ble gatt notification使能问题？

在“SimpleBLEPeripheral”例子的基础上，我想使能notification功能，使能动作是必须要有central端发出配置吗？我在从机端（也就是gatt server端）能否自己使能notication功能？

Notification happen after connection. So, a connection between Central and Peripheral is necessary to use Notificaton from Peripheral to Central. Please refer to TI Keyfob Demo code Simple Keys Profile (simplekeys.c and simplekey.h) for details.