Zephyr logging, release the UART

[BvdP4Celsius]

In the nordic,nrf52840dk_nrf52840.dts there is a part "chosen" that says:

zephyr,console = &uart0;
zephyr,shell-uart = &uart0;
zephyr,uart-mcumgr = &uart0;
zephyr,bt-mon-uart = &uart0;
zephyr,bt-c2h-uart = &uart0;

I am using both UART0 and UART1 for my application. How can I have some debug output (Ozone debugger) without interfering with my UART?

In my config file I wrote:

# Segger RTT
CONFIG_LOG=y
CONFIG_LOG_PRINTK=y
CONFIG_LOG_MODE_IMMEDIATE=y
CONFIG_RTT_CONSOLE=y
CONFIG_USE_SEGGER_RTT=y

[Susheel Nuguru]

I think you can use RTT as backend for logs

docs.zephyrproject.org/.../CONFIG_LOG_BACKEND_RTT.html

[BvdP4Celsius]

Adding the CONFIG_LOG_BACKEND_RTT=y to the prj,conf did not release the UART. The logging info is (also) visible on the UART port.

[Susheel Nuguru]

you might have to tell that you do not need uart logging, can you try this.

CONFIG_UART_CONSOLE=n
CONFIG_RTT_CONSOLE=y
CONFIG_HAS_SEGGER_RTT=y
CONFIG_USE_SEGGER_RTT=y

#CONFIG_LOG_BACKEND_RTT=y
#CONFIG_SHELL_BACKEND_RTT=y
#CONFIG_LOG_BACKEND_RTT_FORCE_PRINTK=y

[BvdP4Celsius]

Thanks,
CONFIG_HAS_SEGGER_RTT will generate an error, however te following settings worked for me:

CONFIG_LOG_PRINTK=y

CONFIG_LOG_MODE_IMMEDIATE=y

CONFIG_UART_CONSOLE=n

CONFIG_RTT_CONSOLE=y

#CONFIG_HAS_SEGGER_RTT=y

CONFIG_USE_SEGGER_RTT=y