[Linuxptp-users] How to configure a grand master

2018-08-01 Thread Keith Squier
I am new to PTP and having some difficulty setting up and configuring a grand master. Most of the documentation I have found talk about setting up slaves to grand masters but not configuring a grand master. In my setup, I have two machines on a LAN. One has a GPS receiver that provides a 1PPS in a

Re: [Linuxptp-users] How to configure a grand master

2018-08-13 Thread Keith Squier
ronize a system to a GPS receiver, or am I overthinking things? On Wed, Aug 1, 2018 at 10:34 PM Richard Cochran wrote: > On Wed, Aug 01, 2018 at 04:00:02PM -0500, Keith Squier wrote: > > 1. How do I get the time from the GPS receiver to PTP? > > Ideally you feed the 1 PPS from the GP

Re: [Linuxptp-users] How to configure a grand master

2018-08-13 Thread Keith Squier
AM Richard Cochran wrote: > On Mon, Aug 13, 2018 at 09:43:13AM -0500, Keith Squier wrote: > > How do I feed the 1 PPS to the PHC? Do I use phc2sys? > > No, you must physically connect the output pin of the GPS to the input > pin of your MAC. (Of course, make sure the signals

[Linuxptp-users] imx6 synchronization problems

2018-12-04 Thread Keith Squier
I'm at a lost as to what to do next. I have an embedded system with an imx6 using the fec driver. It will properly sync to a master when using software timestamps, but it will never sync when using hardware timestamps. When I make the system behave as a master clock and use phc2sys with "-a -r -r"

Re: [Linuxptp-users] imx6 synchronization problems

2018-12-05 Thread Keith Squier
lk about setting up the device tree? On Wed, Dec 5, 2018 at 8:15 AM Hannes Mayr wrote: > Hi Keith, > > On 05/12/2018 00:02, Keith Squier wrote: > > > I'm at a lost as to what to do next. I have an embedded system with an > > imx6 using the fec driver. It will properly

Re: [Linuxptp-users] imx6 synchronization problems

2018-12-13 Thread Keith Squier
2018 at 5:47 AM Hannes Mayr wrote: > On 05/12/2018 16:27, Keith Squier wrote: > > Hannes, > > I was thinking that it could be a driver issue. I never thought about > > the device tree, but it could be that. At this point, I'm not ruling > > anything out. I'm

Re: [Linuxptp-users] How to configure a grand master

2018-12-26 Thread Keith Squier
(Do I need to use the -d option to pass /dev/pps0?) Are there any downsides to this? On Mon, Aug 13, 2018 at 5:35 PM Chris Caudle wrote: > I am replying to a digest, hopefully the message headers are still OK. > > > From: Keith Squier > > > How do I feed the 1 PPS to the PHC?