connection problem with nrf52832

[Berker]

Hi,

I tried, ble_blinky example on DK, it works well. Also advertising interval 40ms on nrfconnect mobile app,this is consistent with SDK. 

Now, i try same example with custom board( i'm sure custom board work properly), nrfconnect app shows adevertising interval as 400ms, this is false, another bad news, the connection never be successful. 

My antenna design is not perfect,i know. It is seen by nrf connect app RSSI value. What is the reason of bonding or connection problem. Connection logs,say 0x85 gatt arror also. 

Best Regards

Berker 

[Sigurd]

Berker said:

Is there a wrong thing?

No, that is OK. You can use the internal 32.768 kHz RC oscillator, but it's important that it's correctly configured. (NRF_SDH_CLOCK_LF_SRC 0, NRF_SDH_CLOCK_LF_RC_CTIV 16, NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2 and NRF_SDH_CLOCK_LF_ACCURACY 1).

[Berker]

Ok,thanks 

I will try some clock configurations.

Maybe another topic,but if you can help, I will be pleased

I use DK while programming custom board. I try loading ble_blinky example to custom board,but DK also loaded with blinky_example. Mobile app shows 2 advertising devices one custom board,another one DK. I only want to load custom one.

How can i solve this?

Best Regards 

[Sigurd]

Then the DK was probably already flashed with the ble_blinky example before you programmed the custom board. 

When the custom board is powered, the programmer on the DK will detect the supply voltage of the custom board and program/debug the target chip on the custom board instead of the on-board nRF52832.

[Berker]

Thanks 

You're right, DK already intstalled with an example.