Merge branch 'change/update_at_core_v5.0' into 'release/v5.0.0.0'

change(core): Updated at core version to a0888632 (v5.0)

See merge request application/esp-at!1988

Author: wujiangang

components/at/include/esp_at.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -168,3 +168,24 @@ esp_err_t esp_at_nvs_set_str(nvs_handle_t handle, const char *key, const char *v
 esp_err_t esp_at_nvs_get_str(nvs_handle_t handle, const char *key, char *out_value, size_t *length);
 esp_err_t esp_at_nvs_set_blob(nvs_handle_t handle, const char *key, const void *value, size_t length);
 esp_err_t esp_at_nvs_get_blob(nvs_handle_t handle, const char *key, void *out_value, size_t *length);
+
+/**
+ * @brief Yield the current task if the system has not recently executed the idle task.
+ *
+ * This function measures the elapsed time since the last execution of the FreeRTOS
+ * idle hook. If that duration exceeds the specified threshold, the current task
+ * voluntarily delays for a given number of RTOS ticks to allow lower-priority
+ * tasks (including the idle task) to run.
+ *
+ * This mechanism is intended to prevent long-running tasks from monopolizing
+ * the CPU under high workload conditions (e.g., heavy RX traffic), which may
+ * otherwise trigger the task watchdog.
+ *
+ * @note This function must not be called from ISR context.
+ *
+ * @param[in] idle_timeout_ms  Threshold in milliseconds. If the time since the
+ *                             last idle hook execution exceeds this value,
+ *                             a yield is performed.
+ * @param[in] yield_ticks      Number of RTOS ticks to delay when yielding.
+ */
+void esp_at_yield_if_idle_timeout(uint32_t idle_timeout_ms, uint32_t yield_ticks);

components/at/lib/VERSION

@@ -1,7 +1,7 @@
 ESP32:   3258eee
 ESP32C3: 3258eee
 ESP32C2: 3258eee
-ESP32C5: d5a5cea
+ESP32C5: a088863
 ESP32C6: 3258eee
-ESP32C61:d5a5cea
+ESP32C61:a088863
 ESP32S2: 3258eee

components/at/lib/libesp32c5_at_core.a

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,6 +10,8 @@
 #include "nvs_flash.h"
 #include "esp_event.h"
 #include "esp_wifi.h"
+#include "esp_freertos_hooks.h"
+#include "esp_timer.h"
 #include "esp_log.h"
 
 #if defined(CONFIG_BT_ENABLED)
@@ -33,6 +35,7 @@
 const char *g_at_mfg_nvs_name = "mfg_nvs";
 
 // static variables
+static volatile int64_t s_last_idle_enter_us = 0;
 static const char *s_ready_str = "\r\nready\r\n";
 static at_mfg_params_storage_mode_t s_at_param_mode = AT_PARAMS_NONE;
 static const char *TAG = "at-init";
@@ -322,6 +325,26 @@ static IRAM_ATTR void at_alloc_failed_cb(size_t requested_size, uint32_t caps, c
     esp_rom_printf(DRAM_STR(LOG_ANSI_COLOR_REGULAR(LOG_ANSI_COLOR_RED) "alloc failed, size:%u, caps:0x%x" LOG_ANSI_COLOR_RESET "\n"), requested_size, caps);
 }
 
+static bool at_idle_hook_cb(void)
+{
+    s_last_idle_enter_us = esp_timer_get_time();
+    return true;
+}
+
+void esp_at_yield_if_idle_timeout(uint32_t idle_timeout_ms, uint32_t yield_ticks)
+{
+    int64_t idle_gap_us = esp_timer_get_time() - s_last_idle_enter_us;
+    const int64_t threshold_us = (int64_t)idle_timeout_ms * 1000;
+
+    if (idle_gap_us < threshold_us) {
+        return;
+    }
+
+    if (yield_ticks > 0) {
+        vTaskDelay(yield_ticks);
+    }
+}
+
 #ifdef CONFIG_AT_DEBUG
 static void at_reconfigure_twdt(void)
 {
@@ -361,6 +384,9 @@ void esp_at_init(void)
     // register the callback function to be invoked if a memory allocation operation fails
     heap_caps_register_failed_alloc_callback(at_alloc_failed_cb);
 
+    // register idle hook to track last idle timestamp for watchdog prevention
+    esp_register_freertos_idle_hook(at_idle_hook_cb);
+
 #ifdef CONFIG_AT_DEBUG
     // reconfigure task watchdog timer to cancel the panic trigger when AT_DEBUG is enabled
     at_reconfigure_twdt();

components/at/lib/libesp32c5_at_core_silence.a

@@ -155,7 +155,7 @@ CONFIG_VFS_SUPPORT_TERMIOS=n
 CONFIG_LIBC_NEWLIB_NANO_FORMAT=y
 
 # Common ESP-related
-CONFIG_ESP_TASK_WDT_TIMEOUT_S=60
+CONFIG_ESP_TASK_WDT_TIMEOUT_S=10
 CONFIG_ESP_TASK_WDT_PANIC=y
 CONFIG_ESP_ERR_TO_NAME_LOOKUP=n
 

components/at/lib/libesp32c61_at_core.a

@@ -158,7 +158,7 @@ CONFIG_VFS_SUPPORT_TERMIOS=n
 CONFIG_LIBC_NEWLIB_NANO_FORMAT=y
 
 # Common ESP-related
-CONFIG_ESP_TASK_WDT_TIMEOUT_S=60
+CONFIG_ESP_TASK_WDT_TIMEOUT_S=10
 CONFIG_ESP_TASK_WDT_PANIC=y
 CONFIG_ESP_ERR_TO_NAME_LOOKUP=n
 

components/at/lib/libesp32c61_at_core_silence.a

@@ -168,7 +168,7 @@ CONFIG_VFS_SUPPORT_TERMIOS=n
 CONFIG_LIBC_NEWLIB_NANO_FORMAT=y
 
 # Common ESP-related
-CONFIG_ESP_TASK_WDT_TIMEOUT_S=60
+CONFIG_ESP_TASK_WDT_TIMEOUT_S=10
 CONFIG_ESP_TASK_WDT_PANIC=y
 CONFIG_ESP_ERR_TO_NAME_LOOKUP=n