Need help with project - NUCLEO-F746ZG, NTP, Time Stamping Events

[Phvne]

Hello! I am currently working on a project involving a NUCLEO-F746ZG board that is connected to a local NTP server and another board (let's call it X). My board needs to be synchronized with the NTP server and receive 3 pairs of timestamps from board X. These 3 pairs represent 3 time intervals during which my board must allow a signal to pass through it and reach board X. I can compare my board to a valve that lets water flow through a pipe at a specific time. My board should not introduce latencies greater than 1ms (I understand that NTP can achieve these performance levels), and because of this, I think synchronization with the NTP server should be done quite frequently. Could you give me some advice on how to start this project and what I would need? Maybe some materials would be helpful. Thank you in advance.

[MM..1]

If you speak about ethernet pass through isnt real term.

[Phvne]

Nope. It's another thing. It s an analog signal. I could say that I need to turn on an LED in that time interval and could be the same. Passing the signal is different from ethernet problem

[MM..1]

I mean NTP with ms precision is hard job. Other when your time is ok you can use timestamps with precision of your local time

[Tesla DeLorean]

Thought of using GPS/GNSS ?

[Phvne]

It has to be done using NTP. First thing first I just need to do this thing, and then after I will chase the dream of sub 1ms.

[Tesla DeLorean]

SNTP and Input Capture on 3 or 4 channels of a 32-bit shouldn't be too complicated.