I have two thumb drives same manufacture, different models. One drive I can insert and it mounts just fine with a udev rule. I can take that drive in and out as many times as I like and it always mounts and unmounts. The other drive will lock up the Host, I can reset it by reading \dev\bus\usb\001\001 file. Curious why one drive works all the time and the other fails, I put an Oscilloscope on the USB host Power P3-p1, noticed a small voltage 250mv sag when inserting the drive that always works, the drive that always fails has a dip of 1V. I placed a 10V 150uF Tantalum capacitor between U8 Pins 6,7 & 8 and ground to stiffen up the rail. now both drives work without fail. Hope this helps.
troy On Saturday, August 31, 2013 8:42:09 AM UTC-7, jez...@gmail.com wrote: > > I'm using my Beaglebone Black with a USB temperature sensor. It works very > well, however I noticed monitoring stopped last night after roughly 35 days > uptime. This morning I looked more closely into the log file and noticed: > > kernel: [2892926.929555] CAUTION: musb: Babble Interrupt Occurred > > I wasn't able to successfully reset the USB device and before I was able > to restart the BBB stopped responding. I power-cycled it and it was back to > normal again. Any ideas what caused this kernel message? > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
