User's Guide

ME910C1 HW User Guide
1VV0301351 Rev. 2 Page 32 of 81 2017-07-19
A flow chart showing the proper turn on procedure is displayed below:
When the USB is connected or after the firmware updating,
Delay must be equal at least to 10 seconds.
“Modem ON Proc”
START
VBATT >
3.10V ?
ON_OFF* = LOW
PWRMON=ON
?
Delay = 5 sec (see note
below)
ON_OFF* = HIGH
GO TO
“HW Shutdown
Unconditional”
PWRMON=ON
?
Delay = 1 sec
GO TO
“Start AT Commands””
“Modem ON Proc”
END
N
N
Y
Y
Y
N