External crystal 32mhz not working on custom nrf52832 board

[joshi]

hi 

i am programing BLE blinky app blinky which advertise. yes, the same code i am trying on custom board works on nrf52DK which has LFRC crystal activated as mentioned on previous post. yes device is advertising and when i try to connect i manage to connect once and it works but after that i can not connect.no i have not try sniffer yet.

i then try to make another board with same component but doing the same thing. i am confused what to do now.

i am using this crystal 

7M-32.000MAHV-T. 

i also check the flag method to check if HF crystal is working or not but always return 0 so now HF crystal is not working and i do not have frequency generator. crystal connection are good.

well any help is appreciated.

thanks 

joshi

[Kenneth]

i try to connect i manage to connect once and it works but after that i can not connect

Is it possible that the application have entered sleep on disconnect or after timeout? Have you enabled logging to UART or SWD so that you can observe what the application is doing?

For instance check what the application is doing on BLE_GAP_EVT_DISCONNECTED event and BLE_ADV_EVT_IDLE event. It can also be that you have an assert, so maybe check app_error_fault_handler() for any asserts.

Best regards,
Kenneth

[joshi]

well i have debug the code with swd debug in segger studio and found that once it goes to advertising start, it does not make the flag value to one which makes sense that HFcrestal not working , i copy the code for flag from previous post. i think HFCLK is not working and code stuck on epp_error_weak.c . well can u please check my crystal is it ok or can i try 8pf or 16 pf value off c1,c2. one thing same code which is not working on my custom board works on nrf52DK and i have alredy activated LFCLK rc in sdk_config.h.

well any help is appriciated, sir.

[joshi]

i have received the email that my ticket is closed but i cound not receive any answer ,tet.

please help

[jjifa]

I have the same problem.
It doesn't work only for external crystals.

It used the recommended 12pF in the datasheet.
I used via for the connection between crystal and capacitor.
I will also test it by changing to 8pF and 16pF.