Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-08-18 06:35:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(ulp): fix lp uart keep wakeup triggered

Browse Source
This commit is contained in:
hebinglin
2026-06-05 20:01:15 +08:00
parent ddf8cc3626
commit 46ff88717c
14 changed files with 57 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
components/ulp/lp_core/shared/include/ulp_lp_core_lp_uart_shared.h
View File

@@ -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
*/
@@ -19,9 +19,10 @@ 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.
*
*