Build and run - not running immediately

[Ros]

Hi,

I ported an nrf example from nRF5 SDK version 12.3.0 ble_proximity to segger studio (v4.50), and flashed into nRF51DK, using build and run option. The application is not running immediately but runs after pressing boot reset it works normally. The application can also starts on power-up. Is there any reason that not running immediately after flashing?

Thanking you

Ras

[Edvin]

Hello,

This sounds like an IDE setting that isn't set properly. 

Perhaps you can check this set of settings:

Alternatively, perhaps one of the suggestions in this ticket will help in your case:

https://devzone.nordicsemi.com/f/nordic-q-a/40349/segger-embedded-studio-project-does-not-run-code-without-press-reset-button

Best regards,

Edvin

[Ros]

Hi,

Thank you for the reply. My Segger Studio settings are same as in the image posted, and the problem is not solved in the link provided as well. So I think there is some bug with old nRF51 devices.

Regards,

Ras

[Edvin]

I am not sure exactly what setting that is required for this to work properly. I suggest you contact segger if you are still stuck. They will probably be able to tell you what setting that does this.

As an alternative, you can use build and debug, where you should be able to press reset and run to start the application.

If you just want to build and flash you can always reset the device (and flash for that matter) using nRF Command Line Tools, and the commands:

"nrfjprog --program application_hex_file.hex" to flash ("application_hex_file.hex being the path to your application's hex file), and

"nrfjprog --reset" to reset the device.

Best regards,

Edvin

[Ros]

Hi,

Thanks for the reply. Yes, I can use debug and run, but when it was not running after build-and-run option, I initially thought there were issues with my program. As I am not developing anything seriously for nRF51, it is not a big issue. I found similar post in Segger forums but not solved. I will use reset button to run.

Regards

Ras