From: Steve S. <sa...@gm...> - 2011-09-16 16:33:00
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On Fri, Sep 16, 2011 at 9:00 AM, bkpdeveloper <bkp...@gm...> wrote: > Steve just had to say thanks so much for your help. It was that the tx/rx > connections were reversed. I couldn't believe it. :-) > Working like a champ now. > Thanks again. Glad to hear it! Steve > On Thu, Sep 8, 2011 at 3:47 PM, Steve Sakoman <sa...@gm...> wrote: >> >> On Thu, Sep 8, 2011 at 12:01 PM, bkpdeveloper <bkp...@gm...> >> wrote: >> > Thanks Steve for the link. >> > >> > Software wise my code is almost identical to what you have going on. >> > (I'm >> > reading instead of writing). >> > >> > I want to verify that out of the box those additional serial ports are >> > enabled. Could I possibly missing something there? If the answer is >> > yes, >> > I'll probably need to take a closer look at the hardware sending the >> > data. >> >> Well, I can only speak with certainty for the software images on my >> site. In those all 3 serial ports are enabled. Of course 2 of the 3 >> are already utilized (as described in my article) so the first serial >> port is really the only option. >> >> I'm pretty sure that upstream u-boot and linux also enable all 3 >> ports, so it is pretty likely that you should look at your hardware >> first! Are you sure you haven't swapped TX and RX connections? I'd >> guess that 99% of serial issues are due to reversed connections :-) >> I'd also check your level conversion to make sure voltage levels are >> correct too. >> >> Steve >> >> > Thanks for any info. >> > >> > On Wed, Aug 31, 2011 at 2:03 PM, Steve Sakoman <sa...@gm...> >> > wrote: >> >> >> >> On Tue, Aug 30, 2011 at 8:51 AM, Bianca Prince <bkp...@gm...> >> >> wrote: >> >> > I'm attempting to communicate with a piece of hardware via the ttyS0 >> >> > serial >> >> > port - using the Tobi Board 9/10 pins. I'm attempting to interface >> >> > with >> >> > the >> >> > hardware as a simple serial port connection. So far I've had no luck >> >> > being >> >> > able read across this connection. >> >> > >> >> > Right now I'm keeping the software portion very simple just to see if >> >> > I >> >> > can >> >> > get something working it's simply using the termios api to open the >> >> > connection set the attributes and attempting to read from it. >> >> > >> >> > Are there additional things that need to be done to enable this port? >> >> > Am I >> >> > missing something in the hardware portion that's required for this to >> >> > function properly. Driver? >> >> > >> >> > Any information is appreciated? >> >> >> >> Take a look at this example of using one of the serial ports to talk >> >> to a 7 segment display: >> >> >> >> >> >> >> >> http://www.sakoman.com/OMAP/how-to-add-a-serial-7-segment-display-to-overo.html >> >> >> >> It is output only, but will give you a general overview of how to >> >> approach >> >> this. >> >> >> >> Steve >> >> >> >> >> >> >> >> ------------------------------------------------------------------------------ >> >> Special Offer -- Download ArcSight Logger for FREE! >> >> Finally, a world-class log management solution at an even better >> >> price-free! And you'll get a free "Love Thy Logs" t-shirt when you >> >> download Logger. 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How do next-generation virtual >> > desktops >> > provide companies an easier-to-deploy, easier-to-manage and more >> > affordable >> > virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/ >> > _______________________________________________ >> > gumstix-users mailing list >> > gum...@li... >> > https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > >> > >> >> >> ------------------------------------------------------------------------------ >> Doing More with Less: The Next Generation Virtual Desktop >> What are the key obstacles that have prevented many mid-market businesses >> from deploying virtual desktops? How do next-generation virtual desktops >> provide companies an easier-to-deploy, easier-to-manage and more >> affordable >> virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/ >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > ------------------------------------------------------------------------------ > BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA > http://p.sf.net/sfu/rim-devcon-copy2 > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > |