Serial(UART) DFU problem

[EthanZhao]

Hi there,

I'm following the step in  https://devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/software/posts/ncs-dfu#serial_dfu  Serial DFU

Here is my code 

Then I flash into the EVB, but it seems there is no build time & the "Hello World" print out in my log.

How can I fix this problem? thanks~

[Amanda Hsieh]

Hi, 

You could refer to the example project https://github.com/simon-iversen/sdk-zephyr/tree/serial_dfu_hello_world/samples/hello_world.  

Regards,
Amanda H.

[EthanZhao]

Hi Amanda,

I have already refer to this example, but it still can't see the log about build time.

but after I remove all about the SMP Config & function, it's work. I can see the build time in the console.

Is there problem about SDK version? I'm working with NCS 2.0.0

thanks~

[Amanda Hsieh]

Hi, 

Do you use J-Link RTT viewer to check the RTT log?

With that example, you should check the RTT Console instead of UART Console for the application. The Boot log will show in the UART Console. See https://github.com/simon-iversen/sdk-zephyr/blob/serial_dfu_hello_world/samples/hello_world/prj.conf#L14. 

In that tutorial:

Regards,
Amanda H.