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/*         The upgrade SDK tool discription		             */
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This folder has three files, Upgrade SDK Tool.exe, System.bin, and AP.bin.
Please don't modify the file "System.bin".
  You can change the "AP.bin" for your application build by realview, but the
file name must be "AP.bin" for our download program.

  When everything is ready, first, you have to make PT-20/PT-20B in 
Force Mode(Power off, then press 1+3+PW), and connect to PC, then you can 
double click "Upgrade SDK tool.exe" and start download.

This download is only for USB download.