Setting wifi configuration

[Ritesh]

I think it just like using wifi on mobile phone. When use want to connect to another wifi, you just disconnect and reconnect. And calling

Code: Select all

esp_wifi_start();  esp_wifi_stop()

is the same with disable and enable wifi on mobile phone and doing this periodically is not good.

So in my opinion, if you just want change wifi ssid, just disconnect, set up new wifi ssid and reconnect is good choice.

Heyy, it works without wifi_disconnect. just changed ssid and reconnect.

Yeah. Exactly, We are also doing same thing like changing WiFi configurations and reconnecting WiFi whenever want to switch router or hot-spot as per our requirements.

[burkulesomesh43]

Nice

Heyy,
I am getting this error by changing configuration.

183188) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183188) wifi: alloc eb len=76 type=2 fail, heap:41928

W (1183198) wifi: m f probe req l=0

E (1183318) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183318) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183318) wifi: m f probe req l=0

E (1183438) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183438) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183438) wifi: m f probe req l=0

E (1183568) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183568) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183568) wifi: m f probe req l=0

E (1183688) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183688) wifi: alloc eb len=76 type=2 fail, heap:41936

[Ritesh]

Nice

Heyy,
I am getting this error by changing configuration.

183188) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183188) wifi: alloc eb len=76 type=2 fail, heap:41928

W (1183198) wifi: m f probe req l=0

E (1183318) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183318) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183318) wifi: m f probe req l=0

E (1183438) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183438) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183438) wifi: m f probe req l=0

E (1183568) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183568) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183568) wifi: m f probe req l=0

E (1183688) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183688) wifi: alloc eb len=76 type=2 fail, heap:41936

As per error logs it seems like memory is going to be leaked at low level of WiFi Stack. Would you please share code like what you have did? so that it will be helpful to give support for that.

[burkulesomesh43]

Nice

Heyy,
I am getting this error by changing configuration.

183188) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183188) wifi: alloc eb len=76 type=2 fail, heap:41928

W (1183198) wifi: m f probe req l=0

E (1183318) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183318) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183318) wifi: m f probe req l=0

E (1183438) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183438) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183438) wifi: m f probe req l=0

E (1183568) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183568) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183568) wifi: m f probe req l=0

E (1183688) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183688) wifi: alloc eb len=76 type=2 fail, heap:41936

As per error logs it seems like memory is going to be leaked at low level of WiFi Stack. Would you please share code like what you have did? so that it will be helpful to give support for that.

I am switching into two networks in handler like this->>

Code: Select all

static esp_err_t event_handler(void *ctx, system_event_t *event)
{
	switch(event->event_id) {
	    case SYSTEM_EVENT_STA_START:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_START");
	        esp_wifi_connect();
	        break;

	    case SYSTEM_EVENT_STA_CONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_CONNECTED");
	    	tryToConnect=0;
	        break;

	    case SYSTEM_EVENT_STA_GOT_IP:
	    	ESP_LOGI("WIFI TEST ","SYSTEM_EVENT_STA_GOT_IP");
	    	wifi_con_flag=1;
	        xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    case SYSTEM_EVENT_STA_DISCONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_DISCONNECTED");
	    	wifi_con_flag=0;
	    	esp_wifi_disconnect();
	    	ESP_LOGI("WIFI TEST ","tryToConnect: %d",tryToConnect);
	    	//connect to set configuration
	    	if(tryToConnect < 10){
	        ESP_LOGI("WIFI TEST ","set configuration");
			memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "somesh");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
			
	    	}else if(tryToConnect > 10 && tryToConnect < 15){
	        ESP_LOGI("WIFI TEST ","default configuration");
	    	        memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "default");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
	    	}
	        esp_wifi_connect();
	        tryToConnect++;
	        if(tryToConnect == 15)tryToConnect=0;
	        xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    default:
	        break;
	    }
	    return ESP_OK;
}

[Ritesh]

Heyy,
I am getting this error by changing configuration.

183188) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183188) wifi: alloc eb len=76 type=2 fail, heap:41928

W (1183198) wifi: m f probe req l=0

E (1183318) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183318) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183318) wifi: m f probe req l=0

E (1183438) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183438) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183438) wifi: m f probe req l=0

E (1183568) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183568) wifi: alloc eb len=76 type=2 fail, heap:41936

W (1183568) wifi: m f probe req l=0

E (1183688) wifi: esf_buf: t=2 l=76 max:32, alloc:32 no eb
W (1183688) wifi: alloc eb len=76 type=2 fail, heap:41936

As per error logs it seems like memory is going to be leaked at low level of WiFi Stack. Would you please share code like what you have did? so that it will be helpful to give support for that.

I am switching into two networks in handler like this->>

Code: Select all

static esp_err_t event_handler(void *ctx, system_event_t *event)
{
	switch(event->event_id) {
	    case SYSTEM_EVENT_STA_START:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_START");
	        esp_wifi_connect();
	        break;

	    case SYSTEM_EVENT_STA_CONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_CONNECTED");
	    	tryToConnect=0;
	        break;

	    case SYSTEM_EVENT_STA_GOT_IP:
	    	ESP_LOGI("WIFI TEST ","SYSTEM_EVENT_STA_GOT_IP");
	    	wifi_con_flag=1;
	        xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    case SYSTEM_EVENT_STA_DISCONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_DISCONNECTED");
	    	wifi_con_flag=0;
	    	esp_wifi_disconnect();
	    	ESP_LOGI("WIFI TEST ","tryToConnect: %d",tryToConnect);
	    	//connect to set configuration
	    	if(tryToConnect < 10){
	        ESP_LOGI("WIFI TEST ","set configuration");
			memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "somesh");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
			
	    	}else if(tryToConnect > 10 && tryToConnect < 15){
	        ESP_LOGI("WIFI TEST ","default configuration");
	    	        memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "default");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
	    	}
	        esp_wifi_connect();
	        tryToConnect++;
	        if(tryToConnect == 15)tryToConnect=0;
	        xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    default:
	        break;
	    }
	    return ESP_OK;
}

Hi,

Are you getting issue on individual connection test like AP mode or STA mode? Because as per code there is no any issue into switching mechanism.

[burkulesomesh43]

As per error logs it seems like memory is going to be leaked at low level of WiFi Stack. Would you please share code like what you have did? so that it will be helpful to give support for that.

I am switching into two networks in handler like this->>

Code: Select all

static esp_err_t event_handler(void *ctx, system_event_t *event)
{
	switch(event->event_id) {
	    case SYSTEM_EVENT_STA_START:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_START");
	        esp_wifi_connect();
	        break;

	    case SYSTEM_EVENT_STA_CONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_CONNECTED");
	    	tryToConnect=0;
	        break;

	    case SYSTEM_EVENT_STA_GOT_IP:
	    	ESP_LOGI("WIFI TEST ","SYSTEM_EVENT_STA_GOT_IP");
	    	wifi_con_flag=1;
	        xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    case SYSTEM_EVENT_STA_DISCONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_DISCONNECTED");
	    	wifi_con_flag=0;
	    	esp_wifi_disconnect();
	    	ESP_LOGI("WIFI TEST ","tryToConnect: %d",tryToConnect);
	    	//connect to set configuration
	    	if(tryToConnect < 10){
	        ESP_LOGI("WIFI TEST ","set configuration");
			memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "somesh");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
			
	    	}else if(tryToConnect > 10 && tryToConnect < 15){
	        ESP_LOGI("WIFI TEST ","default configuration");
	    	        memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "default");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
	    	}
	        esp_wifi_connect();
	        tryToConnect++;
	        if(tryToConnect == 15)tryToConnect=0;
	        xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    default:
	        break;
	    }
	    return ESP_OK;
}

Hi,

Are you getting issue on individual connection test like AP mode or STA mode? Because as per code there is no any issue into switching mechanism.

Yes I am using STA mode only. that error is rare. it comes sometimes and esp32 is gets stucked and error comes infinitely.
Not getting what is the issue.

[Ritesh]

I am switching into two networks in handler like this->>

Code: Select all

static esp_err_t event_handler(void *ctx, system_event_t *event)
{
	switch(event->event_id) {
	    case SYSTEM_EVENT_STA_START:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_START");
	        esp_wifi_connect();
	        break;

	    case SYSTEM_EVENT_STA_CONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_CONNECTED");
	    	tryToConnect=0;
	        break;

	    case SYSTEM_EVENT_STA_GOT_IP:
	    	ESP_LOGI("WIFI TEST ","SYSTEM_EVENT_STA_GOT_IP");
	    	wifi_con_flag=1;
	        xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    case SYSTEM_EVENT_STA_DISCONNECTED:
	    	ESP_LOGI("WIFI TEST","SYSTEM_EVENT_STA_DISCONNECTED");
	    	wifi_con_flag=0;
	    	esp_wifi_disconnect();
	    	ESP_LOGI("WIFI TEST ","tryToConnect: %d",tryToConnect);
	    	//connect to set configuration
	    	if(tryToConnect < 10){
	        ESP_LOGI("WIFI TEST ","set configuration");
			memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "somesh");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
			
	    	}else if(tryToConnect > 10 && tryToConnect < 15){
	        ESP_LOGI("WIFI TEST ","default configuration");
	    	        memset(&wifi_config, 0, sizeof(wifi_config));
	                strcpy((char *)wifi_config.sta.ssid, "default");
	                strcpy((char *)wifi_config.sta.password,"123456" );
			ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
	    	}
	        esp_wifi_connect();
	        tryToConnect++;
	        if(tryToConnect == 15)tryToConnect=0;
	        xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
	        break;
	    default:
	        break;
	    }
	    return ESP_OK;
}

Hi,

Are you getting issue on individual connection test like AP mode or STA mode? Because as per code there is no any issue into switching mechanism.

Yes I am using STA mode only. that error is rare. it comes sometimes and esp32 is gets stucked and error comes infinitely.
Not getting what is the issue.

Hi,

As per error log it indicates that memory is going to be leaked at low level into wifi stack level. So, would you please try to deinit and again init wifi while switching from STA mode to AP mode?

[burkulesomesh43]

Since by default Wi-Fi configuration is stored into flash, you may want to call esp_wifi_set_storage function with WIFI_STORAGE_RAM argument. In this case configuration will not be saved in flash, and flash lifetime will not be affected.

Hi,

We are storing WiFi configurations into flash memory as per our requirements. So, what will be the lifetime of flash operation for single device? Because we are also in same phase like many times WiFi configurations will be changed as per our project requirements.

the limit is 100000 write cycles.

[Ritesh]

Since by default Wi-Fi configuration is stored into flash, you may want to call esp_wifi_set_storage function with WIFI_STORAGE_RAM argument. In this case configuration will not be saved in flash, and flash lifetime will not be affected.

Hi,

We are storing WiFi configurations into flash memory as per our requirements. So, what will be the lifetime of flash operation for single device? Because we are also in same phase like many times WiFi configurations will be changed as per our project requirements.

the limit is 100000 write cycles.

Thanks a lot.

I just want to know that your issue has been resolved or still open?

[burkulesomesh43]

Hi,

We are storing WiFi configurations into flash memory as per our requirements. So, what will be the lifetime of flash operation for single device? Because we are also in same phase like many times WiFi configurations will be changed as per our project requirements.

the limit is 100000 write cycles.

Thanks a lot.

I just want to know that your issue has been resolved or still open?

Resolved.