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Associate
April 23, 2026
Question

[STM32H563] [STM32CubeMx] Unable to enable PTP

  • April 23, 2026
  • 1 reply
  • 111 views

Hello,
For one of my project, my goal is to use PTP to synchronise multiple STM32H563 to one host.
However, when configuring the ETH Device, I can only enable RMII, as the "RMII_PTP_SYNCHRO" is greyed out.
I've read the pop up that tells me to enable TIM2 as a slave with trigger source "ETR1 through Remap", Channel 1 as "Input Capture direct mode from Remap".
 And both "remap capabilities" are set to "is connected to ETH_PPS".
Is there something that I'm missing ?
Best regards

1 reply

Technical Moderator
April 27, 2026

Hello @AMouton 

Thanks for highlighting this behavior,

I will check it internally and get back to you ASAP.

KR, Souhaib

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