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Mail Archives: geda-user/2018/07/25/13:34:18

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From: John Doty <jpd AT noqsi DOT com>
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Subject: Re: [geda-user] Re: Project file
Date: Wed, 25 Jul 2018 13:33:07 -0400
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> On Jul 25, 2018, at 12:34 PM, Roland Lutz <rlutz AT hedmen DOT org> wrote:
>=20
> On Tue, 24 Jul 2018, John Doty wrote:
>> You may have different symbol libraries for prototype and production.
>=20
> How would these symbols be different: in top-level attributes, in pin =
attributes, in pin geometry, or in graphical design?
>=20
>=20

The most common difference is footprint. If I have things like =
manufacturer=E2=80=99s part number as attributes, that changes too. =
Sometimes pin numbers change. Sometimes pin count changes: that 18 pin =
MOSFET symbol I posted recently drops right into a schematic originally =
designed for a 3 pin part.

Lately, I=E2=80=99ve been handling such issues more in git than in =
makefiles (prototype and production have separate branches), but git is =
another generic tool rather than something that locks you in to a =
specific toolset.

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 Jul 25, 2018, at 12:34 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 Tue, 24 Jul 2018, John Doty wrote:<br class=3D""><blockquote=
 type=3D"cite" class=3D"">You may have different symbol libraries for =
prototype and production.<br class=3D""></blockquote><br class=3D"">How =
would these symbols be different: in top-level attributes, in pin =
attributes, in pin geometry, or in graphical design?<br class=3D""><br =
class=3D""><br class=3D""></div></div></blockquote><br =
class=3D""></div><div>The most common difference is footprint. If I have =
things like manufacturer=E2=80=99s part number as attributes, that =
changes too. Sometimes pin numbers change. Sometimes pin count changes: =
that 18 pin MOSFET symbol I posted recently drops right into a schematic =
originally designed for a 3 pin part.</div><div><br =
class=3D""></div><div>Lately, I=E2=80=99ve been handling such issues =
more in git than in makefiles (prototype and production have separate =
branches), but git is another generic tool rather than something that =
locks you in to a specific toolset.</div><br class=3D""><div class=3D"">
<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; "><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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