mirror of
https://github.com/espressif/esp-idf.git
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7c02bde904
This commit does the following: - Update existing unit tests that use the TWDT to call the new esp_task_wdt_init() API - Add a set of dedicate TWDT unit tests - Updates the TWDT example
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/* Task_Watchdog Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include "sdkconfig.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_err.h"
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#include "esp_task_wdt.h"
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#define TWDT_TIMEOUT_MS 3000
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#define TASK_RESET_PERIOD_MS 2000
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#define MAIN_DELAY_MS 10000
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static volatile bool run_loop;
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static esp_task_wdt_user_handle_t func_a_twdt_user_hdl;
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static esp_task_wdt_user_handle_t func_b_twdt_user_hdl;
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static void func_a(void)
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{
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esp_task_wdt_reset_user(func_a_twdt_user_hdl);
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}
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static void func_b(void)
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{
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esp_task_wdt_reset_user(func_b_twdt_user_hdl);
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}
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void task_func(void *arg)
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{
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// Subscribe this task to TWDT, then check if it is subscribed
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ESP_ERROR_CHECK(esp_task_wdt_add(NULL));
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ESP_ERROR_CHECK(esp_task_wdt_status(NULL));
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// Subscribe func_a and func_b as users of the the TWDT
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ESP_ERROR_CHECK(esp_task_wdt_add_user("func_a", &func_a_twdt_user_hdl));
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ESP_ERROR_CHECK(esp_task_wdt_add_user("func_b", &func_b_twdt_user_hdl));
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printf("Subscribed to TWDT\n");
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while (run_loop) {
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// Reset the task and each user periodically
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/*
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Note: Comment out any one of the calls below to trigger the TWDT
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*/
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esp_task_wdt_reset();
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func_a();
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func_b();
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vTaskDelay(pdMS_TO_TICKS(TASK_RESET_PERIOD_MS));
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}
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// Unsubscribe this task, func_a, and func_b
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ESP_ERROR_CHECK(esp_task_wdt_delete_user(func_a_twdt_user_hdl));
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ESP_ERROR_CHECK(esp_task_wdt_delete_user(func_b_twdt_user_hdl));
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ESP_ERROR_CHECK(esp_task_wdt_delete(NULL));
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printf("Unsubscribed from TWDT\n");
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// Notify main task of deletion
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xTaskNotifyGive((TaskHandle_t)arg);
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vTaskDelete(NULL);
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}
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void app_main(void)
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{
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#if !CONFIG_ESP_TASK_WDT
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// If the TWDT was not initialized automatically on startup, manually intialize it now
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esp_task_wdt_config_t twdt_config = {
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.timeout_ms = TWDT_TIMEOUT_MS,
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.idle_core_mask = (1 << portNUM_PROCESSORS) - 1, // Bitmask of all cores
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.trigger_panic = false,
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};
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ESP_ERROR_CHECK(esp_task_wdt_init(&twdt_config));
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printf("TWDT initialized\n");
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#endif // CONFIG_ESP_TASK_WDT
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// Create a task
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run_loop = true;
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xTaskCreatePinnedToCore(task_func, "task", 2048, xTaskGetCurrentTaskHandle(), 10, NULL, 0);
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// Let the created task run for a while
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printf("Delay for %d seconds\n", MAIN_DELAY_MS/1000);
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vTaskDelay(pdMS_TO_TICKS(MAIN_DELAY_MS));
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// Stop the created task
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run_loop = false;
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ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
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#if !CONFIG_ESP_TASK_WDT
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// If we manually initialized the TWDT, deintialize it now
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ESP_ERROR_CHECK(esp_task_wdt_deinit());
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printf("TWDT deinitialized\n");
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#endif // CONFIG_ESP_TASK_WDT
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printf("Example complete\n");
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}
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