AX−SIP−SFEU, AX−SIP−SFEU−API

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15

Table 9. COMMANDS (continued)

Command

Description

Name

AT:DAC=OFF

Turn off SD DAC

Switch off the DAC

AT:DAC?

Get SD DAC

Return the DAC value

AT$TM=mode,config

Activates the Sigfox Testmode Available test modes:

0. TX BPSK

Send only BPSK with Synchro Bit + Synchro frame +

PN sequence: No hopping centered on the TX_frequency. Config

bits 0 to 6 define the number of repetitions. Bit 7 of config defines if

a delay is applied or not between the frames in the loop (1 means no

delay).

1. TX Protocol:

Tx mode with full protocol with Sigfox key: Send Sigfox protocol

frames with initiate downlink flag = True. Config defines the number

of repetitions.

2. RX Protocol:

This mode tests the complete downlink protocol in Downlink only.

Config defines the RX on time in seconds.

3. RX GFSK:

RX mode with known pattern with SB + SF + Pattern on

RX_frequency (internal comparison with received frame ⇔ known

pattern = AA AA B2 27 1F 20 41 84 32 68 C5 BA AE 79 E7 F6 DD

9B. Config defines the number of repetitions.

4. RX Sensitivity:

Does uplink + downlink frame with Sigfox key and specific timings.

This test is specific to Sigfox’s test equipment & software.

5. TX Synthesis:

Does one uplink frame on each Sigfox channel to measure

frequency synthesis step.

AT$SE

Starts

AT$TM=3,255 indefinitely

Convenience command for sensitivity tests

AT$SL[=frame]

Send local loop

Sends a local loop frame with optional payload of 1 to 12 bytes.

Default payload: 0x84, 0x32, 0x68, 0xC5, 0xBA, 0x53, 0xAE, 0x79,

0xE7, 0xF6, 0xDD, 0x9B.

AT$RL

Receive local loop

Starts listening for a local loop.

AT$TP=repetitions

Transient power

measurements mode

Used for transmitter transient power measurements. The command

switches the transmitter ON and OFF. During ON state (pseudo)

random bit pattern is send. Repetitions is the number of performed

measurements, acceptable range is 1−255.

AT$PN=mode,repetitions

Send & Receive PN9

bitstream for BER

measurements

Available modes:

0: send PN9 bit stream. Repetitions = 1 is required to start sending.

Repetitions = 0 stops sending

3: receive PN9 bit stream, calculate BER with 3 digits precision

4: receive PN9 bit stream, calculate BER with 4 digits precision

5: receive PN9 bit stream, calculate BER with 5 digits precision

Mode = 3−5 receives the PN9 bitstream and decodes it into an actual

BER measurement. Reports the BER for each repetition.

Repetitions is the number of performed measurements, acceptable

range is 1−255. Higher precision result takes longer time to compute.

PN9 is 9−bit pseudo random binary sequence.