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STM32L-discovery touch sensing

samuel239955_st
Associate II
Posted on April 03, 2012 at 09:23

We bought STM32L-Discovery board; there are no documents to describe how the touch sensing function works, so it is very difficult for us to use this function in our application.

In AN3413,

page10 mention �PA6, PA7, PC4, PC5, PB0, PB1 are for touch sensor�, but how it works?

 

PB0 and PB1 is one pair, PB0 toggling pin and PB1 counting the pulse?

How to design the electrode? I try use scope to view the signal, but it lockup

 

#stm32l-discovery-touch-sensing
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