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Mail Archives: geda-user/2017/08/27/20:43:25

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From: John Doty <jpd AT noqsi DOT com>
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Subject: Re: [geda-user] ASIC design using gnet-spice-noqsi, ngspice, and
Open-IP
Date: Sun, 27 Aug 2017 18:41:08 -0600
References: <64D229CE-8BA3-464D-A17D-5263C04A491A AT noqsi DOT com>
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> On Aug 27, 2017, at 6:20 PM, Roland Lutz <rlutz AT hedmen DOT org> wrote:
>=20
> On Sun, 27 Aug 2017, John Doty wrote:
>> https://github.com/noqsi/gnet-spice-noqsi/wiki/ASIC
>=20
> Thank you for contributing this!
>=20
> Just a small note: gnetlist doesn't ignore symbols with an attached =
graphical=3D1 attribute, it just doesn't include them in the netlist.  =
There is a special procedure =
graphical-objs-in-net-with-attrib-get-attrib which can be used to =
collect attribute values from graphical components.

Ah, but they have to be attached to a net (that=E2=80=99s the -in-net- =
part of the name). I carefully said "Each of the subcircuit schematics =
includes its corresponding symbol with a graphical=3D1attribute =
attached, but with nothing attached to their pins.=E2=80=9D

>  This is used in the `drc2' backend to look up NC symbols.
>=20
> Roland
>=20
>=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=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Aug 27, 2017, at 6:20 PM, Roland Lutz &lt;<a =
href=3D"mailto:rlutz AT hedmen DOT org" class=3D"">rlutz AT hedmen DOT org</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"">On Sun, 27 Aug 2017, John Doty wrote:<br class=3D""><blockquote=
 type=3D"cite" class=3D""><a =
href=3D"https://github.com/noqsi/gnet-spice-noqsi/wiki/ASIC" =
class=3D"">https://github.com/noqsi/gnet-spice-noqsi/wiki/ASIC</a><br =
class=3D""></blockquote><br class=3D"">Thank you for contributing =
this!<br class=3D""><br class=3D"">Just a small note: gnetlist doesn't =
ignore symbols with an attached graphical=3D1 attribute, it just doesn't =
include them in the netlist. &nbsp;There is a special procedure =
graphical-objs-in-net-with-attrib-get-attrib which can be used to =
collect attribute values from graphical =
components.</div></div></blockquote><div><br class=3D""></div>Ah, but =
they have to be attached to a net (that=E2=80=99s the -in-net- part of =
the name). I carefully said "<span style=3D"font-variant-ligatures: =
normal; orphans: 2; widows: 2;" class=3D"">Each of the subcircuit =
schematics includes its corresponding symbol with a&nbsp;</span><span =
style=3D"box-sizing: border-box; font-variant-ligatures: normal; =
orphans: 2; widows: 2;" class=3D"">graphical=3D1</span><span =
style=3D"font-variant-ligatures: normal; orphans: 2; widows: 2;" =
class=3D"">attribute attached, <i class=3D"">but with nothing attached =
to their pins</i>.=E2=80=9D</span></div><div><div style=3D"orphans: 2; =
widows: 2;" class=3D""><font color=3D"#24292e" face=3D"-apple-system, =
system-ui, Segoe UI, Helvetica, Arial, sans-serif, Apple Color Emoji, =
Segoe UI Emoji, Segoe UI Symbol" class=3D""><span style=3D"font-size: =
16px; background-color: rgb(255, 255, 255);" class=3D""><br =
class=3D""></span></font></div><blockquote type=3D"cite" class=3D""><div =
class=3D""><div class=3D""> &nbsp;This is used in the `drc2' backend to =
look up NC symbols.<br class=3D""><br class=3D"">Roland<br class=3D""><br =
class=3D""><br class=3D""></div></div></blockquote></div><br =
class=3D""><div class=3D"">
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px; font-variant-ligatures: normal; =
font-variant-east-asian: normal; font-variant-position: normal; =
line-height: normal;"><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" class=3D""><font face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica" class=3D"">John Doty<span =
class=3D"Apple-converted-space">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><span =
class=3D"Apple-converted-tab">&nbsp; &nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span></span></span>Noqsi =
Aerospace, Ltd.</font></p><p style=3D"margin: 0.0px 0.0px 0.0px 0.0px" =
class=3D""><a href=3D"http://www.noqsi.com/" =
class=3D"">http://www.noqsi.com/</a></p><p style=3D"margin: 0.0px 0.0px =
0.0px 0.0px" class=3D""><font face=3D"Helvetica" size=3D"3" style=3D"font:=
 12.0px Helvetica" class=3D""><a href=3D"mailto:jpd AT noqsi DOT com" =
class=3D"">jpd AT noqsi DOT com</a></font></p><br =
class=3D"Apple-interchange-newline"></span></span>
</div>
<br class=3D""></body></html>=

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