DVK-PRM112 Laird Technologies, DVK-PRM112 Datasheet - Page 30

• Manufacturer Part Number: DVK-PRM112
• Description: KIT FOR PRM112
• Manufacturer: Laird Technologies
• Series: FlexRF™r
• Type: Transceiver, FHSSr

Specifications of DVK-PRM112

• Frequency: 2.4GHz
• Output Power: 50 mW
• Antenna: U.FL Coaxial
• Silicon Manufacturer: Laird Technologies
• Kit Application Type: Communication & Networking
• Application Sub Type: RF Module
• Kit Contents: 2x RF Module, 2x Adapter Board, CD, 2x AC Power Adapters, 2x DB9
• Rohs Compliant: Yes
• For Use With/related Products: PRM112
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

LT2510
Wireless Module
CONFIGURING
THE LT2510
27 www.lairdtech.com
UTILITY COMMANDS
Enter AT Command Mode
Prior to sending this command, the OEM Host must
ensure that the transceiver’s serial RX buffer is empty.
This can be accomplished by framing the command with
rest periods equal to the Interface Timeout or greater
(depending on radio configuration). If the buffer is not
empty, the radio might concatenate the string to existing
data in the buffer and it will be sent over the RF.
Exit AT Command Mode
The OEM Host should send this command to exit AT
Command mode and resume normal operation.
Enter Deep Sleep
The OEM Host issues this command to put the module
into a Sleep state to minimize current draw. While
sleeping, the processor has all interfaces disabled
(including RF and serial). Pin states are maintained while
in sleep. A reset of the radio (soft or hard) cancels any
current sleep mode. Two sleep modes are supported in
the module: PM2 and PM3.
PM2: The module can either be awakened by the Sleep
Interrupt pin (Force 9600) going Low or the sleep timer
expiring. When a Server enters PM2, it stops sending
beacons until it awakes. Upon awakening from PM2, a
Client will calculate which frequency the Server should
be located on (based on the duration of the sleep
period) and will attempt to resync with the Server on
that frequency. As such, a Client will not be permitted to
transmit data, following PM2, until receiving a beacon
from its Server. Enabling In Range High on Wake permits
the host to monitor the In Range pin to determine when
the Client has received a beacon from its Server.
PM3: The module can only be awakened by the Sleep
Interrupt pin (Force 9600). The sleep timer is not active in
PM3 and the bytes controlling the timer (RES, Timer_H,
Timer_L) are disregarded and can be omitted from the
command as well.
Sleep Time is calculated according to the following
formula:
Sleep Time = ((RES*TIMER(H&L))/32.768khz
Sleep modes must last for a minimum of 11.08ms.
Firmware History:
v1.0 - v1.1-4:
v1.1-6 - v2.1:
v2.2 - forward:
Reset
The OEM Host issues this command to perform a
soft reset of the transceiver. Any transceiver settings
modified by CC commands will revert to the values
stored in the EEPROM.
Restore Factory Defaults
In firmware v1.7 and forward, the OEM can issue
this command to restore the original factory EEPROM
settings to the module. The Command also issues a reset
as well as restoring the EEPROM. The default EEPROM
will be active following the reset.
Only PM3 supported, command is
<0xCC><0x86><0x03>
PM2 and PM3 supported, command
is <0xCC><0x86><Mode><RES>
<Timer_H><Timer_L>
PM2 and PM3 supported, both prior
commands are supported
Command:
Number of Bytes Returned:
Response:
Command:
Number of Bytes Returned:
Response:
Command:
Number of Bytes Returned:
Response:
Parameter Range:
<Mode> =
<RES> =
<Timer_H/TIMER_L> = 0x0001 - 0xFFFF
Command:
Number of Bytes Returned:
Response:
Command:
Number of Bytes Returned:
Response:
<0xCC> <0x43> <0x4F> <0x4D>
<0xCC> <0x44> <0x41> <0x54>
None
None
None
<0x41> <0x54> <0x2B> <0x2B> <0x2B>
<0x0D>
<0xCC> <0x41> <0x54> <0x4F> <0x0D>
<0xCC> <0x86> <Mode> <RES> <Timer_H>
<Timer_L>
<0xCC> <0xFF>
<0xCC> <0xFF> <0xDF>
0x02 = PM2
0x03 = PM3
0x00 = 2
0x01 = 2
0x02 = 2
0x03 = 2
0
1
2
3
4
4
None
None
0
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