I have the Adafruit Ultimate GPS (https://www.adafruit.com/product/746) on a BBB right now, and I get a fix often inside, I have yet to try outdoors. Though that is quite interesting that your having RF issues! How did you shutoff the HDMI, super beginner here with respect to embedded devices.
On Sun, May 15, 2016 at 6:18 PM, Keith Conger <[email protected]> wrote: > I had the same issue with my Adafruit GPS. I was able to resolve it by > shutting off HDMI. > > Keith > > On Sunday, November 17, 2013 at 4:59:52 PM UTC-7, [email protected] > wrote: >> >> Hello everyone, >> >> Sorry for the repost. i had posted this on the BeaglBone group, but this >> is a BBB issue. >> >> I am having some problems trying to use a GPS receiver with the >> BeagleBone black. I connected a PMB-648/688 module to one of the BBB UART >> ports. I can see the NMEA messages coming from the GPS receiver, but I >> never get a valid fix. I doesn't report any satellites in view (GPGSV >> messages). Not even if I leave it on my rooftop for a couple hours. >> >> Initially I thought it might be a problem with the GPS receivers, so I >> tested them on my laptop. Every one of the receivers I have worked fine, >> taking a less than a minute to get a fix from my window. >> >> The next thing i thought was that there might be some power supply noise >> messing with the GPS receiver, so I tried powering the receiver by itself >> (connecting the grounds of my receiver supply and the BBB). Surprisingly, >> this worked. More surprisingly, it stopped working If I moved the BBB close >> to the GPS receiver. >> >> This lead me to suspect that the BBB might be causing some RF >> interference on the GPS frequency band. My next test was to have the GPS >> receiver and the BBB powered independently. This confirmed my suspicion. If >> I powered the GPS receiver, waited until it got a valid GPS fix, powered >> the BBB, and placed the BBB close to the GPS receiver, the I would get the >> same result as before. No GPS fix, no satellites in view. Since the two >> devices are being powered with two independent power sources, then the BBB >> must be causing some RF interference. I do not have a RF spectrum analyzer >> to confirm this, but I do not see any other reason.I tested this with three >> different BBB and 6 different PMB-648/688. I always got the same result. >> >> I tried the same GPS receiver on a Raspberry Pi and It works fine, so >> that is what I am going to work with for the moment. But I really like the >> BBB, and would love to use it for my application. Is there anything I could >> do to fix this? >> >> I'm sure other people have used GPS receivers with the BBB. Can anyone >> recommend a GPS receiver that works with the BBB? I'm looking for a >> receiver that's approximately the same size (3cm*3cm) and price ($35-$40) >> as the PMB-648/688. I'm getting the Adafruit Ultimate GPS soon, so I'll >> report about that. >> >> Thanks! >> >> --Juan Camilo >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/c5fcde70-3c7f-41ed-8a5c-f8cd382935d5%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/c5fcde70-3c7f-41ed-8a5c-f8cd382935d5%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Theodore B. McDonald -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOke5MFBtasrZp8kn3EsrSYax%3Djc2AusLZAPwivwcPpxpnJgvw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
