Hi! It is a noise from a socket type power adaptor. What really matter is that BBB does not more recognise USB, even if reboot.
I tryied many USB-RS232 adapters (without external powering USB slaves). The connection is unstable. dmesg show ftdi related problems (unable to change speed or other iocntl). BBB is powered with only 1A adaptor. I'll try a better one. Il giorno giovedì 12 dicembre 2013 20:44:39 UTC+1, Gerald ha scritto: > > I have not heard that noise before. > > Gerald > > > > On Thu, Dec 12, 2013 at 12:33 PM, MV <[email protected] <javascript:>>wrote: > >> Problems arise anyway after random time with ftdi USB-RS232 adapters. >> >> If I connect a self powered HUB or self powered Arduino I can ear >> something become noisy: "zzzzzzzzzzz...". >> >> Is this a known problem ? >> >> Thanks >> >> >> >> >> -- >> 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] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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/groups/opt_out.
