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Recent content by QELEC

  1. Q

    Questions about polygons and merging RECTS in EAGLE

    EAGLE_Problems About your first question : I've never imported anything to Eagle, so sorry, I cannot help for that. About the second : the only difference I've noticed between what I see in an eagle board and the generated gerber files (and therefore on the real pcb) are the octogonal pads in...
  2. Q

    schematic design software

    kicad-2008-08-25c-final-winxp_autoinstall.zip Have a look at Eagle ! The demo is free, just limited on the size and 2-layers, but with that you can already make a lot. Check on . You can also download manuals on their website. Have fun, Regards, Loïc
  3. Q

    any software for checking two version of pcb file ?

    Not sure to understand clearly the question. I always visually check my generated Gerber and Exellon files with the free demo of GC Preview. Quite basic, but you directly see if it looks normal or not and it allowed me to prevent some stupid mistakes. You can download it on...
  4. Q

    Questions about polygons and merging RECTS in EAGLE

    Re: EAGLE_Problems About the previous reply from Ol'Nick : Good precision for the ranks, I hadn't tought about it and I've never used it yet for the polygons. But I think you cannot change the polygons behaviour in the DRC menu, as the purpose of this tool is only to check the errors. Tell me...
  5. Q

    Questions about polygons and merging RECTS in EAGLE

    EAGLE_Problems 1) Select the polygon tool 2) Choose the options on the top bar 3) Draw it 4) Give it a name (can be done later) if you want it to be connected to an overlapping signal. 5) Click on the "ratsnest" button If you change the name of the polygon later, click again on ratsnest and...
  6. Q

    anyone who knows about design of card againt attacking?

    Hi. Still looking for info about DPA ? I disagree with this method. OR the extra consumption is correlated with the messages or the key and it is then even easier to attack it, OR it is not correlated and one just needs more comsumption traces to average it (as it is just a noise) and discard...
  7. Q

    Questions about polygons and merging RECTS in EAGLE

    Re: EAGLE_Problems Hello. 1.a) You cannot merge RECT with anything in the signal layers (refer to the help about RECT). To merge a rectangular shape with a signal, use the POLYGON tool, and give the shape the same name as the signal. 1.b) You can add signals in the board if no linked...

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