Help Understanding Troubleshooting with RTT Viewer

[mvpete]

Hi there,

I am using a nRF52840 development board, I've been able to get the blinky app to work. However, when I put the ble_app_blinky on the board, I am unable to discover the device via bluetooth. I'm not sure how to troubleshoot where things are getting hung up.

I've attempted to use the RTT View to look at some log lines. When I set up RTT view for the 52840 using SWD @ 4000 hz. I can't connect at all.

Not really sure where to go from here for troubleshooting resources.

I'm using Windows. I used SEGGER Studio to build, then nRF Connect to flash the board. It's a Nordic nRF52840 10059.

Thanks in advance.

[Vidar Berg]

Hi,

The example should work out of the box, maybe you haven't programmed the Softdevice (Nordic BT stack)? The softdevice needs to be programmed separately if you use nRF connect for programming unlike Segger embedded studio which uploads it automatically along with the app FW. To upload code through Segger embedded studio: select "debug" from the menubar then click "Go". 

Note that logging is over UART by default, you can change it to RTT by setting the NRF_LOG_BACKEND_RTT_ENABLED symbol to '1' in sdk_config.h.