MTX2 Datasheet, PDF (7/10 Pages) Radiometrix Ltd – UHF Narrow Band FM sub-miniature transmitter

Sequential table operations
Commands
@PRG_0001zzzz <cr>
Function
program zzzz as the sequential table step size
@PRG_BURN_CHC <cr>
sets the current frequency coefficients as the sequential table start
frequency and programs this, and the step size, into eeprom
@PRG_000000 cc <cr>
@PRG_0000FF cc <cr>
@PRG_0000AA nn <cr>
set cc as sequential channel number
set cc as above AND program it into eeprom
set a maximum channel limit (nn) for the table
Setting channel to zero disables sequential table operation
Serial port on/off commands
Commands
@PRG_POWER 00<cr>
@PRG_POWER FF<cr>
@PRG_00000000 <cr>
Function
will turn the unit completely off
(this command does NOT also zero the power setting variable)
Unit is turned back on
(or by cycling the EN pin)
If the unit is in "software off" it will still decode valid commands (although
an invalid string will be interpreted as an EN pin cycle, and the unit will
turn on).
The parallel port will also be read, although not acted upon until the unit is
re-activated
will cause the unit to re-set itself to the values currently stored in eeprom
(just like what happens at power-up). This also zeros the stored serial
channel and does a parallel channel read
Note: The characters in a command string must not be separated by more than 5mS, but a pause of at
least 10mS is required between commands (more following a BURN_ROM command a much longer
idle period, of 50mS at least, is needed)
The complete list of the MTX2 commands
Commands
@PRG_iiffffff <cr>
@PRG_0001zzzz <cr>
@PRG_00000000 <cr>
@PRG_000000cc <cr>
@PRG_0000FFcc <cr>
@PRG_0000AAnn <cr>
@PRG_BURN_CH0 <cr>
@PRG_BURN_CH1 <cr>
@PRG_BURN_CH2 <cr>
@PRG_BURN_CH3 <cr>
@PRG_BURN_CHF <cr>
@PRG_BURN_CHC <cr>
Function
sets the current operating frequency (in RAM)
(ii is never zero, ffffff is in the range 080000 - 0FFFFF)
will program zzzz as the sequential table step size
eeprom values to RAM (cold start-up) and channel = 0
will set cc as sequential channel number (in RAM)
will set cc as above AND program it into eeprom
will set (nn) as maximum channel limit for the table and program it into
eeprom
write current frequency into channel 0 eeprom
write current frequency into channel 1 eeprom
write current frequency into channel 2 eeprom
write current frequency into channel 3 eeprom
write band, power and offset into eeprom
set table start to current frequency AND write both this and the current
step size values to eeprom
@PRG_POWER pp <cr>
@PRG_TRIM+ aa <cr>
@PRG_TRIM- aa <cr>
@PRG_BAND# bb <cr>
@PRG_POWER 00 <cr>
@PRG_POWER FF <cr>
sets power variable
set a positive frequency trim offset
set a negative frequency trim offset
set band divider code (bb is O8,0A,0B or 0D)
turn unit off
turn unit back on
Radiometrix Ltd
MTX2 Data Sheet
page 7