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How to change the duration of detect pulse from ST25R3920 when in LPCD mode

CCClay
Visitor

I am trying to use the low power detection mode now, I want to try to use the phase detection function to implement a low power detection card, the 3920B can configure the interval time between each detection pulse, but Apple has no control over the pulse width of the detection pulse (pulse duration time) requirement, I would like to know how to modify the duration of the detection pulse.

This question is urgent. Who can help answer it in time? Thank you!

 

This post has been translated from Chinese to comply with the ST Community guidelines.

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