【Home Treasure】 esp32s2 wifi sta analysis

damiaa

【Home Treasure】 esp32s2 wifi sta analysis [Copy link]

 

【Home Treasure】 esp32s2 wifi sta analysis

例子：Wifi station_example Station_examole_main.c

Used wifi initialization

freertos

Event Loop Library库

For more information about freertos_xEventCroup_api, please refer to the esp32 programming guide.

The freertos_xEventCroup_api message events and message responses are responded to in the foreground and background respectively, as shown in the following figure:

For xEventGroup, please refer to the following figure:

How to create:

How to use:

How to clear:

How to set up:

The workflow of the Event Loop Library is as follows:

1. esp_event_loop_create_default() in wifi_init_sta() creates an event loop.

2. Register two events that the user wants to respond to so that they can be responded to in the event response function.

esp_event_handler_instance_tinstance_any_id;

esp_event_handler_instance_tinstance_got_ip;

ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,

ESP_EVENT_ANY_ID,

&event_handler,

NULL,

&instance_any_id));

ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,

IP_EVENT_STA_GOT_IP,

&event_handler,

NULL,

&instance_got_ip));

3，staticvoidevent_handler(void* arg, esp_event_base_tevent_base,int32_tevent_id, void* event_data)中响应

4. The triggering condition is: ESP_ERROR_CHECK(esp_wifi_start());

5. Default Event Loop allows wifi events to work properly.

Thanks for watching. See you next time.

lugl4313820

The explanation is very detailed, I have learned a lot, thanks for sharing the knowledge about wifi sta!

damiaa

lugl4313820 posted on 2022-9-5 09:54 The explanation is very detailed, I have learned a lot, thank you for sharing the knowledge about wifi sta!

Thanks!

xiaolinen

Professional! This is the boss