kopia lustrzana https://github.com/espressif/esp-idf
66 wiersze
2.2 KiB
Markdown
66 wiersze
2.2 KiB
Markdown
# Task Watchdog Example
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This test code shows how to initialize the task watchdog, add tasks to the
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watchdog task list, feeding the tasks, deleting tasks from the watchdog task
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list, and deinitializing the task watchdog.
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## How to use example
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Before project configuration and build, be sure to set the correct chip target using `idf.py set-target <chip_name>`.
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### Hardware Required
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* A development board with ESP32/ESP32-S2/ESP32-C3 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
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* A USB cable for Power supply and programming
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### Configure the project
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Program should run without error. Comment out `esp_task_wdt_reset()` to observe a watchdog timeout.
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### Build and Flash
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Build the project and flash it to the board, then run monitor tool to view serial output:
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Run `idf.py -p PORT flash monitor` to build, flash and monitor the project.
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the Getting Started Guide for all the steps to configure and use the ESP-IDF to build projects.
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* [ESP-IDF Getting Started Guide on ESP32](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/index.html)
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* [ESP-IDF Getting Started Guide on ESP32-S2](https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/get-started/index.html)
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* [ESP-IDF Getting Started Guide on ESP32-C3](https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/get-started/index.html)
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## Example Output
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As you run the example, you will see the following log:
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With `esp_task_wdt_reset()`:
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```
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I (0) cpu_start: Starting scheduler on APP CPU.
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Initialize TWDT
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Delay for 10 seconds
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Unsubscribing and deleting tasks
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Complete
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```
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Without `esp_task_wdt_reset()`:
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```
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I (0) cpu_start: Starting scheduler on APP CPU.
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Initialize TWDT
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Delay for 10 seconds
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E (6316) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
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E (6316) task_wdt: - reset task (CPU 0)
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E (6316) task_wdt: - reset task (CPU 1)
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E (6316) task_wdt: Tasks currently running:
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E (6316) task_wdt: CPU 0: IDLE
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E (6316) task_wdt: CPU 1: IDLE
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E (6316) task_wdt: Print CPU 0 (current core) backtrace
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```
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## Troubleshooting
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For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.
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