Date: Fri, 30 Dec 2016 20:26:26 -0500 From: Paul Mather <paul@gromit.dlib.vt.edu> To: George Rosamond <george@ceetonetechnology.com> Cc: freebsd-arm@freebsd.org Subject: Re: Serial Cable for booting FreeBSD on the BeagleBone Black Message-ID: <C6EE33DA-68FC-4191-BD62-05FEBA0F0D08@gromit.dlib.vt.edu> In-Reply-To: <d2e53813-7b34-84a6-e508-a68e1214d09a@ceetonetechnology.com> References: <2E78FD95-C7DA-44A5-9E11-CA100DF0D97A@obsigna.com> <d2e53813-7b34-84a6-e508-a68e1214d09a@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. >> >> 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.
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