[arm-allstar] 1.2.1 BBB Device Tree question

[Joel Jameson]

The USB serial option doesn't handle the PPS output from the GPS at all,
that's something that I had working for a more precise time setup for the
other things I run as well.



Cheers,
Joel
W0KGW

On Mon, Dec 15, 2014 at 3:19 PM, Doug Crompton <doug at crompton.com> wrote:
>
> 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 DougWA3DSPhttp://www.crompton.com/hamradio
> <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 DougWA3DSPhttp://www.crompton.com/hamradio
> <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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>
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>
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>
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>
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