How to change advertising duration between channel 37,38 and 39?

[tedwu1]

Hello friend,

I use a sniffer to monitor the BLE advertising time. The duration between channels 37, 38 and 39 is 1.5mS. Can I change the duration? If yes, how to change the advertising duration?

Thank you in advance.

Ted Wu

 

[EduardoZamora]

Hello @tedwu1

Hope you are doing well.

Just to confirm, what device are you using?

Regards,
Eduardo.

[tedwu1]

Hi @EduardoZamora 

I used MCU QN9021.

Thank you very much.

Ted Wu

[EduardoZamora]

Hi,

I appreciate the information.

User is allowed to configure maximum time to remain advertising (timeout); and the minimum/maximum advertisement interval depending on a fast or slow advertisement (GAP_ADV_SLOW_MIN_INTV, GAP_ADV_SLOW_MAX_INTV).

Regards,
Eduardo.

[tedwu1]

Hi @EduardoZamora 

I think that  (GAP_ADV_SLOW_MIN_INTV, GAP_ADV_SLOW_MAX_INTV) configure the interval of advertising group of channel 37,38 and 39. But I want to change the duration between channel 37,38 and 39 at each advertising.

Thank you very much.

Ted Wu

[EduardoZamora]

Hi,

This may be handled by the BLE stack. For more information, please consult Core Specification – Bluetooth® Technology Website.

Regards,
Eduardo.