nRF9160 disable Bootloader and SPM uart console print

[nRF9160]

I want to disable MCUBoot, SPM debug log on UART. 

CONFIG_BSD_LIBRARY=y
CONFIG_GPIO=n
CONFIG_SERIAL=y
#CONFIG_STDOUT_CONSOLE=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_AT_HOST_LIBRARY=n
CONFIG_TEST_RANDOM_GENERATOR=y
#CONFIG_HW_STACK_PROTECTION=y
CONFIG_REBOOT=y
CONFIG_NETWORKING=y
CONFIG_NET_BUF_USER_DATA_SIZE=1
CONFIG_NET_SOCKETS_OFFLOAD=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y
CONFIG_NET_RAW_MODE=y
#CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_LOG=n
CONFIG_LOG_DEFAULT_LEVEL=4

# Stacks and heaps
CONFIG_HEAP_MEM_POOL_SIZE=4096
CONFIG_MAIN_STACK_SIZE=16384

# LTE link control
CONFIG_LTE_LINK_CONTROL=n
CONFIG_NO_OPTIMIZATIONS=y

CONFIG_MQTT_LIB=y
CONFIG_MQTT_LIB_TLS=y
#CONFIG_PROVISION_CERTIFICATES=y
#CONFIG_CERTIFICATES_FILE="certificates.h"

# SPI
#CONFIG_SPI=y
#CONFIG_SPI_SLAVE=y
#CONFIG_SPI_3_NRF_SPIS=y
# 2 = slave only
#CONFIG_SPI_3_OP_MODES=2
#CONFIG_SPI_ASYNC=y

# Application Upgrade support
CONFIG_BOOTLOADER_MCUBOOT=y

# Image manager
CONFIG_IMG_MANAGER=y
CONFIG_FLASH=y
CONFIG_IMG_ERASE_PROGRESSIVELY=y
CONFIG_DFU_TARGET=y

[Heidi-Irene Harvey Sollie]

Hi! 

To disable MCUBoot just set this config negative

CONFIG_BOOTLOADER_MCUBOOT=n.

To disable the output from the SPM, you could set

CONFIG_SERIAL=n.

Best regards,

Heidi

[nRF9160]

When i set CONFIG_SERIAL=n, undefined reference to UART APIs error received.

I am using UART0 in my application.

[nRF9160]

I have done this but both mcuboot and SPM log is still enabled

[Heidi-Irene Harvey Sollie]

No, it shouldn't.

[nRF9160]

when i disabled Console drivers in both MCUBoot configuration and SPM configuration in "Configure nRF connect SDK Project" from Segger embedded studio, Log is disabled. 

But i want to disable Logs through configuration done in .conf file because it remains forever. while configuration made through project gone on project rebuild.

[Heidi-Irene Harvey Sollie]

I want to disable MCUBoot, SPM debug log on UART. 

 I think I misunderstood your question Do you want to disable MCUBoot and SPM log or do you want to disable MCUBoot log and SPM log?

[MJD093]

Have you tried this?

CONFIG_SERIAL=n
CONFIG_STDOUT_CONSOLE=n
CONFIG_LOG=n
CONFIG_BOOT_BANNER=n
CONFIG_PRINTK=n

When I wanted to disable my UART0 and UART1 for power saving I had to use the above.

This allowed me to disable the UART0 peripheral (through additional code, this won't disable the peripherals, it will just stop them being used) as it was no longer being used by any other process and all printk() debug lines you place in your code will be surpressed so there shouldn't be any UART API issues.