No signal with custom nRF52840 board with SKY66114 front end.nf

RE: No signal with custom nRF52840 board with SKY66114 front end.nf

FormerMember — Mon, 30 Jul 2018 08:52:27 GMT

Could you check "manually" if you can start the 32 MHz crystal on the custom board?

NRF_CLOCK->TASKS_HFCLKSTART = 1;
while(NRF_CLOCK->EVENTS_HFCLKSTARTED == 0){};

RE: No signal with custom nRF52840 board with SKY66114 front end.nf

Adam — Fri, 13 Jul 2018 06:36:44 GMT

Hi Kristin,

Yes I have multiple boards and they all have this problem.

I received no response from the transmistter/receiver examples.

I also tried to scope the 32MHz crystal but I couldn't get a lock on either my board or PCA10056. Is this because the crystal is being started and stopped very rapidly?

Adam

RE: No signal with custom nRF52840 board with SKY66114 front end.nf

FormerMember — Tue, 10 Jul 2018 12:49:12 GMT

Do you have more than one custom PCB? If so, do you see the same problem on those PCBs?

To test the radio, could you test the radio transmitter and receiver example with PCA10056? Just to check if the radio works or not.