There is a line
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#define ASYNC_OUT
Please try to comment it and rebuild library and application and run this way. Let me know the result.
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#define ASYNC_OUT
What signals are you looking at?I see the changing of polarity & phase on oscilloscope, but I did't see the data signal.
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result = GPIO_read(...);
input14 = (result >> 14) & 0x01;