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RB (Packetization Threshold) Command
<Serial Interfacing> The RB command is used to set/read the character threshold value.
RF transmission begins after data is received in the DI Buffer and either of the following criteria is met:
•
RB characters received by the UART
•
RO character times of silence detected on the UART receive lines (after receiving at least 1 Byte of data)
If PK (Max. RF Packet Size) is lowered below the value of RB, RB is automatically lowered to match the PK value. If (RO
= 0), RB bytes must be received before beginning transmission.
Note: RB and RO criteria only apply to the first packet of a multi-packet transmission. If data remains in the DI Buffer
after the first packet, transmissions will continue in a streaming manner until there is no data left in the DI Buffer
(UART receive buffer).
AT Command: ATRB
Binary Command: 0x20 (32 decimal)
Parameter Range:0 - PK parameter value (up to 0x800 Bytes)
Default Parameter Value: 0x800 Bytes
Number of bytes returned: 2
Related Commands: BR (RF Data Rate), PK (RF Packet Size), RO (Packetization Timeout)
RC (Ambient Power - Single Channel) Command
<Diagnostics> The RC command is used to examine and report the power level on a given channel.
Sample output:
-78 dBm [when CF = 0]
4e
-78
AT Command: ATRC
Parameter Range (read-only): 0 - 0x31 [dBm]
Number of bytes returned: 1
Related Commands: RM (Ambient Power - All Channels)
RE (Restore Defaults) Command
<Diagnostics> The RE command is used to restore all configurable parameters to their factory default settings.
The RE Command does not cause default values to be stored to non-volatile (persistent) memory. For the restored
default settings to persist in the module's non-volatile memory and be saved in the event of RF module reset or
power-down, the WR (Write) command must be issued prior to power-down or reset.
AT Command: ATRE
Binary Command: 0x0E (14 decimal)
XTend RF Module User Guide
[when CF = 1]
[when CF = 2]
Command descriptions
47
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