AX−SFEU, AX−SFEU−API

www.onsemi.com

15

Table 10. COMMANDS

Command

Description

Name

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. Setting bit 7 to

1 removes the delay between frames.

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 number of repetitions.

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 RX on time in seconds.

4. RX Sensitivity:

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

This test is specific to SIGFOX’s test equipments & softwares.

5. TX Synthesis:

Does one uplink frame on each Sigfox channel to measure

frequency synthesis step.

AT$PN=mode,rep

(Note 3)

Send & Receive PN9 bitstream

for BER measurements

Available modes:

TX:

0, 1: start sending PN9 bit stream

0, 0: stop sending PN9 bit stream

RX:

3, rep: 3 digits BER precision

4, rep: 4 digits BER precision

5, rep: 5 digits BER precision (slow!)

Mode = 3−5 receive a PN9 bitstream and decodes it into a BER

measurement. Reports BER on UART for each repetition.Rep is the

number of measurements performed, valid range is 1−255.

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

(Note 3)

Transient power measurement

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.

3. This command is available only in AX−SFEU−1−03 and later.