Synxcom SM9234D, User Manual

Page: 58 / 216

AT Commands
Page 58
function properly. In the instance that there is a failure during the download or
upload process, the modem will be in a “flash rescue mode”. In this mode, the
modem will respond “OK” to all AT commands, but will only take action on the
AT** command, so a new attempt to upload or download can be initiated. When
the modem is in the “flash rescue mode” it will only be able to respond to AT
commands if the DTE rate has not been changed since the last AT** command
was successfully issued, even if the modem is powered off and on.
DTE-Modem Interface Commands
The parameters defined in this section control the operation of the interface
between the DTE and modem.
E - Command Echo
The modem enables or disables the echo of characters to the DTE. The parameter
value, if valid, is written to S14 bit 1.
Syntax E<value>
Defined Values
<value> Decimal number corresponding to the option.
0 Disables command echo.
1 Enables command echo. (Default.)
Result Codes
OK <value> = 0 or 1
ERROR Otherwise.
Q - Quiet Results Codes Control
The command enables or disables the sending of result codes to the DTE. The
parameter value, if valid, is written to S14 bit 2.
Syntax Q<value>
Defined Values
<value> Decimal number corresponding to the option.
0 Enables result codes to the DTE. (Default.)
1 Disables result codes to the DTE.
Result Codes
OK <value> = 0 or 1
ERROR Otherwise.
V - Result Code Form
This command selects the sending of short-form or long-form result codes to the
DTE. The parameter, if valid, is written to S14 bit 3.
Syntax V<value>
Defined Values
<value> Decimal number corresponding to the option.