XT09-MI Digi International/Maxstream, XT09-MI Datasheet - Page 19

• Manufacturer Part Number: XT09-MI
• Description: MODULE RF 900MHZ 1W 115K W/MMCX
• Manufacturer: Digi International/Maxstream

Specifications of XT09-MI

• Frequency: 900MHz
• Modulation Or Protocol: FHSS, FSK
• Power - Output: 1W
• Sensitivity: -100dBm
• Voltage - Supply: 2.8 V ~ 5.5 V
• Current - Receiving: 80mA
• Antenna Connector: MMCX
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS non-compliant
• Applications: -
• Memory Size: -
• Data Interface: -
• Data Rate - Maximum: -
• Current - Transmitting: -

3. RF Module Configuration
Note: Do not send com‐
mands to the module
during flash program‐
ming (when parameters
are being written to the
module registry).
Wait for the ʺOKʺ sys‐
tem response that fol‐
lows the ATWR
command before enter‐
ing the next command
or use flow control.
3.1. Programming Examples
3.1.1. AT Commands
3.1.2. Binary Commands
Refer to the ‘Command Mode’ section [p17] for information regarding entrance into Command
Mode, sending AT commands and exiting Command Mode. Refer to the ‘X-CTU’ section [p69] of
the ‘Development Guide’ for more information regarding MaxStream’s configuration software.
To Send AT Commands (Using the ‘Terminal’ tab of the X-CTU Software)
Note: When using X-CTU Software to program a module, PC com port settings must match the baud
(interface data rate), parity & stop bits parameter settings of the module. Use the 'Com Port Setup'
section of the “PC Settings” tab to configure PC com port settings to match those of the module.
To Send Binary Commands:
Note: CTS (pin 9) is high when a command is being executed. Hardware flow control must be disabled
as CTS will hold off parameter bytes.
Example: Utilize the 'Terminal' tab of the X-CTU Software to change the module's DT (Destina-
tion Address) parameter and save the new address to non-volatile memory. This example
requires the installation of MaxStream’s X-CTU Software and a serial connection to a PC.
Select the ‘Terminal’ tab of the X-CTU Software and enter the following command lines:
Method 1 (One line per command)
Method 2 (Multiple commands on one line)
Example: Use binary commands to change the RF module's destination address to 0x1A0D and
save the new address to non-volatile memory.
1.
2.
3.
4.
© 2007 MaxStream, Inc.
RT Command must be set to '1' in AT Command Mode to enable binary programming.
Assert CMD (Pin 10 is driven high). (Enter Binary Command Mode)
Send Bytes [parameter bytes must be 2 bytes long]:
De-assert CMD (pin 10 is driven low). (Exit Binary Command Mode)
Send AT Command
+++
ATDT <Enter>
ATDT1A0D <Enter>
ATWR <Enter>
ATCN <Enter>
Send AT Command
+++
ATDT <Enter>
ATDT1A0D,WR,CN <Enter>
00
0D
1A
08
(Send DT (Destination Address) Command)
(Least significant byte of parameter bytes)
(Most significant byte of parameter bytes)
(Send WR (Write) Command)
System Response
OK <CR> (Enter into Command Mode)
{current value} <CR> (Read Destination Address)
OK <CR> (Modify Destination Address)
OK <CR> (Write to non-volatile memory)
OK <CR> (Exit Command Mode)
System Response
OK <CR> (Enter into Command Mode)
{current value} <CR> (Read Destination Address)
OK <CR> (Execute commands)
19