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How do I read the unique serial number of the ST BlueNRG-LP(BlueNRG-345) device that I need to use as the default MAC address

Fx.1
Associate II

‎2022-03-25 07:02 PM

 
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Sebastien DENOUAL
ST Employee

‎2022-03-28 02:02 AM

Hi @Fx.1​ ,

Let me share with you PM0269 document : This is BLE Stack Programming guide.

You may refer to section 3.1.1 describing Bluetooth LE addresses managment.

The BlueNRG-LP device does not have a valid preassigned MAC address, but a unique serial number (read only for the user).The unique serial number is a 8-bytes value stored at address 0x10001EF0: it is stored as two words at address 0x10001EF0 and 0x10001EF4.

If you want to use static random adress : this address is generated and programmed at very 1st boot. This address is used and remains unchanged during whole product life (except is a mass erase of the flash is performed)

Regards,

Sebastien.

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