hid_keybaord_flowApplication Flow: Initialize the app_handler Initialize the PIO lines (1,2,3,4 as o/p and 6,7,8,9 as i/p) Initialize the connection managerCMessageLoop:Message == CL_INIT_CFMY status == succeN Panic and exit application.Y Write device class Turn Security on Allow SDP browsing Initialize HID library lMessage Y == HID_INIT_CFM status ==NPanic and exit application.YSet app state to appDiscoverable. Store the library handle.ABA BsYMessage == CL_SM_PIN_CODE_IND Store host device address Send the fixed pin-code response of ‘0000’Authenticate == Message == CL_SM_AUTHENTICATE_CFMN Y Stop the pincode entry. Set auth status to idleY Stop the pin-code entry Set the auth status to trusted.Message == HID_CONNECT_CFMYConnectio n success?NY ……