Connecting to Beablebone

[John Hixson]

On Thu, May 09, 2013 at 07:12:15PM -0700, hiren panchasara wrote:
> On Thu, May 9, 2013 at 6:51 PM, Ganbold Tsagaankhuu <ganbold at gmail.com> wrote:
> >
> >
> >
> > On Fri, May 10, 2013 at 9:47 AM, hiren panchasara
> > <hiren.panchasara at gmail.com> wrote:
> >>
> >> Hi list,
> >>
> >> I've built img using crotchet scripts (great work!) a few days back
> >> from HEAD and followed instructions at
> >> https://wiki.freebsd.org/FreeBSD/arm/BeagleBoneBlack.
> >>
> >> Now,
> >>
> >> After powering up I connected the debug USB cable from BB to my laptop
> >> (running HEAD).
> >>
> >> dmesg shows:
> >>
> >> ugen0.5: <Texas Instruments> at usbus0
> >> umodem0: <Texas Instruments AM335x USB, class 2/0, rev 2.00/0.00, addr
> >> 5> on usbus0
> >> umodem0: data interface 1, has no CM over data, has no break
> >>
> >> /dev shows following new entries:
> >>
> >> crw-rw----  1 uucp    dialer     0x97 May  9 18:13 cuaU0
> >> crw-rw----  1 uucp    dialer     0x98 May  9 18:13 cuaU0.init
> >> crw-rw----  1 uucp    dialer     0x99 May  9 18:13 cuaU0.lock
> >> crw-------  1 root    wheel      0x94 May  9 18:13 ttyU0
> >> crw-------  1 root    wheel      0x95 May  9 18:13 ttyU0.init
> >> crw-------  1 root    wheel      0x96 May  9 18:13 ttyU0.lock
> >> lrwxr-xr-x  1 root    wheel        9B May  9 18:13 ugen0.5 -> usb/0.5.0
> >> crw-rw-rw-  1 root    wheel       0xe May  9 18:11 null
> >> crw-------  1 root    wheel      0x1b May  9 18:10 bpf
> >>
> >> Trying to connecting to it:
> >>
> >> % sudo cu -l /dev/cuaU0
> >> Connected
> >
> >
> >
> > No need to set speed?
> 
> This is what I had:
> 
> % sudo stty -f /dev/ttyU0
> speed 9600 baud;
> lflags: echoe echoke echoctl
> oflags: tab0
> cflags: cs8 -parenb
> 
> I tried setting to different ones without success:
> 
> flymockour-l7%  sudo stty -f /dev/ttyU0
> speed 115200 baud;
> lflags: -icanon -isig -echo echoe echok echoke echoctl
> iflags: -icrnl -ixany -imaxbel ignpar
> oflags: -opost -onlcr tab0
> cflags: cs8 -parenb -hupcl clocal
> 
> Thanks,
> Hiren
> >
> > Ganbold
> >
> >
> >>
> >>
> >> Its stays stuck there without doing anything. Same with ttyU0. Is that
> >> not how you connect to this thing?
> >>
> >> In my quest of understanding /dev entries, I found: ttyU0 is actual
> >> tty device and cuaU0 is a callback device?
> >>
> >> Also,  I am not getting those blue usb lights turned on. Not sure if
> >> that means something.
> >>
> >> I am sure I must be doing something really silly. Any help would be great.
> >>
> >> cheers,
> >> Hiren
> >> _______________________________________________


I got one of these and it works fine:

http://www.adafruit.com/products/954

- John