Various notification delays

RE: Various notification delays

Kenneth — Thu, 22 Nov 2018 15:24:48 GMT

Can you try to change to NRF_SDH_CLOCK_LF_ACCURACY 0 to see if that change behaviour?

Best regards,
Kenneth

RE: Various notification delays

Kasper Leonhardt — Thu, 22 Nov 2018 12:30:26 GMT

I do not think so . . I have place a log message in the call back function when writing to the flash. Nothing here. Nothing in the application seems to take any resources.

RE: Various notification delays

Kenneth — Wed, 21 Nov 2018 20:37:30 GMT

Is it possible that you are doing some scanning at the same time here, have other links active, using timeslot, or are doing flash operations (e.g. erase).

Kenneth

RE: Various notification delays

Kasper Leonhardt — Wed, 21 Nov 2018 14:52:34 GMT

Hi,

Thanks for the follow-up.

Slave latency is 0 in both peripheral and central device.

The LFCLK config is following:

#define NRF_SDH_CLOCK_LF_SRC 1
#define NRF_SDH_CLOCK_LF_RC_CTIV 0
#define NRF_SDH_CLOCK_LF_ACCURACY 7
#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 0

I believe that the first one sets the external crystal as source, and therefore the rest has no effect.

The result from sd_ble_gatts_hvx is always NRF_SUCCESS. However I send too many notifications, I receive NRF_ERROR_RESOURCES. But the response time is not affect by this.

Kasper

RE: Various notification delays

Kenneth — Wed, 21 Nov 2018 14:24:06 GMT

Hi,

What is the connection parameters here? For instance is slave latency = 0?

What is the LFCLK configuration here when you enable the softdevice?

Also you calling sd_ble_gatts_hvx() as expected, is it returning any error code?

Best regards,
Kenneth