mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00

History

Song Ruo Jing 96a8265084 fix(uart): increased stack size for the task in uart_events example The example cannot run successfully on ESP32S3 due to task stack overflow Introduced in `a4e6f57a40`		2024-08-12 16:14:47 +08:00
..
main	fix(uart): increased stack size for the task in uart_events example	2024-08-12 16:14:47 +08:00
CMakeLists.txt	tools: Increase the minimal supported CMake version to 3.16	2022-06-01 06:35:02 +00:00
README.md	feat(esp32c61): disable unsupported build test	2024-07-16 16:06:19 +08:00

README.md

Supported Targets	ESP32	ESP32-C2	ESP32-C3	ESP32-C5	ESP32-C6	ESP32-C61	ESP32-H2	ESP32-P4	ESP32-S2	ESP32-S3

UART Events Example

(See the README.md file in the upper level 'examples' directory for more information about examples.)

This example shows how to use the UART driver to handle special UART events. It also reads data from UART0 directly, and echoes it back to the monitoring console.

How to use example

Hardware Required

The example can be run on any development board, that is based on the Espressif SoC. The board shall be connected to a computer with a single USB cable for flashing and monitoring.

Configure the project

idf.py menuconfig

Build and Flash

Build the project and flash it to the board, then run monitor tool to view serial output:

idf.py -p PORT flash monitor

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

Pushing a followed by a b on the keyboard will generate the following output:

...
I (0) cpu_start: Starting scheduler on APP CPU.
I (299) uart: queue free spaces: 20
I (2249) uart_events: uart[0] event:
I (2249) uart_events: [UART DATA]: 1
I (2249) uart_events: [DATA EVT]:
aI (12089) uart_events: uart[0] event:
I (12089) uart_events: [UART DATA]: 1
I (12089) uart_events: [DATA EVT]:
b