Date: Sun, 12 May 2013 13:02:09 -0700 From: hiren panchasara <hiren.panchasara@gmail.com> To: Tim Kientzle <kientzle@acm.org> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: Connecting to Beablebone Message-ID: <CALCpEUEQHu%2BykqP7ugkyfY__HonkKHbkF2o8UPq2c94jvNFRbw@mail.gmail.com> In-Reply-To: <CALCpEUG=hkNa1-9GNgZhgNh2g32L8tse_-ydjG6QiL=3qfVHrg@mail.gmail.com> References: <CALCpEUGGUjZkciUARw-54qEnbN%2BFequ_iQ46gEcw4G=Td%2BMsiw@mail.gmail.com> <CAGtf9xNs1M=Jz=G2EMNyeowzD33sUEZ3ukUnCe_2sAAhXyMk-Q@mail.gmail.com> <CALCpEUG2gA1a=qxHTYg7utsjePFBY4b%2B%2BHuJdkvfsU1zqAOGuw@mail.gmail.com> <20130510024232.GA10543@thinkbsd.divinix.org> <CALCpEUGKYkOcGRTdVwvZoO1gm23XmnVV3SwkNzJVXvnBMK%2BM=g@mail.gmail.com> <CALCpEUE26fR-oXTGiG5yoNksoyqnUx7N%2BoTWuheO9P-Kfbn-dw@mail.gmail.com> <CD9C587D-5124-46E5-9A12-FE92B3F03139@acm.org> <CALCpEUHMYvtnH-A4M2xDNiRqTGsyF5fYEnQo8nNY-9UxZCEdFw@mail.gmail.com> <DABEE6F7-BC8C-4D14-9515-1500AE744AE6@acm.org> <CALCpEUG=hkNa1-9GNgZhgNh2g32L8tse_-ydjG6QiL=3qfVHrg@mail.gmail.com>
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On Sun, May 12, 2013 at 12:54 PM, hiren panchasara <hiren.panchasara@gmail.com> wrote: > On Sat, May 11, 2013 at 3:44 PM, Tim Kientzle <kientzle@acm.org> wrote: >> >> On May 11, 2013, at 1:30 PM, hiren panchasara wrote: >> >>> On Sat, May 11, 2013 at 9:11 AM, Tim Kientzle <kientzle@acm.org> wrote: >>>> >>>> On May 11, 2013, at 12:59 AM, hiren panchasara wrote: >>>> >>>>> I found one of these: >>>>> http://www.amazon.com/gp/product/B006JKNWLE/ref=oh_details_o06_s00_i00?ie=UTF8&psc=1 >>>>> >>>>> And I've connected it to laptop as shown in: >>>>> http://www.strugglingcoder.info/pics/bb1.jpg >>>>> and on beaglebone as shown in: http://www.strugglingcoder.info/pics/bb2.jpg >> >> There's no DNS entry for struggling.dyndns-home.com >> >>>>> As per the schematic info I derived: >>>>> Pin 1: GND >>>>> Pin 4: RX >>>>> Pin 5: TX >>>>> >>>>> I can still not see anything after connecting to "cu -l cuaU0". >>>> >>>> You probably need to set the speed: >>>> >>>> cu -s 115200 -l cuaU0 >>> >>> Doesn't seem to help. I've been following instructions at >>> https://wiki.freebsd.org/FreeBSD/arm/BeagleBoneBlack >> >> >> I have noticed with the Adafruit cable that the serial connection >> sometimes just stops when I reboot or cycle the power. >> >> The following seems to reliably restart the serial port: >> * Leave the serial cable connected. >> * Remove power from the BBB >> * Press and hold the boot switch >> * Plug power back in while holding the boot switch. >> * Count to three and release the boot switch >> >> Finally, of course, are you sure that your cable is >> supported by your laptop? USB-to-serial adapters >> seem to be surprisingly variable. > > Huh, usb-to-serial cable was acting funny. It seems to be doing its thing now. > > BTW, If I hole boot switch and plug in power, I only see "CCCC...." on > the console. If I plug power without that, I am getting things. (which > seems to be stuck on uboot but thats another story). Interesting. It booted just fine with holding boot switch and plugging in power this time around. "Count to three" trick worked :D cheers, Hiren > > Building new image right now and see how it goes. > > Thanks a ton to all for your help. > > cheers, > Hiren >> >> Tim >> >> >>
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