[arm-allstar] 1.2.1 BBB Device Tree question

[Doug Crompton]

Joel,

 If you look at the Adafruit adapter with cable leads. All you would do is cut the lead  to the length you want and connect three wires rxd, txd, and ground to the protoboard. Obviously disconnect the rxd and txd to the BBB gpio.
73 Doug
WA3DSP
http://www.crompton.com/hamradio


Date: Mon, 15 Dec 2014 14:25:06 -0600
From: w0kgw3 at gmail.com
To: arm-allstar at hamvoip.org
Subject: Re: [arm-allstar] 1.2.1 BBB Device Tree question

Doug,

I created a soldered protoboard for the GPS, it's not easy to move it to an external USB adapter.
Cheers,
Joel
W0KGW


On Mon, Dec 15, 2014 at 10:22 AM, Doug Crompton <doug at crompton.com> wrote:


Joel,

 In short the I/O stuff (cape manager) is not in the kernel we are using. It was a compromise as there were so many other improvements important to stable operation in this kernel so we decided to use it. We are hoping to get that back in for the next release. For now I would recommend a usb to serial adapter. They work fine. Adafruit has one for $10 if you just need rxd and txd and there are many other that would also work fine. This would come up as something like /dev/usbtty0 etc.

In general there is nothing wrong with using the USB adapters. They offer an amount of isolation from the I/O bus and involve less programming. It is certainly an acceptable alternative.

http://www.adafruit.com/products/954?gclid=CLDBk-G5yMICFalj7AodOH0Avg

73 Doug
WA3DSP
http://www.crompton.com/hamradio


Date: Mon, 15 Dec 2014 09:37:08 -0600
From: w0kgw3 at gmail.com
To: arm-allstar at hamvoip.org
Subject: [arm-allstar] 1.2.1 BBB Device Tree question

I've been trying to figure out how to get ttyO4 working again for my 
GPS connection, it used a device tree in the old kernel. The new kernel seems to have done away with the cape manager, so all the work I did is worthless now.

Does anyone know how
 is it done with the new 3.16 kernel? I'm striking out everywhere, and 
google is failing me.

Cheers,
Joel
W0KGW



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