Re: [Linuxptp-users] E2E Protocol

2017-01-25 Thread Richard Cochran
On Wed, Jan 25, 2017 at 03:49:48PM +0800, Hardik Gohil wrote: > yes using dual emac mode. That explains it. I don't think dual emac and cpts will work together. At least I never tested it. > sorry for late response. No problem. Thanks, Richard

Re: [Linuxptp-users] E2E Protocol

2017-01-22 Thread Richard Cochran
On Mon, Jan 23, 2017 at 09:58:22AM +0800, Hardik Gohil wrote: > currently I am using eth0 as peer device. And are you using dual_emac mode? Thanks, Richard -- Check out the vibrant tech community on one of the world's

Re: [Linuxptp-users] E2E Protocol

2017-01-22 Thread Richard Cochran
On Thu, Jan 19, 2017 at 04:51:23PM +0800, Hardik Gohil wrote: > both MAC means eth0 and eth1 you mean ? yes they are active. > active_slave = <0>; So is there a PTP peer device connected on slave 1 (probably =eth1) as well? That would explain the messages, as the

Re: [Linuxptp-users] E2E Protocol

2017-01-17 Thread Hardik Gohil
On Mon, Jan 16, 2017 at 8:09 PM, Richard Cochran wrote: > On Mon, Jan 16, 2017 at 04:19:15PM +0800, Hardik Gohil wrote: > > I have a message when I configure GPS to work PTP in Peer-to-Peer mode > > It is not enough to configure the master alone, you must also >

Re: [Linuxptp-users] E2E Protocol

2017-01-16 Thread Richard Cochran
On Mon, Jan 16, 2017 at 04:19:15PM +0800, Hardik Gohil wrote: > I have a message when I configure GPS to work PTP in Peer-to-Peer mode It is not enough to configure the master alone, you must also configure the slave in P2P mode. > ptp4l[18815.624]: port 1: received PDELAY_REQ without timestamp

Re: [Linuxptp-users] E2E Protocol

2017-01-13 Thread Hardik Gohil
On Fri, Jan 13, 2017 at 4:07 PM, Richard Cochran wrote: > On Fri, Jan 13, 2017 at 03:31:14PM +0800, Hardik Gohil wrote: > > I would like to know the accuracy of time synchronization ? > > you mean I need to generate PPS signal from CPU ? after that what should be next

Re: [Linuxptp-users] E2E Protocol

2017-01-13 Thread Richard Cochran
On Fri, Jan 13, 2017 at 03:31:14PM +0800, Hardik Gohil wrote: > I would like to know the accuracy of time synchronization ? Then you need to measure it, using a PPS signal for example. > And the difference between path delay and master offset ? The path delay is the measured Ethernet

Re: [Linuxptp-users] E2E Protocol

2017-01-12 Thread Hardik Gohil
I would like to know the accuracy of time synchronization ? And the difference between path delay and master offset ? the value of master offset is the accuracy value ? Regards, Hardik A Gohil On Fri, Jan 13, 2017 at 11:23 AM, Dale Smith wrote: > Offset and

Re: [Linuxptp-users] E2E Protocol

2017-01-12 Thread Dale Smith
Offset and Delay are in nanoseconds. The Frequency is (I'm pretty sure) in parts-per billion. -Dale On Thu, Jan 12, 2017 at 8:40 PM, Hardik Gohil wrote: > Hello, > > I am working on Linux 3.12 running on TI AM335x. > > The Test system is GPS connected to CPU over