Skip to content

arch/arm/stm32h7: fix the period of the PPS output #20236

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
acassis merged 1 commit into from
Sep 22, 2026
+3 −4
Merged

arch/arm/stm32h7: fix the period of the PPS output #20236

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 3 additions & 4 deletions arch/arm/src/stm32h7/stm32_ethernet.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -296,13 +296,12 @@
* second and a width of half of it, that starts at a whole second of the
* system time. The first pulse is at least STM32_PTP_PPS_MARGIN_NS ahead,
* so the target time is loaded before it. The interval and the width are
* in increments of the system time, minus one.
* in increments of the system time.
*/

# define STM32_PTP_PPS_MARGIN_NS (100000000)
# define STM32_PTP_PPS_INTERVAL (NSEC_PER_SEC / STM32_PTP_SSINC - 1)
# define STM32_PTP_PPS_WIDTH ((NSEC_PER_SEC / 2) / \
STM32_PTP_SSINC - 1)
# define STM32_PTP_PPS_INTERVAL (NSEC_PER_SEC / STM32_PTP_SSINC)
# define STM32_PTP_PPS_WIDTH ((NSEC_PER_SEC / 2) / STM32_PTP_SSINC)
# endif
#endif

Expand Down
Loading