INSYS Modem 56k small EU 2.1
Functions
31
12.2
Automatic Baud Rate Detection
12.2.1
Serial Connection
The automatic baud rate detection enables a continuous automatic adjustment of all
parameters (baud rate, data format) of the serial interface at the INSYS Modem 56k
small EU 2.1. The device will detect during the operation, which baud rate and which
data format is applied to the serial interface. After a restart, the INSYS Modem 56k small
EU 2.1 will restore the last working interface configuration. With each incoming AT
command (according to the character string "AT"), the parameters for the interface of
the INSYS Modem 56k small EU 2.1 will be checked and adjusted, if necessary. This is the
reason why
the baud rate can not be stored with the command
AT&W
, as the INSYS Mo-
dem 56k small EU 2.1 will immediately adjust its interface to the current parameters of
the currently established serial connection.
The function is active as default.
Configuration with HSComm
A configuration using HSComm is not possible, because the automatic baud
rate detection will re-adjust the baud rate of the serial interface at the INSYS
Modem 56k small EU 2.1 immediately after each further "AT". As the software
sends several commands, entering an AT command to temporarily change the
baud rate in the field "Initialization string" will at best be ineffective. It can
also result in errors during the transmission of the settings from the software
to the INSYS Modem 56k small EU 2.1.
Configuration with AT commands
To set the baud rates
temporarily
(until the
next "AT"), enter one of the following baud
rates for
<n>:
300, 600, 1200, 2400, 4800, 9600, 14400,
19200, 28800, 38400, 57600 or 115200 bps.
This setting can not be stored.
AT+IPR=<n>
The INSYS Modem 56k small EU 2.1 must be configured with the baud rate,
which is used to operate the application at a later time, as the INSYS Modem
56k small EU 2.1 will always use the last known functioning configuration of
its interface.
