not knowing what a bladerf is. how much current does it take to run it as the BBB cannot supply much on the USB
On 3/17/2015 8:38 AM, [email protected] wrote: > Hi, > Initially I developed and have successfully run code on a Dell laptop > running ubuntu 14.04LTS that works with the bladeRF over USB. The > bladeRF uses the 115 FPGA and is powered from the USB connection. I > then installed the same version of ubuntu on to a Beaglebone (not > Beaglebone black), and successfully loaded (sudo apt-get install) > bladerf and libbladerf-dev. Using gcc, I can compile and link the same > source code that successfully runs with the bladeRF on the Dell laptop > and do not have any compilation or linking errors. > > I boot up the Beaglebone (it is powered from a 5v, 2A supply) and ssh > to it from the laptop. Its USB port is powering the bladeRF. > bladeRF-cli -i runs on the Beaglbone. However, when I then try to > execute my program on the BeagleBone I now get the error message > "Failed to open device: Operation timed out" and if I then try > bladeRF-cli -i, I get the same error message. Resetting both the > Beaglebone and bladeRF returns me to where I can run the bladeRF > command line interface but Failed to open device error message always > occurs if I try to talk to the bladeRF under control of my code. > > If I ssh in to the bladeRF and run dmsg I get the following snippet: > > [ 1065.756546] ---[ end trace f563c3b8e9c0222e ]--- > [ 1065.891909] usb 1-1: reset high-speed USB device number 2 using > musb-hdrc > [ 1066.432034] usb 1-1: reset high-speed USB device number 2 using > musb-hdrc > [ 1066.971953] usb 1-1: reset high-speed USB device number 2 using > musb-hdrc > [ 1067.501938] usb 1-1: reset high-speed USB device number 2 using > musb-hdrc > > The same situation occurs regardless of whether I power the bladeRF > from an external 5v supply or power it from USB. The same situation > also occurs whether or not I use a powered USB hub connected to the > BeaglBone. So this seems to be an issue with the USB driver in Ubuntu > 14.04 on the BeagleBone. > > Has anyone else run in to this issue and resolved it? Anyone have any > troubleshooting suggestions? > > Thanks, > Ray > -- > 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] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout. -- 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.
