WP7702 ULPM (firm 002.015)

Dear All,
can someone confirm this steps…

Ultra Low Power Manager Firmware Version: 002.015 (is it the latest?)

To put device in ULPM:

  1. issue this command:

echo -e “at+cpsms=0\r\n” > /dev/ttyAT

  1. Radio must be off (if radio is on ULPM cant enter)

  2. In my case i’ve INT1 from BMI160 linked to GPIO38 … so i give command

pmtool bootOn gpio 38 low

  1. and later

pmtool shutdown

It works. Device goes to ULPM and wakeup on movement.

The curious thing is…

root@swi-mdm9x28-wp:~# pmtool bootReason gpio 38
Boot source gpio38? No

Am I doing something wrong?


Ok, using AT commands is so much better and works also with radio on.

Here is the working sequence for me:


send on device boot to avoid unrequested PSM

then… to enter ULPM: