I finally downloaded the firmware level application notes for Auto-Focusing OV3640 CMOS camera module. And also I found some source codes for firmware level (Auto-focus). That means we now control VCM (Voice Coil Motor) in OV3640 module. In our module used the embedded auto-focus solution.
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In side of OV3640 CMOS Camera Module |
full size
The following links have app-notes and sources:
link