Hello,
Creating a simple project in nrf connect 2.6.1 I start with looking at power consumption.
I need upgrade over USB, so I have added this to .prj:
CONFIG_MCUMGR=y #CONFIG_MCUMGR_TRANSPORT_UART_MTU=512 CONFIG_NET_BUF=y CONFIG_ZCBOR=y CONFIG_CRC=y CONFIG_STREAM_FLASH=y CONFIG_FLASH_MAP=y CONFIG_FLASH=y CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2304 # Enable most core commands. CONFIG_IMG_MANAGER=y CONFIG_MCUMGR_GRP_IMG=y CONFIG_MCUMGR_GRP_OS=y #CONFIG_MCUMGR_GRP_STAT=y # Disable UART Console and enable the RTT console CONFIG_UART_CONSOLE=n CONFIG_RTT_CONSOLE=y CONFIG_USE_SEGGER_RTT=y # Enable USB subsystem CONFIG_USB_DEVICE_STACK=y # Using nordic VID CONFIG_USB_DEVICE_VID=0x1915 CONFIG_SERIAL=y CONFIG_UART_LINE_CTRL=y CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n # USB backend is serial device # Enable the serial mcumgr transport. CONFIG_MCUMGR_TRANSPORT_UART=y CONFIG_BASE64=y CONFIG_CONSOLE=y
In the idle state of the program, the current consumption is around 1.45mA.
If I remove the project CONFIGs stated above, the current consumption is normal in the idle state.
It does not matter wether <usb_enable(NULL);> is called or not.
I suspect the serial interface (because there is no difference if the USB part is commented out).
How to turn off or disable serial and/or mcumgr for the sleep state, and turn it on again for the active state?
Thanks in advance.
