From owner-freebsd-arm@FreeBSD.ORG  Sat May 11 22:44:46 2013
Return-Path: <owner-freebsd-arm@FreeBSD.ORG>
Delivered-To: freebsd-arm@freebsd.org
Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115])
 by hub.freebsd.org (Postfix) with ESMTP id 8821CACD
 for <freebsd-arm@freebsd.org>; Sat, 11 May 2013 22:44:46 +0000 (UTC)
 (envelope-from kientzle@acm.org)
Received: from monday.kientzle.com (99-115-135-74.uvs.sntcca.sbcglobal.net
 [99.115.135.74]) by mx1.freebsd.org (Postfix) with ESMTP id 4B133D81
 for <freebsd-arm@freebsd.org>; Sat, 11 May 2013 22:44:45 +0000 (UTC)
Received: (from root@localhost)
 by monday.kientzle.com (8.14.4/8.14.4) id r4BMiir1081009;
 Sat, 11 May 2013 22:44:44 GMT (envelope-from kientzle@acm.org)
Received: from [192.168.2.123] (CiscoE3000 [192.168.1.65])
 by kientzle.com with SMTP id wsj2hbqg5z2kh3fr3adb7xx9q2;
 Sat, 11 May 2013 22:44:44 +0000 (UTC)
 (envelope-from kientzle@acm.org)
Subject: Re: Connecting to Beablebone
Mime-Version: 1.0 (Apple Message framework v1283)
Content-Type: text/plain; charset=us-ascii
From: Tim Kientzle <kientzle@acm.org>
In-Reply-To: <CALCpEUHMYvtnH-A4M2xDNiRqTGsyF5fYEnQo8nNY-9UxZCEdFw@mail.gmail.com>
Date: Sat, 11 May 2013 15:44:43 -0700
Content-Transfer-Encoding: quoted-printable
Message-Id: <DABEE6F7-BC8C-4D14-9515-1500AE744AE6@acm.org>
References: <CALCpEUGGUjZkciUARw-54qEnbN+Fequ_iQ46gEcw4G=Td+Msiw@mail.gmail.com>
 <CAGtf9xNs1M=Jz=G2EMNyeowzD33sUEZ3ukUnCe_2sAAhXyMk-Q@mail.gmail.com>
 <CALCpEUG2gA1a=qxHTYg7utsjePFBY4b++HuJdkvfsU1zqAOGuw@mail.gmail.com>
 <20130510024232.GA10543@thinkbsd.divinix.org>
 <CALCpEUGKYkOcGRTdVwvZoO1gm23XmnVV3SwkNzJVXvnBMK+M=g@mail.gmail.com>
 <CALCpEUE26fR-oXTGiG5yoNksoyqnUx7N+oTWuheO9P-Kfbn-dw@mail.gmail.com>
 <CD9C587D-5124-46E5-9A12-FE92B3F03139@acm.org>
 <CALCpEUHMYvtnH-A4M2xDNiRqTGsyF5fYEnQo8nNY-9UxZCEdFw@mail.gmail.com>
To: hiren panchasara <hiren.panchasara@gmail.com>
X-Mailer: Apple Mail (2.1283)
Cc: freebsd-arm <freebsd-arm@freebsd.org>
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Porting FreeBSD to the StrongARM Processor <freebsd-arm.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm>
List-Post: <mailto:freebsd-arm@freebsd.org>
List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 11 May 2013 22:44:46 -0000


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:
>>=20
>> On May 11, 2013, at 12:59 AM, hiren panchasara wrote:
>>=20
>>> I found one of these:
>>> =
http://www.amazon.com/gp/product/B006JKNWLE/ref=3Doh_details_o06_s00_i00?i=
e=3DUTF8&psc=3D1
>>>=20
>>> 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
>>>=20
>>> I can still not see anything after connecting to "cu -l cuaU0".
>>=20
>> You probably need to set the speed:
>>=20
>>  cu -s 115200 -l cuaU0
>=20
> 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.

Tim