User Guide

ME910G1 HW Design Guide
1VV0301593 Rev.7 Page 38 of 98 2021-02-02
A flow chart showing the AT commands managing procedure is displayed below:
Figure 7: AT commands managing procedure flow chart
Note: In order to avoid a back powering it is recommended to prevent
any HIGH logic level signal from being applied to the digital pins of
the ME910G1 when the module is powered off or during an ON-OFF
transition.
“Start AT CMD”
START
Delay = 300 msec
Enter AT <CR>
GO TO
“HW Shutdown
Unconditional”
AT answer in
1 sec ?
GO TO
“Modem ON Proc.”
“Start AT CMD”
END
Y
N