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4. 900/DigiMesh Command Reference Tables
Special
Special Commands
AT
Command
WR
RE
FR
AC
R1
VL
Addressing
Addressing Commands)
AT
Name and Description
Command
Destination Address High. Set/Get the upper 32 bits of the 64-bit destination address.
DH
When combined with DL, it defines the destination address used for transmission.
Destination Address Low. Set/Get the lower 32 bits of the 64-bit destination address.
DL
When combined with DH, DL defines the destination address used for transmission.
Serial Number High. Read high 32 bits of the RF module's unique IEEE 64-bit
SH
address. 64-bit source address is always enabled. This value is read-only and it never
changes
Serial Number Low. Read low 32 bits of the RF module's unique IEEE 64-bit address.
SL
64-bit source address is always enabled . This is read only and it is also the serial
number of the node. .
Node Identifier. Stores a string identifier. The register only accepts printable ASCII
data. In AT Command Mode, a string can not start with a space. A carriage return ends
NI
the command. Command will automatically end when maximum bytes for the string
have been entered. This string is returned as part of the ND (Node Discover) command.
This identifier is also used with the DN (Destination Node) command.
Serial Interfacing (I/O)
Serial Interfacing Commands
AT
Name and Description
Command
API mode. Set or read the API mode of the radio. The following settings are allowed:
0 API mode is off. All UART input and output is raw data and packets are delineated
using the RO and RB parameters.
AP
1 API mode is on. All UART input and output data is packetized in the API format,
without escape sequences.
2 API mode is on with escaped sequences inserted to allow for control characters (XON,
XOFF, escape, and the 0x7e delimiter to be passed as data.
API Output Format. Enables different API output frames. Options include:
AO
0 Standard Data Frames (0x90 for RF rx)
1 Explicit Addressing Data Frames (0x91 for RF rx)
Baud rate. Set or read serial interface rate (speed for data transfer between radio
modem and host). Values from 0-8 select preset standard rates. Values at 0x39 and
above select the actual baud rate. Providing the host supports it. Baud rates can go as
high as 1.875Mbps. The values from 0 to 8 are interpreted as follows:
BD
0 - 1,200bps
1 - 2,400bps
2 - 4,800bps
Packetization Timeout. Set/Read number of character times of inter-character silence
RO
required before packetization. Set (RO=0) to transmit characters as they arrive instead of
buffering them into one RF packet.
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Name and Description
Write. Write parameter values to non-volatile memory so that parameter modifications
persist through subsequent resets.
Note: Once WR is issued, no additional characters should be sent to the module until
after the "OK\r" response is received.
Restore Defaults. Restore module parameters to factory defaults.
Software Reset. Reset module. Responds immediately with an "OK" then performs a
reset 100ms later.
Apply Changes. Immediately applies new settings without exiting command mode.
Restore Compiled. Restore module parameters to compiled defaults.
Version Long. Shows detailed version information including application build date and
time.
3 - 9,600bps
6 - 57,600bps
4 - 19,200bps
7 - 115,200bps
5 - 38,400bps
8 - 230,400bps
© 2008 Digi International, Inc.
Parameter Range Default
--
--
--
--
--
--
Parameter Range
Default
0 to 0xFFFFFFFF
0
0 to 0xFFFFFFFF
0x0000FFFF
0x-0xFFFFFFFF
Factory
0 to 0xFFFFFFFF
Factory
20-Byte printable
Space Character
ASCII string
Parameter Range
Default
0, 1, or 2
0
0, 1
0
0 to 8, and 0x39 to
0x03 (9600
0x1c9c38
bps)
0 - 0xFF
3
[x character times]
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