- From: Bernd Porr <tech_at_linux-usb-daq.co.uk>
- Date: Fri, 16 Jul 2004 14:34:17 +0100
Hello Haavard, do I understand it right that you are going to control motors with a variable impulse/pause period? Thus, PWM? My plan is the following: I'll just add another 4 channels. The first 4 analogue output channels are then the "real" analogue output channels. The next 4 analogue output channels will become the PWM channels. In this way the PWM output is completely transparent to the application. The application is just seeing an analogue output channel. How does that sound to you? /Bernd Haavard Holm wrote: > Hello, > > I plan to make a program which controls a wave-maker in a small (0.6x2m) > basin. In the > basin there will be a ship. The program shall measure the heave motion > of the ship. > > The program shall be controlled (wave height and wave period) through a > web-interface. > Output from the program (heave-motion, maybe also pitch, driftforces and > so on), > will be presented by a web-page. > A video of the ship in waves will be streamed to web. > > I think I have good control over most of the programming/setup. The > programming > of the daq remains. > > This will be used for education / illustration. > > Haavard > > > > Bernd Porr wrote: > >> Thanks for the code. I'll have a look into it. In particular the API >> is interesting. >> >> Re the timeline: since I'm writing the stuff on my own I can't predict >> how long this will take. I think the hard bit it not shuffling the >> bits around but the API. And there you have some good stuff already. >> My personal timeline is to submit working code to the CVS a the end of >> next week. Then you could test it. Which application do you have in mind? >> >> Herman Bruyninckx has asked me already regarding this. >> >> /Bernd >> >> Haavard Holm wrote: >> >>> >>> Hello >>> >>> Sounds good. Maybe you can use code from : >>> http://people.mech.kuleuven.ac.be/~kgadeyne/software/pprts/drivers/comedi/ni660x/test/ >>> >>> or viewpoints from >>> https://cvs.comedi.org/pipermail/comedi/2003-April/004381.html >>> >>> What is the time-line for a working implementation ? >>> >>> Best regards >>> >>> Haavard Holm >>> >>> >>> Bernd Porr wrote: >>> >>>> Haavard, >>>> >>>> I'm planning to do that. I didn't have the time to implement it so >>>> far. Do you need it for a robotics application? >>>> >>>> Probably I'll start this week implementing it. Please watch out in >>>> the comedi mailing list. >>>> >>>> There are also requests for counters. This is also on my todo list. >>>> >>>> Regards >>>> /Bernd Porr >>> >>> >>> >>> >>> >>> >> >> > > -- http://www.linux-usb-daq.co.uk/ Mobile: +44 (0)7769 506746 Work: +44 (0)141 330 5237
Received on 2004-07-16Z12:34:17