Unable to obtain repeatable scan response data.

[Sam273]

 Unable to obtain repeatable scan response data.

I can obtain advertising data and scan response data from 3rd party devices. I can obtain advertising data from my server repeatably, but when I try and obtain scan response data from the server I only receive it  once in a 20 minutes period.

I can see consistent scan response data from other BLE devices around.

I have access to both client and server. 

The server is configured as :

 

The client sets up to :

 

 

I print both the scan and advertised data.

I then call scan resume continuously to scan for devices (without the scan parameters).

[Sam273]

No I am using the internal oscillator, no LFXTAL.

fnOnAdvReport is called from a softdevices event BLE_GAP_EVT_ADV_REPORT. 

[Edvin]

What is your peripheral? Is that also a nordic? Is that also using the internal oscillator?

So for both your central and peripheral. What is:

#define NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_RC_CTIV
#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV
#define NRF_SDH_CLOCK_LF_ACCURACY

BR,

Edvin

[Sam273]

The Client and peripheral are configured as this

[Sam273]

with CTIV and CTIV_TEMP configured as zero.

[Edvin]

Try to set both the peripheral and central to this:

#define NRF_SDH_CLOCK_LF_SRC 0
#define NRF_SDH_CLOCK_LF_RC_CTIV 16
#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2
#define NRF_SDH_CLOCK_LF_ACCURACY 1

Does that change the behavior?

BR,

Edvin