X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Message-ID: <4FBDF333.3030106@innocent.com> Date: Thu, 24 May 2012 04:37:07 -0400 From: Gus Fantanas User-Agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 MIME-Version: 1.0 To: geda-user AT delorie DOT com Subject: [geda-user] Hidden Nets and Slots Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Reply-To: geda-user AT delorie DOT com I am using a modified QFN16_EP footprint (QFN16 with pad). I modified the QFN_EP footprint that came with the gEDA library so that the pad is not absolutely square, enabling me to rotate the whole footprint without trouble (this avoids the well-known PCB problem with rotation). The way I have created this footprint the pad shows up as pin 17. I am using a slotted symbol for the HFA3127 transistor array (QFN16). The symbol has five slots, but did not mention the pad (pin 17) initially. In PCB, after importing the netlist, I connected the pad to a ground plane with nine thermal vias. PCB warned me that pin 17 was shorted to ground. I tried entering 'net = GND :17' statement in the symbol, but gschem claimed it read some garbage in the symbol for the HFA3127. I even listed pin 17 in each slot, but still gschem claimed it read some garbage in the same symbol. I can certainly live with PCB's warning about the "short" between the pad and ground, but I would like to make it go away. Since my schematic is cluttered, I do not want to bring pin 17 into every slot. It seems that gschem's documentation on the 'net' feature (at least the one I accessed) is ancient and perhaps out of date. Can anybody shed some light about how to use hidden pins in symbols with slots?