Zephyr RTT Problems

[Jonas Woerner]

Hi,

I am desperately trying to read some RTT Input with Zephyr, but I just cant get it to work!

All I want is to read the RTT Input. I tried with the console and the shell subsystem, but did not get it to work. I can see my logging messages, but cannot write anything.

CONFIG_CONSOLE=y

CONFIG_USE_SEGGER_RTT=y

CONFIG_RTT_CONSOLE=y

CONFIG_CONSOLE_SUBSYS=y

CONFIG_CONSOLE_GETLINE=y

CONFIG_LOG=y

CONFIG_LOG_PROCESS_THREAD=y

CONFIG_LOG_BACKEND_UART=n

CONFIG_LOG_DEFAULT_LEVEL=3

CONFIG_LOG_STRDUP_BUF_COUNT=100

strcpy(test,console_getline());

is what my last attempt looked like. but no success.

I also tried using the SEGGER RTT library, but as soon as I use it, I cannot even see my log output.

Appreciate any help!

thanks,

Jonas

[Jonas Woerner]

Ok, I did not get console_getline() to work, But I got raw segger_read to work. I used the wrong libs(downloaded from segger) instead of the zephyr supplied one. 

[Simon]

Have you seen this ticket: https://devzone.nordicsemi.com/f/nordic-q-a/64904/can-i-use-rtt-instead-of-uart-for-a-console-on-nrf5340? 

Best regards,

Simon