How to verify that the 32MHZ crystal is actually working (nRF52832?

[abdosalm]

I am using nRF connect SDK v2.9.0 with a custom developed board that looks like this:

I tried the 'Bluetooth LE LED Button service' sample as it's and noticed that nothing was working. I grapped my logic analyzer and hooked it up onto the 32MHZ but nothing is showing. I mean other functionalities like zepyrRTOS, PWM, GPIOs, I2C, etc...  are working successfully but not BLE.

does the nRF52832 have an internal clock through which it works by default and if so, how does it use the external clock. what is the first thing to debug?

this is the crystal I am using:

https://www.lcsc.com/product-detail/Crystals_YXC-Crystal-Oscillators-X322532MOB4SI_C9009.html 

and these are the schematics:

[abdosalm]

Sorry for the late reply,

When you first replied above with the '.hex' file to be flashed onto the target. When I tried to do it via black magic debugger, the debugger gave me an error but I tried to do it again today with segger jlink and it was downloaded successfully. 

Unfortunately, I have damaged all of my UFL male PCB connectors and I have ordered some that are expected to arrive in 20 days, until then, I can think of nothing to do to debug my problem. once the connectors arrive, I will keep you updated on my problem.

[JONATHAN LL]

abdosalm said:

Unfortunately, I have damaged all of my UFL male PCB connectors

As long as the antenna works you should be able to get some results, as you see from the images i shared there is no need to use the UFL connector here,  so no ned to connect the two units.

Regards,
Jonathan

[abdosalm]

Got it.

But there still exists a small problem, should be the unit that's it to be connected to the RSSI app to have a tuned antenna which I don't have. That's why I have ordered the nRF52840 Module USB Dongle like in the image:

to use it as a packet sniffer, or don't I have to?

[JONATHAN LL]

We are only interested in seeing if the device works to some extent, even with a poorly tuned antenna you might still see something and could still get some range. But that we dont know, so the antenna might work fine. 

Also with the hex file i shared we are not looking to sniff packets, we only look at the transmitted signal, there is no data there. Only a continues wave. 

If  you have a nrf52DK and your custom board then that is enough to do the test. 


Regards,
Jonathan

[abdosalm]

That's my small problem: I don't have an nrf52DK. I have multiple of my custom boards. That's why I ordered the nRF52840 Module USB Dongle. So can I use 2 of my custom boards to do that test? or shall I have the nRF52840 Module USB Dongle to do the test?