HISTORY.TXT for OB90A64M1
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V_20190528: 
    1. Include CMSIS 5.4.0.
    2. Added QEI sample code.
    3. Fixed fmc sample code.
    4. Fixed global variable not work problem. (using volatile)

V_20190307: 
    1. Disable the pre-fetch related bits.(In sytem_OB90A64M1.c)
    