W&T 58620, Manual

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77
W&T
Appendix
Subject to error and alteration
A2.2 Update des AT-Kommando-Interpreters
The update of the command interpreter can be done through
the serial port or over the network.
A2.2.1 ... via the serial interface
For this the LAN-Modem must have a serial connection to a ter-
minal program whose transmission parameters are configured
as follows:
Baud rate: same as the LAN-Modem
Data format: 8 data bits, no parity, 1 stop bit
Handshake: RTS/CTS (required)
The command AT** is used to place the LAN-Modem in serial
update mode, which is acknowledged with the following
message:
MB90F562 bootloader v1.x W&T xx/xxxx
Invoked by software, ESC to cancel
Waiting (Port 0)...
1
The update mode is protected with a timeout of 30s. If no
data are transmitted within this time, the LAN-Modem
automatically resumes normal operating mode.
The function Send text file of the terminal program can now be
used to sent the mhx -file with the current firmware. The LAN-
Modem sends a continuous byte counter during the
transmission and returns the message
OK after successful
completion of the update. The new firmware version can now
be checked using the command
AT13 .
1
You cannot use the binary data transmission function
offered by terminal programs, since this uses additional
protocols such as ZModem or Kermit .