AX-SIGFOX Datasheet, PDF (20/30 Pages) ON Semiconductor – Ultra-Low Power Microcontroller

20 Command Interface
Command
AT$CW=
uint,bit
[,uint_opt]
AT$CB=
uint_opt,bit
Name
Description
Continuous wave
Test mode:
TX constant byte
To run emission tests for Sigfox certification it is necessary to send
a continuous wave, i.e. just the base frequency without any
modulation.
Parameters:
Name
Range
Description
Default
frequency
800000000 –
999999999, 0
Continuous wave
frequency in Hz. Use
868130000 for Sigfox
or 0 to keep previous
frequency.
mode
0, 1
Enable or disable
carrier wave.
power
0-14
dBm of signal
14
For emission testing it is useful to send a specific bit pattern. The
first parameter specifies the byte to send. Use ‘-1’ for a (pseudo-)
random pattern.
Parameters:
Name
Range
Description
Default
pattern
0-255, -1
Byte to send. Use ‘-1’
for a (pseudo-)
random pattern
mode
0, 1
Enable or disable
pattern test mode.
AT$T?
AT$V?
Get temperature
Get voltages
Measure internal temperature and return it in 1/10^th of a degree
Celsius.
Return current voltage and voltage measured during the last
transmission in mV.
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