Skip to main content
mishka
mishka
Visitor II
August 16, 2018
Question

How to use stm32h7 Ethernet PTP Auxiliary snapshots with external events feature?

  • August 16, 2018
  • 1 reply
  • 990 views

Hi. I must use PTP and also precisely capture 1PPS input as a backup/alternative sync source.

In the manual DocID029587 Rev 3, page 2705, there is a secion "Auxiliary snapshots with external events" in which ptp_aux_ts_trig_i is mentioned. But I can't find this signal anywere (and ptp_aux_trig_i also).

What pin to use for 1PPS signal and how to configure Auxiliary trigger?

    This topic has been closed for replies.

    1 reply

    I
    Imen.D
    ST Technical Moderator
    August 17, 2018

    Hello @mishka​ ,

    PTP and PPS signals are described in the RM0433 reference manual (Rev 5), Table 92. Peripherals interconnect matrix details (page 554 and 569).

    0690X000006BuGvQAK.png0690X000006BuGqQAK.png

    We will align the signal names in the coming release of the STM32H7 reference manual, as this makes confused to the user.

    With Regards,

    Imen.

    In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks
    Terms & ConditionsAccessibility statement