NRF_LOG_HEXDUMP_DEBUG not showing data

[tejaChintalapati]

Hi,

I am tring to display some information using NRF_LOG_HEXDUMP_DEBUG(). However, I can't see anything on the terminal. If I use NRF_LOG_INFO("xxxxx"), I can see the data displayed on the termimal.

Here's some more information on setup:

1. NRF_LOG_DEFAULT_LEVEL is set to "Info"
2. NRF_LEG_DEFERRED is set to 1
3. There's a strong chance that the hex data(dynamic memory) will be "freed" by the time logger logs this data.

I don't completely understand what's causing the issue. Can you please help me understand and help solve the problem?

[Vidar Berg]

Hi,

Debug level logs will not be displayed if the log level is set to "info". Try to change the NRF_LOG_DEFAULT_LEVEL  to "Debug"

[tejaChintalapati]

Hi Vidar,

I figured it out. SES isn't showing the data on its termial while J-Link  RTT Viewer is displaying all the datacorrectly.

Weird flex but okay.

[Vidar Berg]

Thank you for the update. Could you let me know what SDK version you use? I don't think I have seen this exact issue before. 

[tejaChintalapati]

That would be nRF5_SDK_16.0.0_98a08e2.

[Vidar Berg]

You may try to disable the NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED option in sdk_config if you have not done it already. I did a quick test here with a 64B buffer but did not manage to replicate the issue.

[tejaChintalapati]

Great!

Disabling the NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED  helped. I can now see the data on the Debug Terminal in SES.

Thanks Vidar, for all the help. Appreciate it.