From owner-freebsd-arm@FreeBSD.ORG Thu Jan 31 21:44:26 2013 Return-Path: Delivered-To: freebsd-arm@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 6C020AA2 for ; Thu, 31 Jan 2013 21:44:26 +0000 (UTC) (envelope-from ian@FreeBSD.org) Received: from duck.symmetricom.us (duck.symmetricom.us [206.168.13.214]) by mx1.freebsd.org (Postfix) with ESMTP id 161F3321 for ; Thu, 31 Jan 2013 21:44:19 +0000 (UTC) Received: from damnhippie.dyndns.org (daffy.symmetricom.us [206.168.13.218]) by duck.symmetricom.us (8.14.6/8.14.6) with ESMTP id r0VLiIQC014548 for ; Thu, 31 Jan 2013 14:44:19 -0700 (MST) (envelope-from ian@FreeBSD.org) Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by damnhippie.dyndns.org (8.14.3/8.14.3) with ESMTP id r0VLiGJO025356; Thu, 31 Jan 2013 14:44:16 -0700 (MST) (envelope-from ian@FreeBSD.org) Subject: Re: SD card -image- for the beaglebone From: Ian Lepore To: Iain Young In-Reply-To: <510AE1D6.8010203@g7iii.net> References: <510A4F5B.7000407@g7iii.net> <1359646574.93359.327.camel@revolution.hippie.lan> <510AE1D6.8010203@g7iii.net> Content-Type: text/plain; charset="us-ascii" Date: Thu, 31 Jan 2013 14:44:16 -0700 Message-ID: <1359668656.93359.339.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: freebsd-arm@FreeBSD.org X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Jan 2013 21:44:26 -0000 On Thu, 2013-01-31 at 21:27 +0000, Iain Young wrote: > On 31/01/13 15:36, Ian Lepore wrote: > > > So you're interested in a PPS driver for BeagleBone? That would be fun > > to play with, I wonder what the BB's timer hardware looks like? It'd be > > easy enough to do with a gpio interrupt I suspect, but the timing geek > > in me can't resist going for the nanosecond-accurate measurements when > > possible, even if it is kind of pointless for millisecond-accurate NTP. > > Yep. Planning on hooking up MSF, DCF, and TDF clocks to GPIO pins, as > well as some GPS units. Originally planned for doing this with some > Pi, but found the bone had serial ports and things developed from there > > Planning on abusing UART3's CTS pin for initial basic testing, as > radioclkd and radioclkd2 have only support for serial ports, but > then it will be working out what if anything I need to patch into the > kernel to get the PPS subsystem to listen to particular GPIO pins. > > Also planning to test PHK's ntpns, which has DCF support, > and should be easy to modify for MSF. Anyway, this is heading far > too quickly to being on-topic for time-nuts but off-topic here You might be surprised how many time nuts read this list, several of us do it for a living. -- Ian