Unable to connect to WiFi using a modified example in /examples/wifi/getting_started/station
Expected Behavior
ESP32S3 should connect to AP
Actual Behavior
ESP32 does not connect to AP. It goes is series of loop
Steps to reproduce
Execute esptool.py --chip esp32s3 erase_flash
Go to /examples/wifi/getting_started/station
Compile the example with few modifications:
/* WiFi station Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
#include "esp_system.h"
#include "esp_wifi.h"
#include "esp_event.h"
#include "esp_log.h"
#include "nvs_flash.h"
include "lwip/err.h"
include "lwip/sys.h"
/* The examples use WiFi configuration that you can set via project configuration menu
If you'd rather not, just change the below entries to strings with
the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid"
*/
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_create_default_wifi_sta();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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 = {
.ssid = EXAMPLE_ESP_WIFI_SSID,
.password = EXAMPLE_ESP_WIFI_PASS,
/* Setting a password implies station will connect to all security modes including WEP/WPA.
* However these modes are deprecated and not advisable to be used. Incase your Access point
* doesn't support WPA2, these mode can be enabled by commenting below line */
.threshold.authmode = WIFI_AUTH_WPA2_PSK,
},
};
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_NONE)); // FMOD
ESP_ERROR_CHECK(esp_wifi_start() );
ESP_LOGI(TAG, "wifi_init_sta finished.");
/* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
* number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
pdFALSE,
pdFALSE,
portMAX_DELAY);
/* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
* happened. */
if (bits & WIFI_CONNECTED_BIT) {
ESP_LOGI(TAG, "connected to ap SSID:%s password:%s",
EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
} else if (bits & WIFI_FAIL_BIT) {
ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s",
EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
} else {
ESP_LOGE(TAG, "UNEXPECTED EVENT");
}
#if 0 // FMOD
/* The event will not be processed after unregister */
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, instance_got_ip));
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
vEventGroupDelete(s_wifi_event_group);
#endif
}
void app_main(void)
{
//Initialize NVS
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK(ret);
### If possible, attach a picture of your setup/wiring here.
No special setup, nothing is connected to the ESP32S3 devboard.
### Code to reproduce this issue
Refer to example code
Other info:
ESP32S3 log:
[10_WiFi_Disconnect.txt](https://github.com/espressif/esp-idf/files/9053028/10_WiFi_Disconnect.txt)
Packet capture on CH9 (rename to .pcap):
[10_WiFi_Disconnect.log](https://github.com/espressif/esp-idf/files/9053034/10_WiFi_Disconnect.log)
Flash dump (rename to .bin):
[10_WiFi_Disconnect.zip](https://github.com/espressif/esp-idf/files/9053071/10_WiFi_Disconnect.zip)
sdkconfig (remove file extension):
[sdkconfig.txt](https://github.com/espressif/esp-idf/files/9053094/sdkconfig.txt)
Router: Huawei E5885Ls-93a
Environment
git describe --tags
to find it): v4.4.1xtensa-esp32-elf-gcc --version
to find it): xtensa-esp32-elf-gcc (crosstool-NG esp-2021r2-patch3) 8.4.0Problem Description
Unable to connect to WiFi using a modified example in
/examples/wifi/getting_started/station
Expected Behavior
ESP32S3 should connect to AP
Actual Behavior
ESP32 does not connect to AP. It goes is series of loop
Steps to reproduce
esptool.py --chip esp32s3 erase_flash
/examples/wifi/getting_started/station
Compile the example with few modifications:
include "lwip/err.h"
include "lwip/sys.h"
/* The examples use WiFi configuration that you can set via project configuration menu
If you'd rather not, just change the below entries to strings with the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid" */
define EXAMPLE_ESP_WIFI_SSID CONFIG_ESP_WIFI_SSID
define EXAMPLE_ESP_WIFI_PASS CONFIG_ESP_WIFI_PASSWORD
define EXAMPLE_ESP_MAXIMUM_RETRY CONFIG_ESP_MAXIMUM_RETRY
/ FreeRTOS event group to signal when we are connected/ static EventGroupHandle_t s_wifi_event_group;
/* The event group allows multiple bits for each event, but we only care about two events:
define WIFI_CONNECTED_BIT BIT0
define WIFI_FAIL_BIT BIT1
static const char *TAG = "wifi station";
static int s_retry_num = 0;
static void event_handler(void arg, esp_event_base_t event_base, int32_t event_id, void event_data) { if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) { esp_wifi_connect(); } else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) { if (s_retry_num < EXAMPLE_ESP_MAXIMUM_RETRY) { esp_wifi_connect(); s_retry_num++; ESP_LOGI(TAG, "retry to connect to the AP"); } else { xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT); } ESP_LOGI(TAG,"connect to the AP fail"); } else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) { ip_event_got_ip_t event = (ip_event_got_ip_t) event_data; ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip)); s_retry_num = 0; xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT); } else if(event_base == WIFI_EVENT) { // FMOD ESP_LOGE(TAG, "Unhandled WIFI_EVENT event_id = %d", event_id); } else if(event_base == IP_EVENT) { // FMOD ESP_LOGE(TAG, "Unhandled IP_EVENT event_id = %d", event_id); } }
void wifi_init_sta(void) { s_wifi_event_group = xEventGroupCreate();
}
void app_main(void) { //Initialize NVS esp_err_t ret = nvs_flash_init(); if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) { ESP_ERROR_CHECK(nvs_flash_erase()); ret = nvs_flash_init(); } ESP_ERROR_CHECK(ret);
}