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Date:      Thu, 6 Mar 2014 14:10:22 +0000
From:      fabiodive <fabiodive@gmail.com>
To:        Luiz Otavio O Souza <lists.br@gmail.com>
Cc:        "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: TI AM335x ADC support (on BeagleBone Black)
Message-ID:  <64573951-E47F-4384-A016-8F65FCD72B56@gmail.com>
In-Reply-To: <CAB=2f8wJCz20QPbyYjrWixmazoDXmi6oQccgx6eAu%2BPJNVHXoA@mail.gmail.com>
References:  <531851D6.5060308@hot.ee> <CAB=2f8wJCz20QPbyYjrWixmazoDXmi6oQccgx6eAu%2BPJNVHXoA@mail.gmail.com>

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ADC support would be a great feature!
I hope to contribute as well, Luiz, in case you write
some code I can try it, I will also try to read the documentation
to see if I can achieve some results.
Thank you
f.


On Mar 6, 2014, at 14:02 , Luiz Otavio O Souza <lists.br@gmail.com> =
wrote:

> On 6 March 2014 07:45, Sulev-Madis Silber (ketas) wrote:
>> Hello.
>>=20
>> I'm trying to figure out how hard would it be to get ADC working on =
my BBB.
>>=20
>> Most of things seem to work (except some content on eMMC seemed to
>> interfere with eMMC / USB - works with clean eMMC). Also 11-CURRENT =
(at
>> least r262309) is stable on it while running my PERL-POE daemon [1]
>>=20
>> While I can fix some GPIO "just I/O" related things (like some pins =
seem
>> to be "lost"), I don't feel comfortable with writing device drivers
>> right now. I read almost all the AM335x related IO code and then TI =
ADC
>> driver code for Linux but I don't see myself getting anything done =
here
>> alone (or it takes years). Maybe someone else works on those things
>> already? I can test code to verify correct operation of ADC.
>>=20
>> Also, should watchdog work? It's in kernel (running "BEAGLEBONE" now)
>> and there is /dev/fido but that can't be used?
>>=20
>>=20
>> [1] http://ketas.si.pri.ee/bbb-poe-daemon/
>>=20
>>=20
>> --
>> ketas
>=20
> Hello Ketas,
>=20
> I've started read the ADC chapter on TRM a couple of times but i'm yet
> to finish it.
>=20
> It is on my plans write a driver for the ADC unless someone beat me =
here.
>=20
> Looks like there is no watchdog driver for am335x, another good chance
> for practice a little bit.
>=20
> Cheers,
> Luiz
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