Hi Marcos,
May be you have to set the model after the request is completed, can you try something like this?
var midata = "serviceURL"; //provide the service URL
var oModel = new sap.ui.model.odata.ODataModel(midata);
var that = this;
oModel.attachRequestCompleted(function(oEvent){ that.getView().setModel(oEvent.getSource());
})Also check the model structure in console and bind the path accordingly to Panel.
Regards,
Sai.