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From: Paul Mather <paul@gromit.dlib.vt.edu>
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Subject: Re: Serial Cable for booting FreeBSD on the BeagleBone Black
Date: Fri, 30 Dec 2016 20:26:26 -0500
In-Reply-To: <d2e53813-7b34-84a6-e508-a68e1214d09a@ceetonetechnology.com>
Cc: freebsd-arm@freebsd.org
To: George Rosamond <george@ceetonetechnology.com>
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Dr. Rolf Jansen,

On Dec 30, 2016, at 5:21 PM, George Rosamond =
<george@ceetonetechnology.com> wrote:

> Dr. Rolf Jansen:
>> I ordered my BeagleBone Black, and I will receive it next week.
>>=20
>> I read on https://wiki.freebsd.org/FreeBSD/arm/BeagleBoneBlack about =
booting the BBB with FreeBSD, that I need to:
>>=20
>>   "Connect a serial cable such as the FTDI TTL-232R 3.3v
>>    or the Adafruit 4-pin cable"
>>=20
>> I am sorry, for needing to ask the obvious:
>>=20
>> - connect the serial cable to where and for what purpose?
>=20
> There are four pin connectors on the serial cable, black, green, white
> and red.
>=20
> There are six pins along one side of the BBBlack with pin 1 labeled =
"J1"
>=20
> pin1 black
>=20
> pin4 green
>=20
> pin5 white
>=20
> and red is unused.


Using the AdaFruit FTDI Friend (https://www.adafruit.com/products/284 =
<https://www.adafruit.com/products/284>) is even simpler with the =
BeagleBone Black: just plug it directly into the J1 jumper mentioned =
above and everything lines up automagically. :-)

Once plugged in, connect it to your "serial terminal" (e.g., FreeBSD =
host system) via a mini-B to USB-A cable and use "cu" to connect.  Speed =
is 115200.  It even includes send and receive blinkenlights so you can =
see when data is flowing...

Cheers,

Paul.=