kicad-developers team mailing list archive

[Pierre Parent <pierre.parent@xxxxxxxxxxxxx>]

Hi,

I've sent to production my first length matched board, here is a picture! I 
hope it will work!

I've looked at the branch drawing tool. It seems pretty accessible. I'll try 
to do it when I have time. There are also improvements I would like to make to 
the length tuning tool.

Pierre.


Le samedi 12 avril 2014 21:03:51, vous avez écrit :
> On 04/11/2014 06:44 PM, Pierre Parent wrote:
> > Hi,
> > 
> > Im' new here. My name is Pierre. I've started to develop for kicad a tool
> > for trace length tunning.
> > 
> > Trace length tunning is an important tool which is lacking when designing
> > more complex boards in particular board with DDR/DDR2/DDR3 ram. For
> > example the board olinuxino imx 233 maxi, which is open hardware uses
> > length tunned traces in Eagle. It is currently completely impossible to
> > do similar thing with kicad even when spending lot of time on it.
> > 
> > A bug was filled by other users:
> > https://bugs.launchpad.net/kicad/+bug/594089
> > 
> > So my initial development was to stop the bleeding, and obviously it is
> > very early version which can largely be improved in usability. Though for
> > my use it is already suitable for DDR ram routing. Here are first
> > results:
> > https://www.youtube.com/watch?v=yWJyGpkZ6k4
> > https://www.youtube.com/watch?v=UdQ-2EnWNkw
> > 
> > I would appreciate any feedback, and advice. Do you think I should do a
> > branch with my code (still buggy)? Also I think it would be nice to get
> > it working with new component view, I don't think it would be hard. Has
> > the microwave toolbox started to be ported? (it would give me an
> > example).
> > 
> > I think it would be good to make sure a length tunning tool (even minimal)
> > is available in next kicad release, because it simply prevents to use
> > kicad to design certain kind of boards.
> > 
> > Pierre.
> 
> Hi Pierre,
> 
> I have seen your work presented in the bug report that you have created
> before. It looks quite impressive, it is great to have more people
> working on KiCad. I think the best way would be to integrate your code
> with the Push and Shove router.
> Currently, the microwave toolbox is not ported to the Tool Framework,
> but all the other tools are already there. If you would like to have a
> look on the code, the most interesting places are in the branch
> lp:~cern-kicad/kicad/drawing_tool:
> - the Tool Framework itself is located in common/tool
> - tools for pcbnew are in pcbnew/tools
> An example of initial steps to create a tool is available here:
> https://bazaar.launchpad.net/~cern-kicad/kicad/drawing_tool/revision/4667.
> If you need any help writing the tool using the framework, please do not
> hesitate to ask - we are glad to help.
> I have started writing a tutorial on creating new tools using the Tool
> Framework, but then I realized that there are still ongoing changes and
> it could become obsolete too early. Maybe now it is the right time to
> finish it.
> 
> Regards,
> Orson

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