why are the random addresses the some?

RE: why are the random addresses the some?

Ole Morten — Fri, 16 Aug 2013 09:59:21 GMT

Good! To help other finding and reading this question later, it would be very useful if you could accept Carles' answer. :-)

RE: why are the random addresses the some?

andy2003hunan — Fri, 16 Aug 2013 08:30:47 GMT

TKS.I got it.

RE: why are the random addresses the some?

Carles — Fri, 16 Aug 2013 06:41:24 GMT

I am not sure I understand your question. As mentioned in my reply, the static random address is fixed random number stored in a special register in flash, the FICR.

You can set your own address every time the application boots up, effectively overriding the default address and using your own one, of the type you see fit.

RE: why are the random addresses the some?

Carles — Fri, 16 Aug 2013 06:32:07 GMT

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

RE: why are the random addresses the some?

andy2003hunan — Fri, 16 Aug 2013 06:23:44 GMT

and i want to know where is the random address from?how does it come out?