Hi,
I am developing a program for the nRF54L15 with the DFU bootloader enabled.
I would like to reduce the startup current.
I am using SDK 3.2.4.
The `sysbuild.conf` settings are as follows.
SB_CONFIG_BOOTLOADER_MCUBOOT=y
SB_CONFIG_BOOT_SIGNATURE_KEY_FILE="\${APP_DIR}/private_key.pem"
SB_CONFIG_BOOT_SIGNATURE_TYPE_ED25519=y
SB_CONFIG_MCUBOOT_SIGNATURE_USING_KMU=y
SB_CONFIG_MCUBOOT_GENERATE_DEFAULT_KMU_KEYFILE=y
The `mcuboot.conf` settings are as follows.
CONFIG_SERIAL=n
CONFIG_BOOT_VALIDATE_SLOT0=n
CONFIG_SPEED_OPTIMIZATIONS=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
When booting with these settings, an average current of 1.8 mA flows for a period of approximately 470 ms, as shown in the image below.
What operation is causing this current draw?
Is it possible to further reduce the current or shorten this duration?
Best regards.
