Multi-Tech MT800SWM Socket Wireless Wi-Fi module.

CONTENTS
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   - Firmware Upgrade
   - Revision History
   - Technical Support
   - Copyrights and Trademarks


Firmware Upgrade
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How to upgrade firmware using Windows Hyperterminal
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1) bring up Windows hyperterminal 
2) power on the module and type d right away within 3 seconds
3) start xmodem upload and select the MT800SWM firmware bin file.  The upgrade will take few minutes to complete.
4) after upgrade is complete, power off and on the module and check the firmware version to make sure the upgrade is successful.



Revision History
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Firmware version 1.21, Dated August 18, 2007
--------------------------------------------

Bug Fixes:
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- Fixed PING problem. The number of PING requests is same as configured by user by giving AT#PINGNUM command. 
- Fixed PING problem when ping number AT#PINGNUM is set to 255.
- Fixed PING to public IP addresses timeout problem.
- Put in more error handlers for SMTP/FTP/POP3 to work with different servers. 
- Fixed SMTP Sender Address, CC Addresses, Recipient Addresses, Message body to allow maximum of 120 characters. 
- Fixed Password fields for SMTP/FTP/POP3 to allow maximum of 64 characters. 
- Fixed DHCP client when it is enabled and AT command is issued to set Static IP address it returns ERROR. 
- Fixed DHCP client when it is disabled and AT command is issued to Release (#IPRELEASE) and Renew (#IPRENEW) IP Address, it returns ERROR. 
- Fixed DHCP Client so it doesnt display/prints renewed IP Address on serial terminal when TCP Connection is active. 
- Fixed When WEP Key Index value is set to value other than 1 to 4, it returns ERROR. 
- Fixed When AT#BOOTMSG=0, it does not print any extra character on serial port. 
- Fixed DNS Client source changed to resolve the problem of sending malformed DNS Query packet. 
- Fixed UDP Client checks for validity of IP Address before trying to connect. If IP Address is invalid, it returns ERROR. 
- Fixed Module lock up when AP is switched off, problem is resolved by adding new roaming AT Command.
- Fixed UDP data transfer in WEP mode problem. It is successfully able to transmit UDP data in WEP64 and WEP128 mode. 
- Fixed DHCP corruption problem. The DHCP packets were getting corrupted earlier when firmware upgrade was done from 1.10 to release 1.18.
- Improved ad-hoc mode transfer rate between two socket modules.
- Fixed TCP when both #AUTOCONNECT and #AUTOLISTEN are enabled, and the module (client) fails to connect with the TCP server, any incoming connections to the module were getting rejected.
- Added handlers in FTP client to work with Microsoft FTP Server. 
- Added WEP Key Index Feature. To set Key Index issue following command
AT#WEPKEYID=<Value>
Allowed Values are 1,2,3,4

New AT commands added:
----------------------
AT#WLANDOZE
- To change from Power Save OFF mode Power Save ON.

AT#WLANACTIVATE
- To change from Power Save ON mode to Power Save OFF. 

AT#WLANASSOCINFO
- To find the channel and MAC Address of AP after it is connected.

AT#WLANROAM=<1 (Enable)/0 (Disable)>
- If AT#WLANROAM=Disable, when AP is switched off, link will be lost but the 
module will not try to roam and AT Command can be issued.

If AT#WLANROAM=Enable, when AP is switched off, the module will try to roam 
and re-connect to AP. AT command can not be issued when trying to roam. To 
be able to enter AT Commands again, user will have to issue escape sequence 
on serial terminal.



Firmware version 1.10, Dated February 27, 2007
----------------------------------------------

Bug fixes:
----------
- Secondary DNS Server feature is implemented. If the name is not resolved by the primary DNS server, the module will try to resolve through secondary DNS server. 
- By Default HTTP is disable. 
- WLAN Link and Activity LED will work. 
- Heartbeat LED will glow as it is for command AT#WLANCONNECT 
- All boot-up messages will come only in user configured baud rate. 
- Firmware Download through XModem will work for user configured baud rate and not through default baud rate as was done earlier. 
- On Power up, RI, DCD and DSR signals are OFF (high) by default. 
- Host device parameter list file is written by the default firmware for demonstration of host device capability feature. 
- DCD signal is used only by TCP connection and not by WLAN LINK. 
- The lock up problem for continuous send/receive e-mails using SMTP and POP3 is resolved. 
- The lock up problem for continuous FTP transfer is resolved. 
- AT#VALL shows values of all parameters that can be configured. 
- After module connected to AP, the module appears to lock up if the AP is switched OFF. The module tries to roam in background. This roam feature is needed in cases where AP sends DE-AUTH packet if the STA remains idle for particular time. Due to roam capability the STA gets re-associated with the AP. 
To exit from roam and to come to AT command mode, enter the escape sequence on the serial terminal. 
For the functionality to work, the escape sequence feature should be enabled.  i.e. AT#CONTERMINATE=1 

- ATS2 setting is saved after cycle power. 
- DE AUTH packets from AP is handled and the module re-associates with AP when DE AUTH is received. 
- For SMTP, FTP, POP3, if the user gives less size of data then already specified then module will abort the session after specified time out. 
- MAC HANG problem after giving WLANCONNECT command for 5-6 times is resolved. 

New AT commands added:
----------------------
AT#BOOTMSG=<Value>
Value: 0: Disable all boot messages
	1: Enable all boot messasges. 
Enable/Disable boot up message. 

AT#TCPAUTOLISTEN=<Value>
Value: 0: Disable auto listen on boot-up
	1: Enable auto listen on boot-up
Start listening on boot up automatically. The module listens on the port, which is configured in port field of TCP parameters. 


TECHNICAL SUPPORT
-----------------
For technical support, you may contact your authorized Multi-Tech Systems distributor, dealer or the following Multi-Tech Systems branch offices.

Country              By Email                       By Phone
France:           support@multitech.fr          (33) 1-64 61 09 81
U.K.:             support@multitech.co.uk       (44) 118 959 7774
U.S. & Canada:    support@multitech.com         (800) 972-2439
Rest of World:    support@multitech.com         (763) 717-5863

Internet Address: http://www.multitech.com
FTP Site: ftp://ftp.multitech.com


COPYRIGHTS AND TRADEMARKS
-------------------------
All documents and software provided herewith are Copyright (c) 2004 Multi-Tech Systems. All rights reserved.
MS, Windows, Windows 95, Windows NT are tradenames of Microsoft Corporation.
Other trademarks or tradenames used herein are properties of the respective owners.
