Application runs only after "Build and Debug"

[Pascal__]

Hey, 

I don't get my application run on the nrf52840-dk board. Only if I choose "Build and Debug" I can run my software. Shouldn't the application start after I connect to power after I downloaded the software onto the device? How do I get the application work without using a  PC and just connect is to any USB port.

Kind regards,

Pascal

[Amanda Hsieh]

Hi, 

 

 Yes, it should be like that. Do you use Segger with J-Link to load the application? Which example are you using?

I will suggest to use BLE Blinky Application to start.

Best regards,

Amanda

 

[Pascal__]

Yes Blinky application works. 

I got it now. I had a mistake in my code. I used the function printf(), which works ok in the debugger mode but not when you want to use the board standalone. I guess it causes an error in the application. 

[Amanda Hsieh]

Good to know that you find the root cause. 

Cheers,

Amanda