ESP32 Forum

Posted: **Thu Oct 05, 2023 2:41 am**

Good evening, I have been facing problems on some devices in my ESPNOW deployment. The devices communicate for a while and only lock the ESPNOW side and communication only returns after the chip is reset. Here is a snippet of my Wifi initialization code and the espnow stack:

Code: Select all

void wifi_init()
{
    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();     //configutações padrão do wifi
    ESP_ERROR_CHECK(esp_wifi_init(&cfg));                    //inicia com as configurações padrões
    ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM)); //amarzena configuração na memória
    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));       //modo STA
    ESP_ERROR_CHECK(esp_wifi_start());                       //inicia Wifi
}
/* inicia esp_now */
esp_err_t espnow_init(void)
{
    /* Initialize ESPNOW and register sending and receiving callback function. */
    ESP_ERROR_CHECK(esp_now_init());
    ESP_ERROR_CHECK(esp_now_register_recv_cb(OnDataRecv));
    /* Seta chave primaria */
    ESP_ERROR_CHECK(esp_now_set_pmk((uint8_t *)CONFIG_ESPNOW_PMK));
    /* adiciona dispositivo a lista */
    esp_now_peer_info_t *peer = malloc(sizeof(esp_now_peer_info_t));
    if (peer == NULL)
    {
        esp_now_deinit();
        return ESP_FAIL;
    }
    memset(peer, 0, sizeof(esp_now_peer_info_t));
    peer->channel = CONFIG_ESPNOW_CHANNEL;
    peer->ifidx = ESP_IF_WIFI_STA;
    peer->encrypt = false;
    memcpy(peer->peer_addr, MACCONTROLE, ESP_NOW_ETH_ALEN);
    ESP_ERROR_CHECK(esp_now_add_peer(peer));
    free(peer);
    return ESP_OK;
}