Netlist mismatch


#1

Nets counts in schematic is 187, but in the layout 185. how to do netlist check.


#2

We might need a bit more detail what you mean here. (How do you count nets?)

Also the kicad version might help.


#3

Netlist generated from the schematic and the text file is imported to excel and sort to count number of net,

layout shows 185,


#4


#5

Netlist generated from the schematic and the text file is imported to excel
and sort to count number of net,
sch.png1366x768 7.59 KB
https://kicad-info.s3-us-west-2.amazonaws.com/original/2X/a/ad9f22b07fb71e8ac376a2bed5de4a8de24acc56.png
layout shows 185,

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https://forum.kicad.info/t/netlist-mismatch/9735/4
https://forum.kicad.info/users/Asha
Asha https://forum.kicad.info/users/Asha
21h https://forum.kicad.info/t/netlist-mismatch/9735/4?u=asha

layout.png1366x768 9.57 KB
https://kicad-info.s3-us-west-2.amazonaws.com/original/2X/e/e3cbcf464e5d52c42b7b68ad1f16549d3cc1367e.png


#6

The status line of pcb_new might not list all nets. I suspect it only lists nets with at least two pads on it.
So it might be that the coun’t differs because you have named nets in eeschema that only have one pin on them.

I am not sure what you want to check.
If you want to check your schematic, run ERC.
If you want to check your pcb run DRC.
If you want to check if kicad does the conversion from schematic to pcb correctly you might need to do that by hand. (Everybody else just trusts kicad here.)


#7

There is an option to remove single pad nets when reading the netlist in pcbnew, might make a difference.


#8

After single pad nets reading, nodes only rduced 742 to 722 , nets
remains same


#9

You could dump a netlist from pcbnew, which should be the netlist that pcbnew is using. There are various formats, for example File->Export->Specctra DSN gives an easy to read text file. You can count the number of “net” entries there and see if it matches.


#10

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