Hi Adam, I'm thinking of doing an RTL-SDR project with the BBB, as well. Sorry I can't lend any advice, yet, since it's just concept stage for me right now. I may have some insight in a week or two since a satcom project here in NYC may be moving from using the RPi to the BBB.
Have you had any further success with your BBB setup? Would you mind telling me which stick you're using? Thanks much. Charles On Tuesday, November 18, 2014 5:55:02 PM UTC-5, [email protected] wrote: > > I'm attempting to use a RTL-SDR stick on my BBB, but too many samples are > being dropped to be stable. When running the test program rtl_test, a > typical output is like this: > > Sampling at 2048000 S/s. > Reporting PPM error measurement every 10 seconds... > Press ^C after a few minutes. > Reading samples in async mode... > lost at least 68 bytes > real sample rate: 2048506 current PPM: 248 cumulative PPM: 248 > real sample rate: 1613474 current PPM: -212171 cumulative PPM: -108885 > lost at least 33108 bytes > [snip] > lost at least 33820 bytes > lost at least 568 bytes > real sample rate: 2231729 current PPM: 89712 cumulative PPM: -42138 > real sample rate: 2047938 current PPM: -30 cumulative PPM: -31448 > > A perhaps telling dmesg output occurs when I start the test program: > > sched: RT throttling activated > > The same stick has no problem on my laptop and a Raspberry Pi. I'm running > debian jessie and I tested kernel kernel versions 3.8.13-bone67, > 3.14.23-ti-r34, and 3.18.0-rc5-bone1 which all had the problem. Any > thoughts? > -- 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]. For more options, visit https://groups.google.com/d/optout.
