RG2i adeunis ARF868 Guide Utilisateur page 52

ARF868 Radio Modems - Guide utilisateur / User guide version V2.2.3
Another possibility for entering the command mode is to activate the BP1/BP2 sequence on the back of the modem and as described in §1.8
Service interface. This procedure can be used if the command mode entry code has been changed or lost.
The ATO command enables us to quit the command mode and return to the communication mode.
It should be noted that exiting from the command mode is also possible automatically (time-out) by programming register S202 (see
§ 5.3 Description of registers).
Command Description
FR
+++ Allows entry into command mode
ATO Exit command mode
5.2. AT Command
EN
A command starts with the two ASCII characters: "AT", followed by one or more characters and data (see C below for the syntax of AT com-
mands available on the modem).
Each command should end with a "CR" or "CR" "LF", the two possibilities are accepted. (CR signifies: Carriage Return, LF signifies: Line Feed)
On receipt of a command the modem returns:
• "the data"<cr><lf>, for a reading command, type ATS<n> ? , AT/S or AT/V.
• "O" <cr><lf>, for all other types of commands if it is accepted.
• "E" <cr><lf>, if it refuses the command because of a syntax error, unknown command, unknown register, invalid parameter, etc.
• "W"<cr><lf>, if it refuses the command because the configuration requested is not authorised.
• "CM" <cr><lf>, if it accepts entry into the command mode
Table of AT commands:
Command Description
ATS<n> ? Returns the contents of register n
ATS<n>=<m> Transfer the value m to register n
AT/S Display as a list, the content of each User register
AT/V Display the firmware version
ATR Restore the content of registers with default values.
This command must be followed by an AT&W
command and a module reset to ensure that all
parameters have been applied.
ATT00 Enables test mode: Sends a predefined frame (see
note1).
Exit test mode ATT00 : ESC (0x1B)
ATT01 Enables test mode: Reception and control
frames received in opposite to ATT00 (see note1).
Exit test mode ATT01: ESC (0x1B)
ATT02 Starts the Scan Free mode
ATT03 <c> <t> Scan of channel «c», during a «t» period , with :
-
-
ATX3 Automatic registers programming for X3Pro modems
compatibility :
-
-
-
-
Other registers to their default values.
AT&W Save the register configuration in E2PROM.
<c> value on three digits.
<t> value from 1 to 999, by step of 1s
S210 = 3 -> 9600 baud
S215 = 1 -> RS232
S220 = 1 -> Addressed
S252 = 0 -> Source address = 0
Answer
« CM » to confirm entry in command mode.
«O»<cr> if operation OK
«E»<cr> if error
Reply
Sn=y where y represents the contents of register n
«O»<cr> if operation OK
«E»<cr> if error
« W» if the operation has a configuration problem.
Sxxx=y<cr><lf> for each register
Example : TW_AB_2.3.00_AA_B_1.2.0
«O»<cr> if operation OK
«E»<cr> if error
«O»<cr> if operation OK
«E»<cr> if error
«O»<cr> if operation OK
«E»<cr> if error
«Returns for each channel, its number and RSSI value associated :
Cxxx=-090dBm<cr><lf>
The command returns three values of RSSI: mini, medium and maximum.
«O»<cr> if operation OK
«E»<cr> if error
«O»<cr> if operation OK
«E»<cr> if error
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