XStream
‐
PKG
‐
T™
Telephone
RF
Modem
–
Product
Manual
v5.x00
[2006.02.24]
RF Module Commands (Long Descriptions)
Commands in this section are listed alphabetically. Command categories are designated between
the “< >” symbols that follow each command title. XStream Modules expect numerical values in
hexadecimal. Hexadecimal values are designated by a “0x” prefix.
AM (Auto-set MY) Command
<Networking> AM Command is used to
automatically set the MY (Source Address)
parameter from the factory-set module serial
number. The address is formed with bits 29, 28
and 13-0 of the serial number (in that order).
The value is displayed as a result of this
command.
AT Command: ATAM
Binary Command: 0x3A (58 decimal)
Parameter Range: 0 – 0xFFFF
Minimum Firmware Version Required: 4.30
AT (Guard Time After) Command
<AT Command Mode Options> AT Command is
used to set/read the time-of-silence that follows
the command sequence character (CC
Command). By default, AT Command Mode will
activate after one second of silence.
AT Command: ATAT
Binary Command: 0x05 (5 decimal)
Parameter Range: 0 – 0xFFFF
©
2006
MaxStream,
Inc.,
Confidential
and
Proprietary
45
The default AT Command Mode Sequence used to
enter AT Command Mode is as follows:
•
No characters sent for 1 second [BT (Guard
Time Before) Command]
•
Send three plus characters “---”
[CC (Command Sequence Character) Command]
[x
100
milliseconds]
Number of bytes returned: 2
Default Parameter Value: 0x0A (10 decimal)
Related Commands: BT (Guard Time Before),
CC (Command Sequence Character)
•
No characters sent for 1 second [AT (Guard Time After) Command]
All of the values in this sequence can be adjusted. AT Command is used to adjust the period of
silence that follows the command sequence character.
Fast AT Command Mode Entry.
Set AT and BT parameters to 0 for 0.6 second guard times.
Beware that this will also mean that AT Command Mode cannot be entered by manually typing
the AT command sequence characters (“---” by default) because the BT timeout will occur faster
than the characters can be typed.
BD (Interface Data Rate) Command
AT Command: ATBD
Binary Command: 0x15 (21 decimal)
Parameter Range: 0 – 6
Parameter
<Serial Interfacing> BD Command is used to
set/read the UART I/O serial data rate (the rate at
which serial data is sent to the module). The new
baud rate does not take effect until the CN (Exit
AT Command Mode) Command is issued.
BAUD (bps)
The RF data rate is not affected by the BD
Command.
Note: If the serial data rate is set to exceed the
fixed RF data rate of the XStream module,
flow control may need to be implemented as
described in the “Pin Signals” and “Flow Control”
sections of this manual.
Non-standard Interface Data Rates:
When
parameter values outside the range of standard
baud rates are sent, the closest interface data
rate represented by the number is stored in the
BD register. For example, a rate of 19200 bps can be set by sending the following command line
"ATBD4B00". NOTE: When using MaxStream’s X-CTU Software, non-standard interface data rates
can only be set and read using the X-CTU ‘Terminal’ tab. Non-standard rates are not accessible
through the ‘Modem Configuration’ tab.
Configuration
0 1200
1 2400
2 4800
3 9600
4 19200
5 38400
6 57600
Number of bytes returned: 1
Default Parameter Value: Equal to module’s
fixed RF data rate.
