Max Advertising interval in Eddystone example

RE: Max Advertising interval in Eddystone example

Susan_cfx — Wed, 19 May 2021 05:47:18 GMT

Hi Sigurd,

Got it, thanks for your support.

Sincerely,

Susan

RE: Max Advertising interval in Eddystone example

Sigurd — Tue, 18 May 2021 17:47:08 GMT

[quote user="Susan_cfx"]

Is there a range limit for the interleave ratio？

[/quote]

I don't see any max values defined.

[quote user="Susan_cfx"]if I configure the tx interval to 20s, the UID and URL slots can advertise as 20s interval, but the TLM slot will stop advertising[/quote]

Try reducing the interval, and/or the TLM interleave ratio.

[quote user="Susan_cfx"]In addtion, can UID , URL be set to different tx interval? e.g. UID 1s, URL 5s.[/quote]

No, looks like this is not supported/not implemented.

RE: Max Advertising interval in Eddystone example

Susan_cfx — Sun, 09 May 2021 13:30:33 GMT

Hi Sigurd,

Forgot to tell you the interval of TLM that stopped,

the TLM interleave ratio are 20, so the interval of TLM is 400s.

Is there a range limit for the interleave ratio？

Best regards,

Susan Sun

RE: Max Advertising interval in Eddystone example

Susan_cfx — Sun, 09 May 2021 13:24:51 GMT

Hi Sigurd,

Thanks for your explaination.

The firmware we created based SDK14, if I configure the tx interval to 20s, the UID and URL slots can advertise as 20s interval, but the TLM slot will stop advertising, can you help me analyze the reason?

In addtion, can UID , URL be set to different tx interval? e.g. UID 1s, URL 5s.

Thank you very much.

Sincerely,

Susan

RE: Max Advertising interval in Eddystone example

Sigurd — Fri, 07 May 2021 14:49:27 GMT

Hi,

[quote user=""]

The same settings in application, different SDK, Why the maximum interval that can be set is different？ Thanks in advance.

[/quote]

There has been some changes in the SDK since SDK 14. E.g. in SDK 15 we have this change mentioned on the release notes:

 - Lowered the advertising interval in the Eddystone example (ble_app_eddystone), because some advertising packets would be lost when combined
	with the timeslot API.
 - Reduced the maximum supported value for advertising interval in Eddystone from 20000 to 16384. If a higher value is set, the SoftDevice returns
	an error code that asserts the application.

and in SDK 16 we have this bug-fix:

- Eddystone: fixed bug for handling 0.625 unit in advertising interval.

So 20000 advertising interval is not longer supported.