libuarte retarget ?

RE: libuarte retarget ?

Vidar Berg — Fri, 29 Oct 2021 13:29:39 GMT

The post you linked to is outdated. Now, most of the SDK examples come ready with RTT logging support, just make sure you have the NRF_LOG_BACKEND_RTT_ENABLED option enabled in your sdk_config.h file.

Testing RTT logging with the original libuarte example

1. Add #include "nrf_log.h" at the beginning of main.c

2. Add this line somewhere after the logger as been initialized in main(): NRF_LOG_INFO("Libuarte example started");

RE: libuarte retarget ?

RixtronixLAB — Fri, 29 Oct 2021 04:32:41 GMT

This one is related ?

devzone.nordicsemi.com/.../debugging-with-real-time-terminal

RE: libuarte retarget ?

RixtronixLAB — Thu, 28 Oct 2021 11:45:54 GMT

What's the function for printing message to J-link rttviewer ?

RE: libuarte retarget ?

RixtronixLAB — Thu, 28 Oct 2021 11:45:00 GMT

That one ?

RE: libuarte retarget ?

RixtronixLAB — Thu, 28 Oct 2021 11:41:06 GMT

https://www.segger.com/products/debug-probes/j-link/tools/rtt-viewer/ ?

It's different with serial ?

RE: libuarte retarget ?

Vidar Berg — Thu, 28 Oct 2021 11:30:01 GMT

You can view the logs with Jlink RTT Viewer og Jlink RTT Client: https://www.segger.com/products/debug-probes/j-link/technology/about-real-time-transfer/

RE: libuarte retarget ?

RixtronixLAB — Thu, 28 Oct 2021 11:28:26 GMT

how can we print out the debug message then ? thanks

RE: libuarte retarget ?

Vidar Berg — Thu, 28 Oct 2021 08:45:02 GMT

The logger module is configured with the RTT backend because the UARTE0 instance normally used by the UART log backend is assigned to the libuarte driver.

printf's over UART are not supported in this example.

RE: libuarte retarget ?

RixtronixLAB — Thu, 28 Oct 2021 05:43:00 GMT

Is NRF_LOG_INFO using UART or libuarte on this example ?

E:\nRF5_SDK_17.0.2_d674dde\examples\peripheral\libuarte\main.c

I can not display with NRF_LOG_INFO, and printf too...is it related with retarget.c?

Thanks

RE: libuarte retarget ?

RixtronixLAB — Thu, 28 Oct 2021 02:21:45 GMT

Hi, Vidar,

Thanks for the reply

Ok, I'll remove it and let's see...

RE: libuarte retarget ?

Vidar Berg — Wed, 27 Oct 2021 11:57:51 GMT

Hello,

retarget.c is made for the app_uart library, and does not work with libuarte. I suggest you remove retarget.c from your project.

Best regards,

Vidar