How to prevent boot info being sent out over UART on initial start up

[Mike Austin (LPI)]

When I have the UART connected to Terminal, and I reboot my hardware, I get all the following information sent out:

*** Booting Zephyr OS build v3.2.99-ncs1 ***
I: Starting bootloader
I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3
I: Boot source: none
I: Swap type: none
I: Bootloader chainload address offset: 0xc000

I am setting up some factory testing, where the result of the testing will get sent to my terminal software after each device has been tested, but I don't want all the above information clogging up my file.

Is there an easy way to disable this information from being printed to the UART?

Regards,

Mike

[runsiv]

Hi, 

You can use the Kconfig symbol CONFIG_BOOT_BANNER to =n to remove the Zephyr boot message from the startup. 

Regards

Runar

[Mike Austin (LPI)]

Hi Runar,

Do I stick that in my prj.conf file?  I did try that, and its still printing out the boot info via the UART

Regards,

Mike

[runsiv]

Hi, 

That is correct. 

What is your log level set to? 

Regards

Runar

[Mike Austin (LPI)]

I've got it set up as follows:

# Logging

CONFIG_LOG=n

CONFIG_BOOT_BANNER=n

[Mike Austin (LPI)]

Just remembered that I have a child image (running mcuboot) but I've just added:

CONFIG_LOG=n

CONFIG_BOOT_BANNER=n

to my mcuboot.proj and that's now preventing the boot banner from being sent out over UART

Regards,

Mike