VEGA INSYS Modem GPRS 5.0 - Manual (Page 77)

INSYS GPRS 5.0 serial Functions
77
During a CSD or “TCP transparent” data connection, the INSYS
GPRS 5.0 serial can be switched to remote command mode by en-
tering the escape sequence via the data connection from the re-
mote terminal.
Note: After the 4 escape characters were entered at the local de-
vice (1 second pause before and after the entry, no re-
turn - <CR> -), the remote configuration at the remote
terminal is activated. The data connection is main-
tained in the background. The 4 escape characters must
be entered within 1 second.
If this was configured, the configuration password is queried be-
fore the switching to the remote command mode occurs.
Note: See also Chapter
6.1.1
- Password protection
After the escape sequence is detected, the prompt for entering
the password appears.
If no valid password is entered within 30 seconds (attention:
complete the entry with line end character), the configuration
mode will be exited with the following message
A valid password is acknowledged with OK; now the AT com-
mands released for remote configuration can be entered.
Terminate configuration
Note: Due to the sometimes long packet run times for TCP
connections, the escape character **** must be sent in
one
TCP packet. Otherwise the pauses between the in-
dividual characters get too large and the reception of
the sequence is terminated.
<pause>
****
<pause>
CONFIG
PASSWORD:
ERROR
OK
AT**EXIT
6.9 Firmware Update
The firmware of the µcontroller can be loaded locally (via the serial
interface), and remote (CSD or "TCP transparent" connection).
Before the firmware is updated, hardware handshake must
always be activated ((INSYS GPRS 5.0 serial and remote ter-
minal).
The process is started. The device prepares itself for receiving the
new firmware.
After the response, the firmware (file with the ending *.hex) is sent
as a text file.
AT**FLASH
Send *.HEX
file now