DekTec DTM-3200 IP-ASI Converter - Manual (Page 24)

DTM-3200 – OEM Ethernet TSoIP Converter
User Manual
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 The 0.0.0.0 IP address behavior mentioned before still applies, but the 'DHCP enable' setting
can now be used to turn on and turn off the DHCP client.
- When 1 is written to 'DHCP enabled', the IP address is set to 0.0.0.0 and (after a reboot)
the DHCP client will start looking for a DHCP server to acquire an IP address.
- When 0 is written to 'DHCP enabled', the DTM-3200 retrieves the most recently manually
entered IP-address (fixed IP) and uses this address as its fixed IP-address (after a reboot).
 When a fixed IP-address has never been entered before, writing 0 to 'DHCP enabled' will
cause the DTM-3200 to use a hardcoded factory default address (192.168.144.120 /
255.255.255.0) as its fixed IP address (after a reboot). Naturally this default IP address,
selected by writing 0 to 'DHCP enabled', can be overridden by entering an IP address
manually.
The DTM-3200 must be rebooted before a new IP-address assignment takes effect. Rebooting the
device is initiated by writing 1 to the ‘Reboot’ setting, or by a power cycle.
4.4.5 Firmware update
To upgrade the DTM-3200, the new firmware has to be uploaded in “file parts”. The firmware-
update settings are used to upload the firmware file and control the programming process.
Manageable Items - Category 0x80 – Firmware update
Nr Variable Description Access Type
0x01 Part number Sequence number of most recently
uploaded file part
RO int16
0x02 File part Data in file part; return message
contains the file-part sequence number
R/W 1..1024
bytes
0x03 Update device 1 = Start device update and reboot WO int8
0x04 Abort 1 = Remove uploaded file WO int8
0x05 Progress Programming progress (%) RO int8
0x06 Error Error code (0 = no error, 1 = error) RO int8
0x07 Number of parts
Number of parts to upload the entire
firmware file
R/W int16
0x08 Part size Number of bytes per file part R/W int16
0x09 Remaining Number of bytes in the final file part R/W int16
This category requires an index to be sent with each command. For the “File part” setting, index
should be the file part number. For the other settings, index is not used.
For communication through I
2 C the parts may contain at most 250 data-bytes; For communication
through RS-XXX the parts may contain at most 1024 data bytes.
For firmware version 1.3 and lower, each data byte was sent as 2 ASCII characters (1 character per
nibble, using 0..9 and A..F), so 1024 data bytes were sent as 2048 ASCII characters.
To improve the firmware update speed this was changed into a different encoding.