Merge pull request #385 from pennam/c33-mac-address

Portenta C33 WiFi: get STA MAC address as default

Author: pennam

Diff for: libraries/WiFi/src/WiFi.cpp

@@ -168,12 +168,13 @@ void CWifi::end(void) {
 /* -------------------------------------------------------------------------- */
 uint8_t* CWifi::macAddress(uint8_t* mac) {
 /* -------------------------------------------------------------------------- */   
-   if(ni != nullptr) {
-      if(ni->getMacAddress(mac) == WL_MAC_ADDR_LENGTH) {
-         return mac;
-      }
+   if(ni == nullptr) {
+      ni = CLwipIf::getInstance().get(NI_WIFI_STATION);
+   }
+
+   if(ni->getMacAddress(mac) != WL_MAC_ADDR_LENGTH) {
+      memset(mac, 0x00, 6);
    }
-   memset(mac,0x00,6);
    return mac;
 }