How to setup Broadcaster Role

Please teach me about setting for Broadcaster Role.

When I use Sample source code "DA14580_SDK_v_2.0.4", I changed some parameters.
Source codes I modified are as followings.

====
In app_task.c
　　cmd->role = GAP_BROADCASTER_ADV
In app.c
　　cmd->op.code = GAPM_ADV_NON_CONN;
　　cmd->info.host.mode = GAP_BROADCASTER_MODE;
===

But, I couldn't confirm working of Broadcaster role.
It is necessary to modify another source code?
Or, my source code has another mistake?

Best regards.