Add RTT Logs to mcuboot

RE: Add RTT Logs to mcuboot

Amanda Hsieh — Thu, 24 Feb 2022 11:25:48 GMT

Hi,

Try to add CONFIG_LOG=y in the prj.conf file. Connecting the RTT viewer to DK again before programming the new image, then it would get the new log.

-Amanda

RE: Add RTT Logs to mcuboot

Zada — Wed, 23 Feb 2022 17:27:53 GMT

I am still not getting any logs from MCUBoot.

I changed CONFIG_LOG_MINIMAL=y -> CONFIG_LOG_MINIMAL=n in ncs\v1.9.0\bootloader\mcuboot\boot\zephyr\prj.conf

I added the child_image\mcuboot.conf file and did a Pristine build.

I also commented out the RTT and logging from the prj.conf file.

# Disable UART Console and enable the RTT console

# CONFIG_UART_CONSOLE=n

# CONFIG_RTT_CONSOLE=y

# CONFIG_USE_SEGGER_RTT=y

# Some command handlers require a large stack.

CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096

# Config logger

# CONFIG_LOG=y

# CONFIG_LOG_BACKEND_RTT=y

# CONFIG_LOG_BACKEND_UART=n

Which should mean only mcuboot is placing the RTT control block into RAM. However, when I connect RTT I get no logs from it. The Firmware logs show up over UART now but no logs appear anywhere from MCUBoot. Am I missing a detail?

RE: Add RTT Logs to mcuboot

Amanda Hsieh — Wed, 23 Feb 2022 14:20:11 GMT

Hi,

I can get the RTT mcuboot log by modifing https://github.com/nrfconnect/sdk-mcuboot/blob/main/boot/zephyr/prj.conf#L32

CONFIG_LOG_MODE_MINIMAL=n # former CONFIG_MODE_MINIMAL

And use these config for child_image\mcuboot.conf:

CONFIG_PM_PARTITION_SIZE_MCUBOOT=0x10000

# Disable UART Console and enable the RTT console
CONFIG_UART_CONSOLE=n
CONFIG_RTT_CONSOLE=y
CONFIG_USE_SEGGER_RTT=y

# Config logger
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n

CONFIG_MULTITHREADING=y

RTT viewer:

The RTT bootload log only shows after programing the image, and RTT viewer needs to connect the DK again to get the app log. This is the normal scenario. If you have two RTT blocks in RAM, RTTViewer will only pick up one. That means it will be a bit random if it picks up MCUboot or the application.

Test file: devzone.nordicsemi.com/.../5417.hello_5F00_world_5F00_284513.7z for NCS v1.9.0.

Regards,
Amanda

RE: Add RTT Logs to mcuboot

Amanda Hsieh — Tue, 22 Feb 2022 11:52:37 GMT

Hi,

Sorry for the delay. I am working on your case and will reply later.

Regards,
Amanda