Command descriptions
9XTend-PKG-R RS-232/485 RF Modem User Guide
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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.
FT (Flow Control Threshold) Command
<Serial Interfacing> The FT command is used to set/read the flow control threshold. When FT bytes have accumulated
in the DI buffer (UART Receive), CTS is de-asserted or the XOFF software flow control character is transmitted.
GD (Receive Good Count) Command
<Diagnostics> The GD command is used to set/read the count of good received RF packets. Its parameter value is
reset to 0 after every reset and is not non-volatile (The parameter value does not persist in the RF modem's memory
after a power-up sequence). Once the "Receive Good Count" reaches its maximum value (up to 0xFFFF), it remains at
its maximum count value until the maximum count value is manually changed or the modem is reset.
The GD parameter is not reset by pin, serial port or cyclic sleep modes.
HP (Hopping Channel) Command
<Networking and Security> The HP command is used to set/read the RF modem's hopping channel number. A
channel is one of three layers of filtration available to the modem.
AT Command: ATFS
Binary Command: 0x3E (62 decimal)
Parameter Range:0 - 0xFFFF [x 10 milliseconds]
Default Parameter Value: 0
Number of bytes returned: 2
AT Command: ATFT
Binary Command: 0x24 (36 decimal)
Parameter Range: 0 - (DI buffer size minus 0x11) [Bytes]
Default Parameter Value: DI Buffer size minus 0x11 (17 decimal)
Number of bytes returned: 2
AT Command: ATGD
Binary Command: 0x10 (16 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: ER (Receive Error Count)