Running lwM2M_client routine into PSM with nRF9160 is about 450uA current

[pengfeilaw]

Running lwM2M_client routine into PSM with nRF9160 is about 450uA current，RTT is used for logging and all UART is disable.

I use ncs1.6.0.

What's causing 450ua?

How can I solve this issue?

[Øyvind]

Hello, 

Have you also configured CONFIG_SERIAL=n in both SPM and your application? You can add the folder child_image with the file spm.conf, then add the following to test:

# Enable below for power saving
CONFIG_ASSERT=n
CONFIG_SERIAL=n
CONFIG_CONSOLE=n
CONFIG_UART_CONSOLE=n
CONFIG_LOG=n
CONFIG_LOG_BACKEND_UART=n

Kind regards,
Øyvind

[pengfeilaw]

I did as you suggested, but it was useless.CONFIG_SERIAL remains 1 in the autoconf.h file.

I have tried setting CONFIG_SERIAL to 'N' before and the result is the same as your opinion.Can you take a test?

[Øyvind]

Please do not mark ticket with "verified answer" or "suggest as answer" if you have not been able to solve the issue. This will close the ticket and no further updates possible.

Are you able to share your project with me?

Thanks. 

Kind regards,
Øyvind