代码里好像没有看到初始配置的接口
// Link parameter update success event
typedef struct
{
uint8_t conidx; //!< Connection index
uint16_t con_interval; //!< Connection interval
uint16_t con_latency; //!< Connection latency value
uint16_t sup_to; //!< Supervision timeout
}gap_evt_link_param_update_t;