Using Flash To Upgrade Modem Firmware - Multitech MULTIMODEM MT5600ZDX Owner's Manual

MT5600ZDX Owner's Manual
3. Enter L to list all the files in the selected file areas. Enter C to go
forward in the file list and P to go back.
4. To mark one or more files for download, type M, press ENTER,
type the list numbers of the files, and press ENTER again.
5. Enter D. You will see a list of the files you have marked. Enter E if
you would like to edit the list; otherwise enter D again to start the
download process.
6. Select a file transfer protocol by typing the indicated letter, such
as Z for Zmodem (the recommended protocol).
7. If you select Zmodem, the file will transfer automatically. If you
select another protocol, you may have to initiate the transfer
yourself. (In most data communications programs, the PAGE
DOWN key initiates the download.)
8. When the download is complete, press ENTER to return to the
File Menu.
9. To exit the BBS, type G and press ENTER.

Using Flash to Upgrade Modem Firmware

The linear flash memory downloader in the modem firmware allows
flash memory connected to the modem external memory bus to be
upgraded with revised modem firmware. This process transfers
(uploads) the upgraded modem firmware (data) from the host
computer to the modem which transfers (downloads) the data to the
flash memory device. Note that this downloader function must be
provided in modem MCU firmware initially installed in external flash
memory, i.e., the downloader does not support the programming of
blank flash memory. Programming the flash memory device is a two-
step process:
A. When the AT** command is issued, the modem firmware boot
loader is invoked and you will first load a flash load module (FLM)
into the modem's RAM. The FLM contains the programming
algorithm for the flash memory device being programmed and any
messages that may be sent during the load process.
B. Load the new modem firmware which the FLM will then program
into the flash memory device.
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