Set random Bluetooth Mac address ?.

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Last post
Sat, 2021-02-13 04:20
#1
jackyjoy123
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Last seen:2 weeks 3 days ago
加入:2020-11-28 13:17
Set random Bluetooth Mac address ?.

Hello,

I am using WiRa SDK 10.440.8.6 with a Dialog 14695 Dev Kit.

I would like to change the Bluetooth address randomly after each connection.

I am generating a new Mac Id randomly and setting it using ble_gap_address_set (). But, I dont see any change to the Bluetooth Mac address when I discover using a Bluetooth App like LightBlue.

Let me know the correct method to change the Bluetooth Mac address.

thanks

jackyjoy

Device:
DA1469x
Mon, 2021-02-15 16:01
PM_Dialog
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Last seen:20 hours 57 min ago
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加入:2018-02-08 11:03
Hi jackyjoy123,

Hi jackyjoy123,

By default, the device starts advertising with a static public BD Address. The default value is declared in sdk/ble/config/ble_config.h file. If another BD address is required, then the defaultBLE_STATIC_ADDRESS macro definition should be defined in config/custom_config_xxx.h file.

For example :

#define defaultBLE_STATIC_ADDRESS {0x01, 0x02, 0x03, 0x04, 0x05, 0x06}

To set a the BD address :

/*Initialize the BLE structure related to the BD address */

static const own_address_t user_bd_address = {

.addr_type = PRIVATE_RANDOM_NONRESOLVABLE_ADDRESS,

.addr = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06}

};

/ *设置蓝牙地址* /

ble_gap_address_set(&user_bd_address, 0x00FF);

Please also see theDA1469x Tutorial Advertising Conceptstutorial.

You could also use a random resolvable or a random non-resolvable address by using the ble_gap_address_set(). The renew duration can be se in defaultBLE_ADDRESS_RENEW_DURATION macro.

Thanks, PM_Dialog