Multi-Tech Systems MT5600SMI-P34, MT5600SMI-XL34 manual Upload Messages, Message Description

Chapter 5 – AT Commands, S-Registers, and Result Codes

7.After the FLM has been loaded, if uploading new firmware to the modem, perform an XMODEM upload of the new modem firmware hex file (e.g., 206s4712.S37) from the host computer to the modem RAM using industry standard communications software or an equivalent process. If downloading existing firmware from the modem, using an industry standard communications software or equivalent, put the host PC in XMODEM receive mode.

8.The messages described in Table 5-1 may occur during the uploading process:

	Table 5-1. Upload Messages
Message	Description
Device not supported	Displayed if the FLM used does not support the flash
	memory that is installed on the board.
Wrong S37 format	Displayed if the modem firmware being uploaded is not in
	Motorola S3 format.
Record error	Displayed if there is an error while either uploading or
	downloading. If this occurs, the transfer should be aborted,
	and the user should restart at step .5
Download abort	Displayed if the transfer is aborted before it is finished. If this
	occurs, the user should restart at step 5.
Erase fail	Displayed if the FLM is unable to erase the flash memory. If
	this occurs, the user should restart at step 5.
Download error, Re-	Displayed if there was an error when uploading or
Load	downloading. If this occurs, the user should restart at step 5.
Error, No H/W flow ctl	Displayed if RTS-CTS flow control is not set. If this occurs,
	the user should restart at step 3.
DTE timeout	Displayed if the DTE has stopped the XMODEM transfer
	process before it is finished. If this occurs, the user should
	restart at step 5.
Code doesn’t match	Displayed if the user is attempting to upload a firmware that
Hardware	either not the same model (parallel, serial, etc.), crystal
	frequency, or size (1Mbit, 2Mbit, etc.) as the firmware that is
	currently on the board. If this occurs, the FLM will abort and
	not allow the user to continue.
Device successfully	Displayed by the FLM at the completion of a successful
Programmed	upload or download then the modem will do a cold start.

The uploader and downloader flash load modules (FLM) have several built in safety mechanisms to reduce the risk of a failed flash upload/download. The FLM will not allow a user to upload a firmware of different model (serial, parallel, etc.) or crystal speed than what is currently in the flash memory. Also, it will not allow the user to upload a firmware that is larger in size than the flash memory itself (e.g., a 2Mbit firmware onto a 1Mbit flash memory). It will, however, allow the user to upload a firmware that is smaller in size than the flash memory, and it will program the firmware with the appropriate offset in order for the firmware to function properly. In the instance that there is a failure during the download or upload process, the modem will be in a “flash rescue mode”. In this mode, the modem will respond “OK” to all AT commands, but will only take action on the AT** command, so a new attempt to upload or download can be initiated. When the modem is in the “flash rescue mode” it will only be able to respond to AT commands if the DTE rate has not been changed since the last AT** command was successfully issued, even if the modem is powered off and on.

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 35