Radio Test Example using SeggerRTT?

[anasimtiaz]

Hi,

I have to prepare my devices for certification and I am hoping to use the radio test example as suggest by most people here on the devzone to be the most convenient way of setting up the devices for continuous transmission in single frequency mode. However, not having any accessible pins on the samples, I was wondering if it is possible to use the programming interface, instead of the UART, to send commands over to the DUT?

In response to the question here: https://devzone.nordicsemi.com/f/nordic-q-a/16142/production-rf-test/61578#61578 It has been pointed out that is is possible:

Note that if you don't have UART interface you can also use the SWD interface (the programming interface) and use SeggerRTT to send command or receive data.

So can someone please point me in the direction of how to go about this, if possible?

[Andreas]

Hi,

 

If you want to avoid RTT altogether you can also look at how to initiate the tests wirelessly. If you e.g. look at the radio receiver and radio transmitter examples, you could probably quite easily make the DUT power up into RX, wait for a packet, and based on what button of whatnot is transmitted from a TX (e.g. DK), the DUT could switch mode into whichever mode/state is wanted.

 

Another alternative is to make do with any pins you have laid out. You could emulate a button by asserting pins, even if they have been connected to things in the layout will let you control the FW or at least set up one test mode after startup.

 

Best regards,

Andreas

[anasimtiaz]

Thanks. I am going to try the ratio tx and rx examples now.