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Subject: Re: pwm for raspberry pi?
From: Daniel Braniss <danny@cs.huji.ac.il>
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Date: Tue, 26 May 2015 09:13:44 +0300
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To: Luiz Otavio O Souza <lists.br@gmail.com>
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> On May 26, 2015, at 1:14 AM, Luiz Otavio O Souza <lists.br@gmail.com> =
wrote:
>=20
> On 25 May 2015 at 07:52, Daniel Braniss wrote:
>> Hi,
>> Now that I=E2=80=99m rapping up my spi/rfid driver (available on =
demand :-),
>> I would like to use the pwm interface to power on/off a lock, but
>> have no idea how to go around it, so any clues would be mostly =
welcomed.
>>=20
>> cheers,
>>        danny
>=20
> The PWM module is quite simple and has only two outputs, they can be
> used only with recent 40 GPIO pins header (RPi-B+ or RPi2), in the
> older models only one output was wired.
>=20
I do have a B+

> The bcm2835 peripherals datasheet describes the PWM module registers

I=E2=80=99ve read it, hence I know it=E2=80=99s possible, what I=E2=80=99 =
missing is how to access it via
FreeBSD. There is a some mention for the BeagleBoneBlack, but it seems
broken, the FDT mentions the pins. Too many leads but not enough info
on how to tie them up :-)

cheers,
	danny