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fix(ulp): fix lp uart keep wakeup triggered

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This commit is contained in:
hebinglin
2026-06-08 19:49:42 +08:00
parent a0688c6e32
commit f088b73ea8
12 changed files with 80 additions and 25 deletions
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components/ulp/lp_core/shared/include/ulp_lp_core_lp_uart_shared.h
+5 -4
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -18,9 +18,10 @@ extern "C" {
*
* @note This function configures the LP UART wakeup mode. Ensure that the UART has already been initialized
* with the lp_core_uart_init() call.
* Once the LP Core wakes up due to the LP UART, the wakeup feature is disabled.
* To re-enable the wakeup from the LP UART, you must call
* ulp_lp_core_lp_uart_reset_wakeup_en() again before the LP core goes to sleep.
* Once the LP Core wakes up due to the LP UART, the wakeup will be kept triggered in the chips with
* SOC_LP_CORE_LP_UART_WAKEUP_KEEP_TRIGGERED. You need to call ulp_lp_core_lp_uart_reset_wakeup_en()
* to reset the wakeup signal and the UART buffer manually after waking up, which is done in ulp
* startup phase.
* Also be aware of limitations in different modes mentioned in the uart_wakeup_cfg_t struct.
*
*