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珠海杰理科技
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fw-AC63_BT_SDK
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NOTE：蓝牙双模获取对方的 RSSI 信号强度说明
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JL-MinXian
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Opened this issue
2022-07-25 14:17
**一、经典蓝牙EDR** 1、作为主机搜索模式下，在搜索结果会有返回rssi值。 ```C u8 bt_emitter_search_result(char *name, u8 name_len, u8 *addr, u32 dev_class, char rssi) ``` 2、当 EDR连上后（无论是做主机或者从机模式），可通过对方地址来获取rssi值，提供接口如下。 ```C s8 bredr_get_rssi_for_address(u8 *address); ``` **二、低功耗蓝牙BLE** 1、作为主机scan模式下，在scan结果会有返回；adv_report_t 结构体带有rssi值。 ```C static bool __resolve_adv_report(adv_report_t *report_pt, u16 len) typedef struct { u8 event_type; //对方广播包类型: 0--ADV_IND,1--ADV_DIRECT_IND,2--ADV_SCAN_IND,3--ADV_NONCONN_IND,4--SCAN_RSP u8 address_type; //对方地址类型：0--public address,1--random address u8 address[6]; //peer_address s8 rssi; //range:-127 ~128 dbm u8 length; //广播包长度 u8 data[0]; //广播包内容 } adv_report_t; ``` 2、当 BLE连上后（无论是做主机或者从机模式），可通过链路conn_handle获取rssi值，提供接口如下。 ```C s8 ble_vendor_get_peer_rssi(u16 conn_handle); ```
**一、经典蓝牙EDR** 1、作为主机搜索模式下，在搜索结果会有返回rssi值。 ```C u8 bt_emitter_search_result(char *name, u8 name_len, u8 *addr, u32 dev_class, char rssi) ``` 2、当 EDR连上后（无论是做主机或者从机模式），可通过对方地址来获取rssi值，提供接口如下。 ```C s8 bredr_get_rssi_for_address(u8 *address); ``` **二、低功耗蓝牙BLE** 1、作为主机scan模式下，在scan结果会有返回；adv_report_t 结构体带有rssi值。 ```C static bool __resolve_adv_report(adv_report_t *report_pt, u16 len) typedef struct { u8 event_type; //对方广播包类型: 0--ADV_IND,1--ADV_DIRECT_IND,2--ADV_SCAN_IND,3--ADV_NONCONN_IND,4--SCAN_RSP u8 address_type; //对方地址类型：0--public address,1--random address u8 address[6]; //peer_address s8 rssi; //range:-127 ~128 dbm u8 length; //广播包长度 u8 data[0]; //广播包内容 } adv_report_t; ``` 2、当 BLE连上后（无论是做主机或者从机模式），可通过链路conn_handle获取rssi值，提供接口如下。 ```C s8 ble_vendor_get_peer_rssi(u16 conn_handle); ```
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