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    MiniOS7 for ET-7000/PET-7000 Series
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Ver. 2.4.0 (Nov. 24, 2016)
1. Compatible with new hardware update 

Ver. 2.3.0 (Jun. 03, 2014)
1. Fixed the issue that the reboot is not performed automatically 
   when upgrading the OS image from an earlier version to 2.2.15

Ver. 2.2.15 (Jul. 25, 2013)
1. Added support for new Flash chip

Ver. 2.2.10 (Jun. 04, 2009)
1. Ameliorate the UDP connection for ET-7060

Ver. 2.2.9 (May 12, 2009)
1. Ameliorate the UDP connection for ET-7060

Ver. 2.2.8 (Jul. 30, 2008)
1. Modify PIO 24
2. disable clock output A/B

[2008/3/18]
Fix:
1. Argv[0] will lose 2 bytes, while the file length is 12bytes.
   "xxxxxxxx.exe" becomes to "xxxxxxxx.e" 
2. OS receives nothing while the last line of autoexec.bat has no terminal 
   character of "CR+LF" 
3. The UDP boardcast cannot find the module which IP address is FF.FF.FF.FF
   Changed to 
   UDP OS will set IP to 192.168.0.1 automatically, while IP address is FF.FF.FF.FF
   set Mask to 255.255.255.0 automatically, while Mask address is FF.FF.FF.FF    
   set Gateway to 192.168.0.254 automatically, while Gateway address is FF.FF.FF.FF