5.6.1 Execution

• Configure the network and OTA parameters in main.h. The default port number is 80. If the user application uses a different port number, update it in the URL. "http://192.168.0.137/m2m_ota.bin".

  #define MAIN_WLAN_SSID        "DEMO_AP"
  #define MAIN_WLAN_AUTH        M2M_WIFI_SEC_WPA_PSK
  #define MAIN_WLAN_PSK         "12345678"
  #define MAIN_OTA_URL          "http://192.168.0.137/m2m_ota.bin"

• Connect to the AP.

  /* Connect to router. */
  m2m_wifi_connect((char *)MAIN_WLAN_SSID, sizeof(MAIN_WLAN_SSID),
          MAIN_WLAN_AUTH, (char *)MAIN_WLAN_PSK, M2M_WIFI_CH_ALL);

• Initialize the OTA function.

  m2m_ota_init(OtaUpdateCb, OtaNotifCb);

• After the device is connected to the AP, the m2m_ota_start_update() function will be executed in the wifi_cb() function.

  static void wifi_cb(uint8_t u8MsgType, void *pvMsg)
  {
      ...
      case M2M_WIFI_REQ_DHCP_CONF:
          m2m_ota_start_update((uint8_t *)MAIN_OTA_URL);

• If successfully downloaded, the m2m_ota_switch_firmware() function will be called through OtaUpdateCb().

  static void OtaUpdateCb(uint8_t u8OtaUpdateStatusType, uint8_t u8OtaUpdateStatus)
  {
      m2m_ota_switch_firmware();
  }

  After that and if no errors occur, a message will display: “OTA success. Press reset your board.”

When you receive the IP address, then the OTA update will start.