Mail Archives: geda-user/2015/07/16/14:51:20
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On Jul 16, 2015, at 12:25 PM, Ouabache Designworks (z3qmtr45 AT gmail DOT com) =
[via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
>=20
> It may be that we need a another tool between gschem and PCB that =
would perform packaging, board shape and layers entry and floor =
planning. It would deal with all the PCB specific constraints as well as =
back annotation.
You mean between gnetlist and PCB. A good use for the requested neutral =
netlist format. But I don=92t see how back annotation could play well =
with hierarchy. What happens if the same segment in different instances =
of a subcircuit has different properties, for example? Another =
motivation for DJ=92s database.
>=20
> It would read in a unpackaged gschem netlist
Also BOM.
> and write out the PCB file formats so it would be loosley coupled to =
gschem and tightly coupled to PCB.=20
John Doty Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><br><div><div>On Jul 16, 2015, at 12:25 PM, Ouabache =
Designworks (<a href=3D"mailto:z3qmtr45 AT gmail DOT com">z3qmtr45 AT gmail DOT com</a>)=
[via <a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>] =
<<a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>>=
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"ltr"><br><div class=3D"gmail_extra">It may be =
that we need a another tool between gschem and PCB that would perform =
packaging, board shape and layers entry and floor planning. It would =
deal with all the PCB specific constraints as well as back =
annotation.<br></div></div></blockquote><div><br></div>You mean between =
gnetlist and PCB. A good use for the requested neutral netlist format. =
But I don=92t see how back annotation could play well with hierarchy. =
What happens if the same segment in different instances of a subcircuit =
has different properties, for example? Another motivation for DJ=92s =
database.</div><div><br><blockquote type=3D"cite"><div dir=3D"ltr"><div =
class=3D"gmail_extra"><br></div><div class=3D"gmail_extra">It would read =
in a unpackaged gschem netlist =
</div></div></blockquote><div><br></div>Also =
BOM.</div><div><br><blockquote type=3D"cite"><div dir=3D"ltr"><div =
class=3D"gmail_extra">and write out the PCB file formats so it =
would be loosley coupled to gschem and tightly coupled to PCB. =
<br></div></div></blockquote></div><br><div apple-content-edited=3D"true">=
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><p style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><font face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica">John Doty<span =
class=3D"Apple-converted-space"> <span =
class=3D"Apple-converted-space"> </span><span =
class=3D"Apple-converted-tab"> <span =
class=3D"Apple-converted-space"> </span></span></span>Noqsi =
Aerospace, Ltd.</font></p><p style=3D"margin: 0.0px 0.0px 0.0px =
0.0px"><a href=3D"http://www.noqsi.com/">http://www.noqsi.com/</a></p><p =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><font face=3D"Helvetica" =
size=3D"3" style=3D"font: 12.0px Helvetica"><a =
href=3D"mailto:jpd AT noqsi DOT com">jpd AT noqsi DOT com</a></font></p><br =
class=3D"Apple-interchange-newline"></span>
</div>
<br></body></html>=
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