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ARF868 Radio Modems - Guide utilisateur / User guide version V2.2.2
Syntax of the Command
+++
ATS254=3
ATS200=9
ATS200=527
ATS231=0
FR
ATS200 ?
ATS231 ?
AT&W
ATO
EN
Interpretation of the above example: the user wished to save a new radio configuration (channel 527, power 27dBm) after having made a
parameter error (reply E) and an unauthorised configuration request (reply W). The modem allows neither the saving of this invalid configuration
nor the use of the product in the communication mode.
5.3. Description of registers
When switching on the ARF868 modem operates according to the last configuration saved (factory configuration if its the first switching on, or
if this configuration has not been changed).
Modification commands, type ATS<n>=<m> or ATR allow the content of registers to be modified. The product is usable with each new
configuration as long as it is not disconnected.
On the other hand the modified values will be applied next time the modem is switched on only if they have been saved AT&W command
List of the registers accessible on the ARF868 modem:
Register
S200
S202
1 : Automatic programmanle output from 1 to 65565 sec.
S204
X: Alternative settings for legacy X3-PRO mode
S210
S211
Description
Request for entry into command mode
Request for RF data rate at 9.6kbps
Request for channel selection = 9
Request for channel selection = 527
Request for RF power at 27dBm
Returns S200 register value
Returns S231 register value
Storage request of the registers status
Request to exit command mode
Content
Channel number : 11 and from 13 to 571
Timeout to exit command mode :
0 : no timeout, exit through ATO or AT&RST
Duration of the preamble:
0: Nominal setting
UART data rate:
0 : Autobaud
1 : 2.4 kbps
2 : 4.8 kbps
3 : 9.6 kbps
4 : 19.2 kbps
5 : 38.4 kbps
6 : 57.6 kbps
7 : 115.2kbps
8 : 1.2kbps
UART data lenght :
0 : 7 Bits
1 : 8 Bits
Syntax of the response to the next line
CM
O
E -> invalid channel !
O
O
S200=527
S231=0
W (the selected channel is not available at 9.6kbps RF data rate)
The value storage will not be performed.
W (the selected channel is not available at 9.6kbps RF data rate)
The Exit will not be performed.
Default value
Some channels will not be available depending on the data
rate and the selected power.
The modem will return an error message
11
Instructs the user to configure the modem according to the
possibilities described in Appendix 1
0
The choice 0 is the optimum setting. For other settings,
0
See document: Application note ARF868 Legacy X3-PRO
The other parameters of the serial interface are :
3
•
1
Comments
if illegal choice.
See note 4
contact adeunis®
mode
See note 1 & note 3
•
1 stop bit -> fixed
•
Parity -> See S212
Data lenght -> Voir S211
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