Fh (Force Wake-Up Initializer) Command; Fl (Software Flow Control) Command; Fs (Forced Sync Time) Command - Digi XTend User Manual

AT Command: ATER
Binary Command: 0x0F (15 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: GD (Receive Good Count)

FH (Force Wake-up Initializer) Command

<Sleep (Low Power)> The FH command is used to force a Wake-up Initializer to be sent on the next transmission. Use
only with cyclic sleep modes active on remote modules.
ATFH will not send a long header if ATHT = 0xFFFF. WR (Write) Command does not need to be issued with FH
Command.
AT Command: ATFH
Binary Command: 0x0D (13 decimal)

FL (Software Flow Control) Command

<Serial Interfacing> The FL command is used to configure software flow control. Hardware flow control is
implemented with the module as the GP01 pin (CTS pin of the OEM RF module), which regulates when serial data can
be transferred to the module.
FL Command can be used to allow software flow control to also be enabled. The XON character used is 0x11 (17
decimal). The XOFF character used is 0x13 (19 decimal)
AT Command: ATFL
Binary Command: 0x07 (7 decimal)
Parameter Range: 0 - 1
Parameter
0
1
Default Parameter Value: 0
Number of bytes returned: 1

FS (Forced Sync Time) Command

<RF Interfacing> The FS command only applies to streaming data. Normally, only the first packet of a continuous
stream contains the full RF initializer. The RF modules then remain synchronized for subsequent packets of the
stream. This parameter can be used to periodically force an RF initializer during such streaming. Any break in UART
XTend RF Module User Guide
Configuration
Disable software flow control
Enable software flow control
Command descriptions
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