I m unable to check sleep mode current of my EC20 module.
I m getting 35mA current in sleep mode. Plus I dnt think module is in sleep mode. Need assistance with flow of sleep mode in EC20.
Is the USB of the module still connected?
NO… its not connected. I hope ur talking about USB_VBUS
My flow for sleep mode is AT+CFUN=0 – Minimum functionality
AT+QSCLK=1 – DTR turned HIGH as suggested in Datasheet. Wakeup pin turned HIGH.
I think you can login in the EC20 via debug uart to check why the EC20 cannot go to sleep mode.
You can login in the modem and use cat /sys/kernel/debug/wakeup_sources to find out why the EC20 cannot go to sleep.
Hi… WOuld u mind sharing complete detail of this
Actually the EC20 is also running a Linux.
Is it miniPCIe ?
I m interfacing EC20 with STM32L$52re
Is the USB DP/DM connected?
No… It is disconnected
And how about the USB_VBUS?
that is disconnected as well
Did you use some other pin from the EC20?
I m using DTR pin WAKEUP PIN, TX, Rx pins for AT commands
How about the WAKEUP_IN pin? Is it always in High Level?
make sure that WAKEUP_IN pull up.
Yes it is HIGH Pulled up