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fix(ulp): Fix accumulation of wakeup cause bits in ULP

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Closes https://github.com/espressif/esp-idf/issues/15794
This commit is contained in:
Konstantin Kondrashov
2025-04-16 09:46:29 +03:00
parent 916f1992bd
commit d41fc36511
2 changed files with 3 additions and 0 deletions
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2
components/ulp/lp_core/lp_core/include/ulp_lp_core_utils.h
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@@ -17,6 +17,8 @@ extern "C" {
/**
* @brief Traverse all possible wake-up sources and update the wake-up cause so that
* ulp_lp_core_get_wakeup_cause can obtain the bitmap of the wake-up reasons.
* @note Do not call it from user ULP programs because it will clear the wake-up cause bits
* which were set at ULP startup in lp_core_startup().
*/
void ulp_lp_core_update_wakeup_cause(void);

1
components/ulp/lp_core/lp_core/lp_core_utils.c
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@@ -34,6 +34,7 @@ static uint32_t lp_wakeup_cause = 0;
void ulp_lp_core_update_wakeup_cause(void)
{
lp_wakeup_cause = 0;
if ((lp_core_ll_get_wakeup_source() & LP_CORE_LL_WAKEUP_SOURCE_HP_CPU) \
&& (pmu_ll_lp_get_interrupt_raw(&PMU) & PMU_HP_SW_TRIGGER_INT_RAW)) {
lp_wakeup_cause |= LP_CORE_LL_WAKEUP_SOURCE_HP_CPU;