WA_DEV_GL6100_PTS_001
Rev 002
May 24, 2010
43
GL61x0 Product Technical
Specification and User Guide
Interfaces and Peripherals
6.2.1.2.1.3.
2-wire Serial Interface RS-232 Implementation
The signals used in this implementation are as follows:
RS232-TXD
RS232-RXD
Note:
Although this case is possible, it is not recommended.
The flow control mechanism must be managed from the customer end.
Figure 27.
Serial Link Implementation for a 2-wire UART
The RS232-CTS and RS232-RTS signals are not used in this configuration. Configure the AT
command
AT+IFC=0,0
to disable the flow control function of the modem. Refer to document [7]
Firmware 7.42 AT Commands Manual (Sierra Wireless Software Suite 2.32) for more information
regarding AT commands.
6.2.1.2.2.
Autobauding Mode
The autobauding mode allows the GL6100 to detect the baud rate used by the DTE connected to the
RS-232 serial link. The autobauding mode is controlled by AT commands. Refer to [7] Firmware 7.42
AT Commands Manual (Sierra Wireless Software Suite 2.32) for more information.
6.2.1.2.3.
Serial Port Auto Shut Down Feature
The RS-232 serial link can be shut down when there is no activity between the DTE and the GL6100.
This can help improve the power consumption performance.
The Serial Port Auto Shut Down feature is controlled by the AT command
AT+WASR
. Enter:
AT+WASR=1,1,
”GPIO19”,10
to enter the serial port auto shut down mode
AT+WASR=0,1
to exit the serial port auto shut down mode
The RS-232 interface Auto Shutdown mode will immediately activate/deactivate after the AT
command set. To wake the GL6100 up from the Auto Shutdown mode, use the external trigger on the
DTR (set the signal from LOW to HIGH).
Refer to document [7] Firmware 7.42 AT Commands Manual (Sierra Wireless Software Suite 2.32) for
more information on the
AT+WASR
command.
Summary of Contents for GL6100
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