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Merge branch 'refactor/esp_event_examples_new_interface' into 'master'

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Examples: esp event examples use new register API

See merge request espressif/esp-idf!7928
This commit is contained in:
Angus Gratton 2020-03-27 18:05:45 +08:00
commit 2415531f44
10 changed files with 123 additions and 76 deletions
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87
examples/system/esp_event/default_event_loop/README.md
View file

@ -20,7 +20,7 @@ Simply put, posting an event to a loop is the act of queueing its handlers for e
### Handler Registration/Unregistration
This example demonstrates handler registration to the default event loop using `esp_event_handler_register` for (1) specific events, (2) **any** event under a certain base, and (3) **any** event. This also shows the possbility of registering multiple handlers to the same event.
This example demonstrates handler registration to the default event loop using `esp_event_handler_register` for (1) specific events, (2) **any** event under a certain base, and (3) **any** event. This also shows the possbility of registering multiple handlers to the same event as well as registering one handler to the same event multiple times.
Unregistering a handler is done using `esp_event_handler_unregister()`. Unregistering a handler means that it no longer executes even when the event it was previously registered to gets posted to the loop.
@ -55,44 +55,46 @@ See the Getting Started Guide for full steps to configure and use ESP-IDF to bui
The example should have the following log output:
```
I (276) default_event_loop: setting up
I (276) default_event_loop: starting event sources
I (276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: posting to default loop
I (276) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 1 out of 5
I (296) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler
I (306) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_any_handler
I (316) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: all_event_handler
I (326) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 1 times
I (336) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (806) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 2 out of 5
I (806) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 2 times
I (806) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (1276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop
I (1276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed 1 out of 3 times
I (1286) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler
I (1296) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler
I (1306) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 3 out of 5
I (1316) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: unregistering task_iteration_handler
I (1316) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 3 times
I (1336) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (1846) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 4 out of 5
I (1846) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (2276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop
I (2276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed 2 out of 3 times
I (2286) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler
I (2296) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler
I (2346) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 5 out of 5
I (2346) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (3276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop
I (3276) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: posting to default loop
I (3286) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed 3 out of 3 times
I (3296) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler
I (3306) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler
I (3316) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: timer_stopped_handler
I (3326) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: deleted timer event source
I (3326) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: timer_any_handler
I (3336) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: all_event_handler
I (3346) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: deleting task event source
I (328) default_event_loop: setting up
I (338) default_event_loop: starting event sources
I (338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: posting to default loop
I (338) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 1 out of 5
I (358) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 0
I (368) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 1
I (378) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler_2
I (388) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_any_handler
I (388) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: all_event_handler
I (398) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 1 times
I (408) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (858) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 2 out of 5
I (858) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 2 times
I (858) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (1338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop
I (1338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed 1 out of 3 times
I (1348) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler
I (1358) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler
I (1358) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 3 out of 5
I (1368) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: unregistering task_iteration_handler
I (1368) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 3 times
I (1388) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (1898) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 4 out of 5
I (1898) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (2338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop
I (2338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed 2 out of 3 times
I (2348) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler
I (2358) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler
I (2398) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, 5 out of 5
I (2398) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
I (3338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop
I (3338) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: posting to default loop
I (3348) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed 3 out of 3 times
I (3358) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler
I (3358) default_event_loop: TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler
I (3368) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: timer_stopped_handler
I (3378) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: deleted timer event source
I (3388) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: timer_any_handler
I (3398) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STOPPED: all_event_handler
I (3398) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: deleting task event source
```
## Example Breakdown
@ -135,14 +137,17 @@ The two event sources are started. The respective events are posted to the defau
#### 3. Execution of handlers
```
I (296) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler
I (358) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 0
I (368) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 1
I (378) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler_2
I (306) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: timer_any_handler
I (316) default_event_loop: TIMER_EVENTS:TIMER_EVENT_STARTED: all_event_handler
...
I (326) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed 1 times
I (336) default_event_loop: TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler
```
The handlers are executed for the events that were posted in **(2)**. In addition to the event-specific handlers `timer_started_handler()` and `task_iteration_handler()`, the `timer_any_handler()` and `all_event_handler()` are also executed.
The handlers are executed for the events that were posted in **(2)**. Note how `timer_started_handler()` is called twice on the same event post. This shows the ability to register a single event handler to a single event multiple times. Note also how `timer_started_handler_2()` is called on the same event post. This shows that multiple handlers can be registered to a single event.
In addition to the event-specific handlers `timer_started_handler()` (registered twice), `timer_started_handler_2()` and `task_iteration_handler()`, the `timer_any_handler()` and `all_event_handler()` are also executed.
The `timer_any_handler()` executes for **any** timer event. It can be seen executing for the timer expiry and timer stopped events in the subsequent parts of the log.

4
examples/system/esp_event/default_event_loop/example_test.py
View file

@ -27,7 +27,9 @@ def _test_timer_events(dut):
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: posting to default loop")
print("Posted timer started event")
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler")
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 0")
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 1")
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler_2")
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: timer_any_handler")
dut.expect("TIMER_EVENTS:TIMER_EVENT_STARTED: all_event_handler")
print("Handled timer started event")

34
examples/system/esp_event/default_event_loop/main/main.c
View file

@ -16,6 +16,11 @@
static const char* TAG = "default_event_loop";
static esp_event_handler_instance_t s_instance;
static int TIMER_START_HANDLER_0 = 0;
static int TIMER_START_HANDLER_1 = 1;
static char* get_id_string(esp_event_base_t base, int32_t id) {
char* event = "";
if (base == TIMER_EVENTS) {
@ -52,7 +57,14 @@ static void timer_callback(void* arg)
// Handler which executes when the timer started event gets executed by the loop.
static void timer_started_handler(void* handler_args, esp_event_base_t base, int32_t id, void* event_data)
{
ESP_LOGI(TAG, "%s:%s: timer_started_handler", base, get_id_string(base, id));
int start_handler_num = *((int*) handler_args);
ESP_LOGI(TAG, "%s:%s: timer_started_handler, instance %d", base, get_id_string(base, id), start_handler_num);
}
// Second handler which executes when the timer started event gets executed by the loop.
static void timer_started_handler_2(void* handler_args, esp_event_base_t base, int32_t id, void* event_data)
{
ESP_LOGI(TAG, "%s:%s: timer_started_handler_2", base, get_id_string(base, id));
}
// Handler which executes when the timer expiry event gets executed by the loop. This handler keeps track of
@ -117,7 +129,7 @@ static void task_event_source(void* args)
if (iteration == TASK_ITERATIONS_UNREGISTER) {
ESP_LOGI(TAG, "%s:%s: unregistering task_iteration_handler", TASK_EVENTS, get_id_string(TASK_EVENTS, TASK_ITERATION_EVENT));
ESP_ERROR_CHECK(esp_event_handler_unregister(TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler));
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(TASK_EVENTS, TASK_ITERATION_EVENT, s_instance));
}
vTaskDelay(pdMS_TO_TICKS(TASK_PERIOD));
@ -144,20 +156,22 @@ void app_main(void)
// Create the default event loop
ESP_ERROR_CHECK(esp_event_loop_create_default());
// Register the specific timer event handlers.
ESP_ERROR_CHECK(esp_event_handler_register(TIMER_EVENTS, TIMER_EVENT_STARTED, timer_started_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(TIMER_EVENTS, TIMER_EVENT_EXPIRY, timer_expiry_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(TIMER_EVENTS, TIMER_EVENT_STOPPED, timer_stopped_handler, NULL));
// Register the specific timer event handlers. Timer start handler is registered twice.
ESP_ERROR_CHECK(esp_event_handler_instance_register(TIMER_EVENTS, TIMER_EVENT_STARTED, timer_started_handler, &TIMER_START_HANDLER_0, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(TIMER_EVENTS, TIMER_EVENT_STARTED, timer_started_handler, &TIMER_START_HANDLER_1, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(TIMER_EVENTS, TIMER_EVENT_STARTED, timer_started_handler_2, NULL, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(TIMER_EVENTS, TIMER_EVENT_EXPIRY, timer_expiry_handler, NULL, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(TIMER_EVENTS, TIMER_EVENT_STOPPED, timer_stopped_handler, NULL, NULL));
// Register the handler for all timer family events. This will execute if the timer is started, expired or is stopped.
ESP_ERROR_CHECK(esp_event_handler_register(TIMER_EVENTS, ESP_EVENT_ANY_ID, timer_any_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(TIMER_EVENTS, ESP_EVENT_ANY_ID, timer_any_handler, NULL, NULL));
// Register the handler for task iteration event.
ESP_ERROR_CHECK(esp_event_handler_register(TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler, NULL));
// Register the handler for task iteration event; need to pass instance handle for later unregistration.
ESP_ERROR_CHECK(esp_event_handler_instance_register(TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler, NULL, &s_instance));
// Register the handler for all event. This will execute if either the timer events or the task iteration event
// is posted to the default loop.
ESP_ERROR_CHECK(esp_event_handler_register(ESP_EVENT_ANY_BASE, ESP_EVENT_ANY_ID, all_event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(ESP_EVENT_ANY_BASE, ESP_EVENT_ANY_ID, all_event_handler, NULL, NULL));
// Create and start the event sources
esp_timer_create_args_t timer_args = {

2
examples/system/esp_event/user_event_loops/README.md
View file

@ -16,7 +16,7 @@ Depending on the parameters, the user can create either a loop with a dedicated
### Handler Registration/Unregistration,
Handler registration and unregistration works the same way as the default event loop, just with a different API, `esp_event_handler_register_with()` and `esp_event_handler_register_with()` respectively. There are two things this example highlights:
Handler registration and unregistration works the same way as the default event loop, just with a different API, `esp_event_handler_instance_register_with()` and `esp_event_handler_instance_unregister_with()` respectively. There are two things this example highlights:
1. The possibility of registering the same handler for different loops
2. The ability to pass static data to handlers.

4
examples/system/esp_event/user_event_loops/main/main.c
View file

@ -109,8 +109,8 @@ void app_main(void)
// Register the handler for task iteration event. Notice that the same handler is used for handling event on different loops.
// The loop handle is provided as an argument in order for this example to display the loop the handler is being run on.
ESP_ERROR_CHECK(esp_event_handler_register_with(loop_with_task, TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler, loop_with_task));
ESP_ERROR_CHECK(esp_event_handler_register_with(loop_without_task, TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler, loop_without_task));
ESP_ERROR_CHECK(esp_event_handler_instance_register_with(loop_with_task, TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler, loop_with_task, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register_with(loop_without_task, TASK_EVENTS, TASK_ITERATION_EVENT, task_iteration_handler, loop_without_task, NULL));
ESP_LOGI(TAG, "starting event source");

4
examples/wifi/fast_scan/main/fast_scan.c
View file

@ -91,8 +91,8 @@ static void fast_scan(void)
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL, NULL));
// Initialize default station as network interface instance (esp-netif)
esp_netif_t *sta_netif = esp_netif_create_default_wifi_sta();

6
examples/wifi/getting_started/softAP/main/softap_example_main.c
View file

@ -52,7 +52,11 @@ void wifi_init_softap(void)
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
ESP_EVENT_ANY_ID,
&wifi_event_handler,
NULL,
NULL));
wifi_config_t wifi_config = {
.ap = {

18
examples/wifi/getting_started/station/main/station_example_main.c
View file

@ -75,8 +75,18 @@ void wifi_init_sta(void)
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL));
esp_event_handler_instance_t instance_any_id;
esp_event_handler_instance_t instance_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));
wifi_config_t wifi_config = {
.sta = {
@ -110,8 +120,8 @@ void wifi_init_sta(void)
ESP_LOGE(TAG, "UNEXPECTED EVENT");
}
ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler));
ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler));
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, instance_any_id));
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_got_ip));
vEventGroupDelete(s_wifi_event_group);
}

18
examples/wifi/iperf/main/cmd_wifi.c
View file

@ -117,9 +117,21 @@ void initialise_wifi(void)
assert(netif_sta);
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK( esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_SCAN_DONE, &scan_done_handler, NULL) );
ESP_ERROR_CHECK( esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &disconnect_handler, NULL) );
ESP_ERROR_CHECK( esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &got_ip_handler, NULL) );
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
WIFI_EVENT_SCAN_DONE,
&scan_done_handler,
NULL,
NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
WIFI_EVENT_STA_DISCONNECTED,
&disconnect_handler,
NULL,
NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
IP_EVENT_STA_GOT_IP,
&got_ip_handler,
NULL,
NULL));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM) );
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_NULL) );
ESP_ERROR_CHECK(esp_wifi_start() );

4
examples/wifi/power_save/main/power_save.c
View file

@ -63,8 +63,8 @@ static void wifi_power_save(void)
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL, NULL));
ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL, NULL));
wifi_config_t wifi_config = {
.sta = {