M72EVB User Guide
M72_EVB_User_Guide_V1.0
18
5. Illustration
5.1. Power on
(1)
Connect M72-TE-A to the 60 pins connector on EVB.
(2)
Insert the plug of the 5V power adapter.
(3)
Switch S1 to
ON
state, switch S2 to
OFF
state, and switch S3 to
OFF
state. The LED L1 on
the EVB will be turned on.
(4)
Press the PWRKEY for about 2 seconds, and then the module begins running.
(5)
The LED L2 will be flashing at a certain frequency. The GSM working status of the module
can be judged by the LED status.
Please refer to document [3] for detailed network status indication.
5.2. Communication with the module
(1)
Connect the Serial Port on EVB to PC’s USB port with the USB to UART converter cable.
(2)
Open the HyperTerminal (AT command window) on PC. The location of the HyperTerminal
in windows XP is
START →program →accessory →communication →HyperTerminal. Set
appropriate Baud Rate (such as 115200 bps) and COM number which can be checked by the
Device Manager on PC.
(3)
Connect an antenna to the M72-TE-A with an RF cable.
(4)
Insert SIM card into the SIM card socket.
(5)
Insert earphone or handset into audio interface.
(6)
Power on the module by pressing PWRKEY button.
(7)
After waiting for 2~3 seconds, customer should first input “AT” or “at” string once or more
until receiving “OK” from the module in the HyperTerminal.
The module is set to auto-bauding mode in default configuration. This operation is done to
synchronize the baud rate between the computer and the module.
(8)
Input AT command and the module will execute its corresponding function.
Customer can refer to document [1] for the details of AT commands. For example, when
input “ATD112”, an emergency call will be established.
5.3. Firmware upgrade
(1)
Start the Firmware Upgrade Tool in the PC.
(2)
Press the START button in the Firmware Upgrade Tool.
(3)
Switch the S3 and S1 in the EVB to
ON
state.
(4)
After these steps, the firmware refreshing process will be proceeding.
For more details, please refer to document [4].
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