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why are the random addresses the some?

andy2003hunan

hi everyone.now i am developing a project with nrf51822.i am using the PCA10000 dongle to see some information of advertising packages. i moved out and pluged in the PCA10001 many times,but the random address are the some.why?general speaking,they should be different.

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    Hi there,

    By default the SD used the "Static Random" address type as defined by the Specification in GAP 10.8.1. This means that it is a random number but static: i.e. it does not change at all, it is actually stored in flash in a special register called the FICR and loaded from there every time the SD is initialized.

    You sound like you require a random private (non-resolvable) address, which is designed to change periodically. To do this, simply generate your own random number and use:

    sd_ble_gap_address_set()

    to set it.

    Regards,

    Carles

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  • 0

    Hi there,

    By default the SD used the "Static Random" address type as defined by the Specification in GAP 10.8.1. This means that it is a random number but static: i.e. it does not change at all, it is actually stored in flash in a special register called the FICR and loaded from there every time the SD is initialized.

    You sound like you require a random private (non-resolvable) address, which is designed to change periodically. To do this, simply generate your own random number and use:

    sd_ble_gap_address_set()

    to set it.

    Regards,

    Carles

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