GETTING STARTED
24
MultiConnect
®
Dragonfly
TM
MTQ-MNA1-B01 Device Guide
The device is configured for Verizon.
To switch carrier networks:
From AT&T to Verizon:
AT#FWSWITCH=1,1
From Verizon to AT&T:
AT#FWSWITCH=0,1
Note:
For the Link status (LS) LED to function, you must issue the command AT#GPIO=1,0,2 any time you use
the firmware switch command (AT#FWSWITCH=0 or AT#FWSWITCH=1).
Powering Down Your Device
CAUTION:
Failing to properly power down the device before removing power may corrupt your device's file
system.
To properly power down your device, do one of the following options:
Option 1:
:
1.
Issue the AT#SHDN command.
2.
Wait 30 seconds.
3.
Power off or disconnect power.
Note:
If you send AT#SHDN and do not remove power AND the ONOFF line is high, the radio restarts after 60
seconds.
Option 2:
1.
Hold signal ONOFF (processor pin PC13) low.
2.
Monitor signal VDD1_8_MON (processor pin PC5). When it goes low, the radio is powered off and it is
safe to remove power.
Device Reset (NRESET Pin 35)
NRESET pin 35 of the 40 pin connector is routed directly to NRST on the STM32F411RE processor.
There are two components to reset:
1.
Processor Reset
Multiple reset methods are available. Refer to STM32F411 documentation for details.
2.
Radio Reset
The STM32F411RE processor pin PC_13 is routed to a tiny9 supervisory processor that controls the radio.
If PC_13 is driven low for >50ms and <1s, the radio is reset.
If PC_13 is driven low for >1s, the radio is powered down.
