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AX-SF10-MINI21-868-B1

P1-P3P4-P6P7-P9P10-P12P13-P13
AX−SIGFOX−MODS
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10
The ‘CB’ command sends out a continuous pattern of bits,
in this case 0xAA = 0b10101010:
AT$CB=0xAA,1
OK
This transitions the device into sleep mode. Out−of−band
transmissions will still be triggered. The UART is powered
down. The module can be woken up by a low level on the
UART signal, i.e. by sending break.
AT$P=1
OK
Table 7. COMMANDS
Command Name Description
AT Dummy Command Just returns ‘OK’ and does nothing else. Can be used to check
communication.
AT$SB=bit[,bit] Send Bit Send a bit status (0 or 1). Optional bit flag indicates if AX−SIGFOX
module should receive a downlink frame.
AT$SF=frame[,bit] Send Frame Send payload data, 1 to 12 bytes. Optional bit flag indicates if
AX−SIGFOX module should receive a downlink frame.
AT$SO Manually send out of band
message
Send the out−of−band message.
ATSuint? Get Register Query a specific configuration register’s value. See chapter
“Registers” for a list of registers.
ATSuint=uint Set Register Change a configuration register.
AT$IF=uint Set TX Frequency Set the output carrier macro channel for Sigfox frames.
AT$IF? Get TX Frequency Get the currently chosen TX frequency.
AT$DR=uint Set RX Frequency Set the reception carrier macro channel for Sigfox frames.
AT$CW=uint,bit[,uint_opt] Continuous Wave To run emission tests for Sigfox certification it is necessary to send a
continuous wave, i.e. just the base frequency without any modula-
tion. Parameters:
Name Range Description
Frequency 800000000− Continuous wave frequency in Hz.
999999999, 0 Use 868130000 for Sigfox or 0 to
keep previous frequency.
Mode 0, 1 Enable or disable carrier wave.
Power 0−14 dBm of signal | Default: 14
AT$CB=uint_opt,bit Test Mode: TX constant byte 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 Decsription
Pattern 0−255, −1 Byte to send. Use ‘−1’ for a
(pseudo−)random pattern.
Mode 0, 1 Enable or disable pattern test mode.
AT$T? Get Temperature Measure internal temperature and return it in 1/10
th
of a degree
Celsius.
AT$V? Get Voltages Return current voltage and voltage measured during the last
transmission in mV.
AX−SIGFOX−MODS
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11
Table 7. COMMANDS
Command DescriptionName
AT$I=uint Information Display various product information:
0: Software Name & Version
Example Response: AX−Sigfox 1.0.6−ETSI
1: Contact Details
Example Response: support@axsem.com
2: Silicon revision lower byte
Example Response: 8F
3: Silicon revision upper byte
Example Response: 00
4: Major Firmware Version
Example Response: 1
5: Minor Firmware Version
Example Response: 0
6: Firmware Revision
Example Response: 3
7: Firmware Variant (Frequency Band etc. (EU/US))
Example Response: ETSI
8: Firmware VCS Version
Example Response: v1.0.2−36
9: SIGFOX Library Version
Example Response: DL0−1.4
10: Device ID
Example Response: 00012345
11: PAC
Example Response: 0123456789ABCDEF
AT$P=uint Set Power Mode To conserve power, the AX−SIGFOX module can be put to sleep
manually. Depending on power mode, you will be responsible for
waking up the AX−SIGFOX module again!
0: software reset (settings will be reset to values in flash)
1: sleep (send a break to wake up)
2: deep sleep (toggle GPIO9 or RESET_N pin to wake up;
the AX−SIGFOX module is not running and all settings will be reset!)
AT$WR Save Config Write all settings to flash (RX/TX frequencies, registers) so that they
survive reset/deep sleep or loss of power.
Use AT$P=0 to reset the AX−SIGFOX module and load settings from
flash.
AT:Pn? Get GPIO Pin Return the setting of the GPIO Pin n; n can range from 0 to 9.
A character string is returned describing the mode of the pin, fol-
lowed by the actual value. If the pin is configured as analog pin, then
the voltage (range 0…1 V) is returned. The mode characters have
the following meaning:
Mode Description
0 Pin drives low
1 Pin drives high
Z Pin is high impedance input
U Pin is input with pull−up
A Pin is analog input (GPIO pin 0…3 only)
T Pin is driven by clock or DAC (GPIO pin 0 and 4 only)
The default mode after exiting reset is U on all GPIO pins.
AT:Pn=? Get GPIO Pin Range Print a list of possible modes for a pin. The table below lists the
response.
Pin Modes
P0 0, 1, Z, U, A, T
P1 0, 1, Z, U, A
P2 0, 1, Z, U, A
P3 0, 1, Z, U, A
P4 0, 1, Z, U, T
P5 0, 1, Z, U
P6 0, 1, Z, U
P7 0, 1, Z, U
P8 0, 1, Z, U
P9 0, 1, Z, U
AX−SIGFOX−MODS
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12
Table 7. COMMANDS
Command DescriptionName
AT:Pn=mode Set GPIO Pin Set the GPIO pin mode.
For a list of the modes see the command AT:Pn?
AT:ADC Pn[−Pn[(1V|10V)]]? Get GPIO Pin Analog Voltage Measure the voltage applied to a GPIO pin. The command also
allows measurement of the voltage difference across two GPIO pins.
In differential mode, the full scale range may also be specified as 1 V
or 10 V. Note however that the pin input voltages must not exceed
the range 0..VDD. The command returns the result as fraction of the
full scale range (1 V if none is specified). The GPIO pins
referenced should be initialized to analog mode before issuing this
command.
AT:SPI[(A|B|C|D)]=bytes SPI Transaction This command clocks out bytes on the SPI port. The clock frequency
is 312.5 kHz. The command returns the bytes read on MISO during out-
put. Optionally the clocking mode may be specified (default is A):
Mode Clock Inversion Clock Phase
A normal normal
B normal alternate
C inverted normal
D inverted alternate
Note that SEL, if needed, is not generated by this command,
and must instead be driven using standard GPIO commands
(AT:Pn=0|1).
AT:CLK=freq,reffreq Set Clock Generator Output a square wave on the pin(s) set to T mode. The frequency of
the square wave is (freq / 2
16
) × reffreq. Possible values for reffreq
are 20000000, 10000000, 5000000, 2500000, 1250000, 625000,
312500, 156250. Possible values if freq are 0…65535.
AT:CLK=OFF Turn off Clock Generator Switch off the clock generator
AT:CLK? Get Clock Generator Return the settings of the clock generator. Two numbers are
returned, freq and reffreq.
AT:DAC=value
Set SD DAC Output a SD DAC value on the pin(s) set to T mode. Parameter
value may be in the range −32768…32767. The average output
voltage is (1/2 + value / 2
17
) × VDD.
An external low pass filter is needed to get smooth output voltages.
The modulation frequency is 20 MHz. A possible low pass filter
choice is a simple RC low pass filter with R = 10 kW and C = 1 mF.
AT:DAC=OFF
Turn off SD DAC
Switch off the DAC
AT:DAC?
Get SD DAC
Return the DAC value
Table 8. REGISTERS
Number Name Description Default Range Units
300 Out Of Band
Period
AX−SIGFOX module sends periodic
static messages to indicate that they
are alive. Set to 0 to disable.
24 0−24 hours
302 Power Level The output power of the radio. 14 0−14 dBm
P1-P3P4-P6P7-P9P10-P12P13-P13

AX-SF10-MINI21-868-B1

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Manufacturer:
ON Semiconductor
Description:
Zigbee Modules (802.15.4) MINI STAMP SIGFOX
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