Commit c8e1fdf2 authored by Francois Ramu's avatar Francois Ramu Committed by Anas Nashif
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soc: stm32 devices have lower tick with lower sysclock 



For stm32 platforms where the sysclock is less or equal to
32MHz, the Ticks per second is reduced to 8000 (instead of
10000).

Signed-off-by: default avatarFrancois Ramu <francois.ramu@st.com>
parent d561b506

soc/st/stm32/Kconfig.defconfig

+4 −0
Original line number Diff line number Diff line
@@ -25,6 +25,10 @@ config LOG_BACKEND_SWO_REF_FREQ_HZ 
	default "$(DT_STM32_RCC_CLOCK_FREQ)" if "$(dt_nodelabel_enabled,rcc)"

	depends on LOG_BACKEND_SWO



# Tick of 10000 is too high for a sysclock lower than 32MHz

config SYS_CLOCK_TICKS_PER_SEC

	default 8000 if SYS_CLOCK_HW_CYCLES_PER_SEC <= 32000000



# set the tick per sec as a divider of the LPTIM clock source

# with a minimum value of 4096 for SYS_CLOCK_TICKS_PER_SEC to keep

# SYS_CLOCK_TICKS_PER_SEC not too high compared to the LPTIM counter clock

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