Installation and Startup
Rev 2 Mar.18
33
41110485
By default, the RS-485 termination resistor is disabled. To enable or disable the
RS-485 termination resistor, use the following Linux command:
./rs485.py /sys/devices/platform/msm_serial_hsl.0/
rs485_term <NEW MODE>
Where
<NEW MODE>
is either:
·
0—RS-485 termination resistor is disabled (drives GPIO63 high; the termi-
nation resistor is active low) (default)
·
1—RS-485 termination resistor is enabled (drives GPIO63 low)
For example, to enable the RS-485 termination resistor:
./rs485.py /sys/
devices/platform/msm_serial_hsl.0/rs485_term 1
To query the termination resistor status, use:
./rs485.py /sys/devices/platform/msm_serial_hsl.0/
rs485_term
which will return either
DISABLED
or
ENABLED
.
To make the rs485.py script executable, use the following command:
chmod a+x rs485.py
Default port settings
Serial:
•
/dev/ttyHSL0
•
115200 8N1
•
No flow control
AT commands:
•
/dev/ttyAT
•
38400 8N1
•
No flow control
USB0 serial:
•
/dev/ttyUSB0
•
9600 8N1
•
No flow control
Note: The FX30S does not support PPP.
Setup for AT Commands
To send AT Commands to the FX30S:
1.
Connect the USB port to the computer.
2.
Install the USB drivers for WP Series modules, available from:
http://source.sierrawireless.com/devices/fx-series/FX30/
(in the Software
section under Windows drivers).
3.
Connect to the virtual COM port named “Sierra Wireless AT Commands
Port”.