1. You need to either delete the rooms or use them properly. There is no harm to delete them, but they are useful. You can place all the parts in a room and then by moving the room, you move all the associated parts. What you can do if you think you want to keep the rooms is make them the size of the PCB and locate them on top of the PCB area. That way the parts will be in your workspace AND still be within the bounds of the room.
2. What is your question? Do you want the short circuit, or do the pins looks like they are separate but reporting a short circuit? Did you create the part? Maybe you mis-numbered 4 of the pins?? It's hard to tell without seeing the part in question. 3. Edit the part properties and tell it the layer is Bottom instead of Top. I don't remember the exact field, but yes, you can place parts on the bottom layer. If you're placing the parts manually from the library, press TAB to edit the part properties. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Muhammad Nazir Sent: Wednesday, May 25, 2005 10:36 PM To: [email protected] Subject: [PEDA] Protel layout questions Hi I am new to using Protel. I captured my design in a schematic and then updated my PCB file. I got the following errors: 1- Violation between SMT Small Component R14(4840mil,4540mil) on Top Layer and Room Amp-CFD5 (Bounding Region = (7475mil, 3180mil, 22145mil, 3770mil) The above error appears as soon as a components is dragged onto the PCB board for placement from the block on the side of the board outline. It seems that the software takes this block as the 'room' rather than making the board outine its 'room'. 2- I have an IC which is a QFN package with 32 Terminals, Body 5 x 5 mm and Pitch 0.5 mm. Four pads of this IC have a short circuit with their own selves as shown by the following error. Short-Circuit Constraint (Allowed=No) (All),(All) Violation between Pad CMP1-12(4425.158mil,4215.984mil) Top Layer and Pad CMP1-12(4425.158mil,4223.465mil) Top Layer 3- I want to place components on both sides of the board but the software does NOT let me place the components on the bottom layer although I can see it (as a single layer as well as a multi-layer). I did tell the software that I would put comonents on both sides when I used the wizard to create the board. Could anyone let me know what am I missing here? I appreciate your help in advance. Thanks ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected] ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
