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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 26d5744fea
commit 7e868599b1
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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@ -16,6 +16,8 @@ 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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@ -24,6 +24,7 @@ static uint32_t lp_wakeup_cause = 0;
void ulp_lp_core_update_wakeup_cause(void)
{
lp_wakeup_cause = 0;
if ((REG_GET_FIELD(PMU_LP_CPU_PWR1_REG, PMU_LP_CPU_WAKEUP_EN) & ULP_LP_CORE_WAKEUP_SOURCE_HP_CPU) \
&& (pmu_ll_lp_get_interrupt_raw(&PMU) & PMU_HP_SW_TRIGGER_INT_RAW)) {
lp_wakeup_cause |= ULP_LP_CORE_WAKEUP_SOURCE_HP_CPU;