michaelh/zephyr
1
0
Fork 0
Code Releases Activity

soc: stm32 decrease ticks per sec if sysclock is not LPTIM

Browse source 
Reduce the ticks per sec when the sysclock is low and
not LPTIM.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2024-08-30 14:41:38 +02:00 • committed by Carles Cufí
commit 0fd7028eeb
1 changed files with 2 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
soc/st/stm32/Kconfig.defconfig
View file

@ -25,9 +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
# If sysclock is not LPTIM, tick of 10000 is too high for a frequency lower than 32MHz
config SYS_CLOCK_TICKS_PER_SEC
default 8000 if SYS_CLOCK_HW_CYCLES_PER_SEC <= 32000000
depends on !STM32_LPTIM_TIMER
# 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