Open Source Summit Europe 2024

In order for highly distributed communication to function well, there must be a reliable time source and a way to synchronize time between devices. In applications such as automotive and industrial control, the requirements here can be strict and subject to regulatory constraints. Precision Time Protocol (PTP) is a response to these hard time synchronization requirements by achieving clock accuracy in the sub-microsecond range.

As Zephyr becomes more broadly used in these environments, it needs support for precision timekeeping. This talk will cover a brief overview of PTP, discussion of various implementation choices for Zephyr, challenges along the way and upstreaming plans.