From owner-cvs-all Tue Mar 30 1:30: 6 1999 Delivered-To: cvs-all@freebsd.org Received: from phk.freebsd.dk (phk.freebsd.dk [212.242.40.153]) by hub.freebsd.org (Postfix) with ESMTP id B8FA114D94; Tue, 30 Mar 1999 01:30:03 -0800 (PST) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.40.131]) by phk.freebsd.dk (8.9.1/8.8.8) with ESMTP id LAA09266; Tue, 30 Mar 1999 11:29:43 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.9.2/8.9.2) with ESMTP id LAA23522; Tue, 30 Mar 1999 11:29:38 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/sys timepps.h src/sys/i386/isa sio.c In-reply-to: Your message of "Tue, 30 Mar 1999 01:02:38 -0800." <199903300902.BAA24854@freefall.freebsd.org> Date: Tue, 30 Mar 1999 11:29:38 +0200 Message-ID: <23520.922786178@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk > Modified files: > sys/i386/isa sio.c > Log: > Add PPS-API support for DCD on serial ports. I tested this with my "Conrad DCF-77 Activ Antenna" (641146-62) DMK 79.95 And the following circuit: DB-25 DCF-77 2 ----------- GND 4 ----------- VCC 8 ---------+- OUT | 20 -- 10K --+ This is probably the simplest refclock interface I've seen yet. Now we just need somebody to write a ntpd refclock module which will grok the PPSAPI interface, any takers ? -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message