NRF9160 Can't See Zephyr Shell when SPM has Serial Enabled

[mlang3440]

If I enable the zephyr shell inside my project with the following config; I'm not able to see anything on the UART If I have CONFIG_SERIAL=y in the SPM prj.conf, If i disable SERIAL in the SPM prj.conf then the shell works normally. What is the reason that is happening?

CONFIG_SHELL=y
CONFIG_SHELL_BACKENDS=y
CONFIG_SHELL_BACKEND_SERIAL=y
CONFIG_SHELL_BACKEND_SERIAL_INTERRUPT_DRIVEN=y
CONFIG_DEVICE_SHELL=y
CONFIG_KERNEL_SHELL=y
CONFIG_THREAD_MONITOR=y
CONFIG_INIT_STACKS=y
CONFIG_THREAD_NAME=y
CONFIG_SHELL_CMDS=y
CONFIG_SHELL_ECHO_STATUS=y

[Heidi-Irene Harvey Sollie]

Hi!

Can you try enabling SERIAL_SUPPORT_INTERRUPT?

If that doesn't work, please zip your whole project so I can take a look.

Best regards,

Heidi