X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Message-ID: <55D30726.4020109@envinsci.co.uk> Date: Tue, 18 Aug 2015 11:21:26 +0100 From: "Matt Rhys-Roberts (matt DOT rhys-roberts AT envinsci DOT co DOT uk) [via geda-user AT delorie DOT com]" Organization: Envin Scientific Ltd. User-Agent: Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: geda-user AT delorie DOT com Subject: Re: [geda-user] my confusion re differing pad numbers and names (pcb) References: <55D2F512 DOT 6050005 AT envinsci DOT co DOT uk> <1439890575 DOT 2874 DOT 34 DOT camel AT linetec> In-Reply-To: <1439890575.2874.34.camel@linetec> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Reply-To: geda-user AT delorie DOT com On 18/08/15 10:36, Richard Rasker (rasker AT linetec DOT nl) [via geda-user AT delorie DOT com] wrote: > Matt Rhys-Roberts (matt DOT rhys-roberts AT envinsci DOT co DOT uk) [via > geda-user AT delorie DOT com] schreef op di 18-08-2015 om 10:04 [+0100]: >> I've created a symbol with 13 pads in pcb, and it seems to convert to an >> element quite well. >> >> After converting it to an element, I notice (by pressing D while >> hovering over them) that the 13 pads are numbered arbitrarily, probably >> in order of creation. >> >> I can assign each pad with the preferred names/numbers to match the pad >> naming convention for my design, but I don't know if this is going to >> confuse matters later? Hopefully gsch2pcb will sort things out? >> >> Should I edit the footprint file to make the initial ("wrong") pad >> numbers match the desired pad numbering? Am I worrying too much?! > The pads are indeed numbered in order of creation. In my experience, you > can simply renumber the pads in the footprint file. Just make a note of > how the numbers should change from what you see in PCB beforehand. Hi Richard. Ok, thanks > The best approach is to number pads during creation. Each line that is > to become a pad can be assigned a number by pressing N while hovering > over it; just enter a number as the Line Name. Oh dear, have I messed up here? I created my very specifically sized pads using rectangles on the top layer. I have seen that some ready-made elements break down into round-ended top-layer lines, which can be squared afterwards... Am I breaking the rules by trying to use rectangles instead in the first place? > > When dealing with structural metal parts such as mounting tabs and pins > on connectors, I usually assign these the number 0 (zero) -- although > the gschem symbol should have a corresponding pin if these parts are to > be connected to a circuit net (usually GND). Perhaps other people use a > different approach here? I too have several pads that all connect to a connector's shield ground; it would be nice if I could call them by same name. I've been numbering them uniquely, pending a better strategy :D Matt.