SLM application and UART

[Bard]

Hi

Does the SLM application turn off the UART? I need the UART to be turned off whenever its not in use due to power consumption.

Still, the modem should be on to support PSM operations. 

Is this already supported in the SLM application?

[Øyvind]

Hello, 

I will need to forward this question to our SLM developer, and will get back to you within tomorrow.

Kind regards,
Øyvind

[Øyvind]

Hello, 

AT#XSLEEP command is intended for this use. Issuing either AT#XSLEEP=0 or AT#SLEEP, this will turn off UART and put APP core to IDLE. AT#XSLEEP=1 will put the device into deep sleep, turning off the modem.

Have a look at the enter_idle function and the enter_sleep function in the SLM application. These are handled in the sleep handler: handle_at_sleep.

Kind regards,
Øyvind

[Bard]

Hi

Just to be sure.. putting the application in SHUTDOWN_MODE_IDLE; The modem will still be in PSM mode and any unsolicited response from the modem will NOT be a problem even though the AT host is uninitialized?

[Øyvind]

Hi, 

Yes, that is correct. 

-Øyvind