answer
622 views

Eagle routing gate swap and abitrary connectible pins

Is it possible to have the Eagle autorouter swap gates or pins on parts allowing such exchanges to untangle traces ?
2
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1answer
103 views

Eagle Auto Router Display

I've been having difficulty finishing the routing on a PCB I've designed. This is the first time this has happened really. I have miles of free space, yet it only gets to 96.4%. Anyways, I can't find ...
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1answer
2k views

Why is the autorouter not reaching 100%?

When I use the autorouter in eagle for creating simple traces (the more difficult ones I'm doing on my own) it stops at 98.2%, but no trace is left unrouted. Why don't I get 100%? How do I find out ...
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1answer
4k views

Eagle Clearance Error on DS2784

I am using the CAD drawing for the DS2777 from Maxim Integrated. http://www.maximintegrated.com/en/design/packaging/cad/?phase=proc&return_url=http%3A%2F%2Fwww.maximintegrated.com%2Fen%2Fdesign%...
8
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3answers
10k views

What are some tips to routing a one sided PCB?

I'm having trouble routing this PCB in Eagle 7.1: I have tried the following: Autorouting - it could not complete Moving components around Manually routing - I always ended up getting stuck Adding ...
9
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3answers
3k views

Eagle - How to make the router ignore internally connected pins (in a package)

I have made a tactile switch package and as the picture shows pin 1 and 2 are internally connected, same for pin 3 and 4. The package have 4 pads and the symbol only 2. I have connected pads 1+2 with ...
1
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1answer
494 views

KiCad: can I give different names to different parts of the same net?

Is it possible to give different names to different parts of the same net in KiCAD? I'm setting up to do an autorouted layout (yes, I know, autorouters are evil, but they save a lot of time and ...
2
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2answers
524 views

Eagle not autorouting custom footprint

I am making a custom footprint for a component. However if I use the component then Eagle doesn't auto route any connections to that component. Does anyone have any ideas?
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2answers
1k views

Eagle how to restore default autorouter settings?

I'm testing Eagle autorouter while changing the value in various ways. Is there way to reset the parameter values for returning to default settings?
2
votes
1answer
82 views

In Eagle, Why via is created in the distant location

I'm using Eagle Autorouter. This works fine. But sometimes via is created in the distant location. Does anyone know the cause? Image is using 10mil Grid. Center-Top small one is the via of this ...
6
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5answers
6k views

Convert Eagle v6 BRD file for autorouting?

I've just finished designing a PCB in Eagle. Now I want to use the freerouting.net autorouter to route my board (because Eagle's default auto is crap, sadly). The one problem: converting my Eagle PCB ...
8
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4answers
6k views

Autorouter for PCB breadboard?

Is there any usable program that could help me organize elements on PCB breadboards? Or maybe some kind of autorouter? By PCB breadboard I mean something like this:
8
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3answers
8k views

Combining hand-routing and auto-routing in Eagle; selective ripup in an Eagle ULP

In Eagle I often prefer to route some wires myself (power, xtal, UBS, etc), and leave the rest to the autorouter. When I am not pleased with the result I route some more myself, and let the autorouter ...
1
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1answer
2k views

Fritzing unrouted connections with Autoroute

Why does Fritzing's Autoroute leave unrouted connections? Is there any way to tell it to route every connection?
2
votes
3answers
2k views

CPU considerations for PCB software (routing) when purchasing a new computer

My company uses Altium Designer for PCB design and the most CPU intensive operation seems to be the autorouting. My question is, when considering a new computer, would it benefit autorouting ...
20
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7answers
27k views

Which PCB software has the best autorouter? [closed]

I know that lots of people out there feel that autoroute results are not useable. I find that the autorouter is a good way to get a good placement. I use eagle. I do a basic placement, autoroute ...