Pierre, I can use this feature on about 1/2 of all the boards we are currently doing, so it is a useful feature.
I think now, before your patch, you can measure the current length of tracks, but it is not interactive, and sometimes it gives you the length of a segment rather than the entire track. I have not mastered it, or there's a minor bug, wasn't sure. In any case yours will be a useful improvement. Dick On 04/16/2014 01:33 PM, Pierre Parent wrote: > 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 >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~kicad-developers >> Post to : [email protected] >> Unsubscribe : https://launchpad.net/~kicad-developers >> More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
