diff options
| -rw-r--r-- | chip/stm32/clock-stm32h7.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/chip/stm32/clock-stm32h7.c b/chip/stm32/clock-stm32h7.c index 72f904c4ed..696105b4f1 100644 --- a/chip/stm32/clock-stm32h7.c +++ b/chip/stm32/clock-stm32h7.c @@ -478,6 +478,15 @@ void __idle(void) if (DEEP_SLEEP_ALLOWED && next_delay > LPTIM_PERIOD_US + STOP_MODE_LATENCY) { + /* + * Sleep time MUST be smaller than watchdog period. + * Otherwise watchdog will wake us from deep sleep + * which is not what we want. Please note that this + * assert won't fire if we are already part way through + * the watchdog period. + */ + ASSERT(next_delay < CONFIG_WATCHDOG_PERIOD_MS * MSEC); + /* deep-sleep in STOP mode */ idle_dsleep_cnt++; |