Log Timestamp issues NRF52

[mort809]

Hello!

Recently I was asked to find a way to enable timestamps in our debug logs to make it easier to track performance during various stages of the operation of our device.

I found a few blog posts detailing the process and saw that you have to enable NRF_LOG_USES_TIMESTAMP in the sdk_config.h file. I enabled that, expecting that to be the end and now when I start up my debug session the device hardfaults and doesn't run the program. 

Doing a little more digging I found the following blog post https://devzone.nordicsemi.com/f/nordic-q-a/43701/logging-with-timestamp-on-sdk-15-2. It instructs the questioner to enable NRF_LOG_USES_TIMESTAMP, as I did, and then NRF_LOG_INIT(app_timer_cnt_get), which I changed my code to run. Unfortunately this didn't fix the hardfaulting issue. 

 

As soon as I set NRF_LOG_USES_TIMESTAMP to 0 as it was before my program runs as expected. What step am I missing to enable the timestamp?

For reference

I am on SDK version 17.0.2

my chip is an nrf52832

I am developing using Segger Embedded studio and hope to be seeing the timestamps in it's built in terminal. 

Thanks in advance, please let me know if you need any additional information.

[Simonr]

Hi again

That seems to be correct as well, can you check what this define is set to in your sdk_config.h file as well NRF_LOG_STR_FORMATTER_TIMESTAMP_FORMAT_ENABLED. If it's set to 0, try setting it to 1 to enable the Timestamp format when logging. Also, make sure the nrf_cli.c and .h files are included in your project.

If that doesn't help either, try to debug to find the reason for this hardfault. You can use the ble_app_att_mtu_throughput or ble_app_cli applications as reference, as they already support logging with timestamps.

Best regards,

Simon