9XTend™
OEM
RF
Module
–
Product
Manual
v1.2.4
©
2005
MaxStream,
Inc.
Confidential
&
Proprietary
23
ER (Receive Error Count) Command
<Diagnostics> Set/Read the number of receive-
errors. The error count records the number of
packets partially received then aborted on a
reception error. This value returns to 0 after a
reset and is not non-volatile (Value does not
persist in the module’s memory after a power-up
sequence). Once the Receive Error Count reaches
its maximum value (up to 0xFFFF), it remains at
its maximum count value until the maximum count value is explicitly changed or the module is
reset.
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)
The ER parameter is not reset by pin, serial port or cyclic sleep modes.
FH (Force Wake-up Initializer) Command
AT Command: ATFH
Binary Command: 0x0D (13 decimal)
<Sleep (Low Power)> FH Command is used to
force a Wake-up Initializer to be sent on the next
transmission. WR (Write) Command does not
need to be issued with FH Command.
Use only with cyclic sleep modes active on remote modules.
FL (Software Flow Control) Command
AT Command: ATFL
Binary Command: 0x07 (7 decimal)
Parameter Range: 0 – 1
Parameter
Value
Configuration
0
Disable software
flow control
1
Enable software
flow control
Default Parameter Value: 0
Number of bytes returned: 1
<Serial Interfacing> FL Command is used to
configure software flow control. Hardware flow
control is implemented with the XTend Module as
the GP01 pin (pin 9,
), 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. XON character used is
0x11 (17 decimal). XOFF character used is 0x13
(19 decimal).
FS (Forced Synch Time) Command
<RF Interfacing> FS Command only applies to
streaming data. Normally, only the first packet of
a continuous stream has the full RF initializer.
The 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 character reception long enough to drain
the DI Buffer (UART receive buffer) and cause a pause in RF data transmission will also cause an
RF initializer to be inserted on the next transmission.
AT Command: ATFS
Binary Command: 0x3E (62 decimal)
Parameter Range: 0 – 0xFFFF
[x
10
milliseconds]
Default Parameter Value: 0
Number of bytes returned: 2
