PTP (IEEE 1588) Library

[macaba]

This thread is really to firstly gauge the interest there might be in a Teensy PTP library, then to possibly document any progress.

PTP aka IEEE1588 allows for much tighter synchronization between systems on the same subnet.

I am tempted to write one and do a proof of concept where it triggers a digitalWriteFast to occur at the same time on 2 networked Teensy's and see how close they come...

The likely platform will be a Teensy 3.1 with a WIZ820IO module, using the interrupt line for consistent timestamping (crucial for PTP).

[slomobile]

This thread is now several years old but still a top Google search result on Teensy IEEE1588.
I want it to reflect at least some level of interest.
I would use such a library if it existed.
My use case would be synchronizing output events outdoors (light show, fountains), with input events indoors(music, touch panel, script).

[acheesehead]

I am interested in this. What is the current status? How does the Teensy 4.0 support IEEE1588? Firmware or ???

[acheesehead]

Just to confirm my background...I am actively using 801.1AS software on an Analog Devices FIDO5200. I am synchronizing at 20 nSec between 2 development boards.

[acheesehead]

Whoops. 802.1AS.