how to know the ble (32mb) crystal oscillator is work;

[syc776]

now i want to test ble(nordic 52840) but now can not get broadcast signal by mobile phone 

so i think the problem is 32mb ;

[Adrian Eggenberger]

Hi

The first step is to verify that the crystal may be started. If you have a debugger connected to the device you could stop right at the beginning of the main. Afterwarts set the TASKS_HFCLKSTART of the CLOCK peripheral to 1 to initiate the startup of the external HFCLK. If everything runs as expected you should see EVENTS_HFCLKSTARTED go to 1 and in the HFCLKSTAT register the SRC should change to Xtal. If s works that crystal starts correctly.

Regards Adrian