RE: Not able to do firmware update using MCUBOOT over UART

Amanda Hsieh — Thu, 08 Jul 2021 11:58:58 GMT

Hi,

Do you put the DK into MCUBoot’s DFU mode by pressing the reset button on the DK while holding down Button 1 on the DK?

Maybe you could try this uart_log_recovery.conf with ncs v1.4.0.

devzone.nordicsemi.com/.../uart_5F00_log_5F00_recovery.conf

CONFIG_LOG=y

# The build won't fit on the partition allocated for it without size
# optimizations.
CONFIG_SIZE_OPTIMIZATIONS=y

# Serial
CONFIG_SERIAL=y
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=n
CONFIG_UART_LINE_CTRL=y

# MCUBoot serial
CONFIG_MCUBOOT_SERIAL=y
CONFIG_BOOT_SERIAL_UART=y

CONFIG_LOG_BACKEND_UART=y
CONFIG_RTT_CONSOLE=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_RTT_TX_RETRY_CNT=2
CONFIG_RTT_TX_RETRY_DELAY_MS=2

CONFIG_PM_PARTITION_SIZE_MCUBOOT=0x10000

My colleague also uploaded the solution with NCS 1.6.0 to the blog.

-Amanda H.