delorie.com/archives/browse.cgi   search  
Mail Archives: geda-help/2022/01/27/02:44:33

X-Authentication-Warning: delorie.com: mail set sender to geda-help-bounces using -f
X-Recipient: geda-help AT delorie DOT com
X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net;
s=badeba3b8450; t=1643269431;
bh=0Lq1z0yEe4mRsZ6rWCoB7cXKfGwQug2tBjo56531wmI=;
h=X-UI-Sender-Class:Date:From:Subject:To;
b=OhZgnnJiAFQdCffTgpRjUJQc9bX66ejCc3OvdUyGA1MVfRkbosA9rB0QjQepevB0j
0Z45ca3eTJLk0zdcblN0oh/hUxFGZHdrFMVGT7MQSxIRP6WC8x+ebApdIw7JrGC38Z
jxwi1GKfB/s19dJBnUOW+08dADsb7sKMjebIMNzg=
X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c
Message-ID: <495872f6-0679-512e-4699-bec292f8da70@gmx.de>
Date: Thu, 27 Jan 2022 08:43:49 +0100
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
Thunderbird/91.3.0
From: "Klaus Rudolph (lts-rudolph AT gmx DOT de) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com>
Subject: [geda-help] geda pcb: footprint with non rectangular pads
To: geda-help AT delorie DOT com
X-Provags-ID: V03:K1:aMRym3wYEPCNHXaxQsub0x6HgEJFTKif8JV9UcUVgv1uPnTb2us
NIJ5rX3BFgV6p45rK2R/Ftk2Jj2UMbbZYhPmJUv7TpR0zsxdFm4RS17iPSW20oo1i6DM8bu
xVq3jEAjinW/ROX/bAbrAzpyD+33vzkTdn74KBTUmgGGaTwSmjx5xVT3adHHY5x45aX2fUE
uXsfShPwvIfgVSS/4dpNg==
X-Spam-Flag: NO
X-UI-Out-Filterresults: notjunk:1;V03:K0:ZSvURtVmRAU=:Pdxip/2Iu1UKSocWmpYRP1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X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id 20R7hrsc016211
Reply-To: geda-help AT delorie DOT com

I want to create a board with a VQFN 20 package which has non
rectangular pads.

A detailed drawing can be seen here:
https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny806_1606_Data_Sheet_40002029A.pdf
Section 34.2 20-Pin VQFN

As you can see, the pads at the corner have a non rectangular shape.

I read http://pcb.geda-project.org/pcb-cvs/pcb.html#Library-Creation
and there was mentioned:

10.2.1 Creating Newlib Footprints
"Currently a rectangle or polygon may not be used as a pad. "

Is there any chance to create a footprint for PCB for VQFN-20 as given
in the above linked data sheet with non rectangular pads?

Thanks
Klaus

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019