Date: Sat, 31 Dec 2016 13:23:15 +0100 From: Benny Goemans <benny.goemans@belgacom.net> To: Paul Mather <paul@gromit.dlib.vt.edu> Cc: George Rosamond <george@ceetonetechnology.com>, freebsd-arm@freebsd.org, owner-freebsd-arm@freebsd.org Subject: Re: Serial Cable for booting FreeBSD on the BeagleBone Black Message-ID: <5c521018b38d839824c63b4be953664d@belgacom.net> In-Reply-To: <C6EE33DA-68FC-4191-BD62-05FEBA0F0D08@gromit.dlib.vt.edu> References: <2E78FD95-C7DA-44A5-9E11-CA100DF0D97A@obsigna.com> <d2e53813-7b34-84a6-e508-a68e1214d09a@ceetonetechnology.com> <C6EE33DA-68FC-4191-BD62-05FEBA0F0D08@gromit.dlib.vt.edu>
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Paul Mather schreef op 2016-12-31 02:26: > 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. >>> >>> I read on https://wiki.freebsd.org/FreeBSD/arm/BeagleBoneBlack about >>> booting the BBB with FreeBSD, that I need to: >>> >>> "Connect a serial cable such as the FTDI TTL-232R 3.3v >>> or the Adafruit 4-pin cable" >>> >>> I am sorry, for needing to ask the obvious: >>> >>> - connect the serial cable to where and for what purpose? >> >> There are four pin connectors on the serial cable, black, green, white >> and red. >> >> There are six pins along one side of the BBBlack with pin 1 labeled >> "J1" >> >> pin1 black >> >> pin4 green >> >> pin5 white >> >> 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. For the record, you can also use screen. If I recall correctly the command line is 'screen /dev/<device> 115200' where 115200 is the baud rate. See the man page as well. For the location of the header, see [1] (which is the official BBB wiki). In case you're talking about the BBB Wireless, the header is right next to/above the processor/mem (the big 'Octavo' chip), image at [2]. [1] http://elinux.org/Beagleboard:BeagleBoneBlack [2] https://beagleboard.org/static/images/BeagleBoneBlackWireless_A3_horiz.jpeg Regards, Benny
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