CY8C20142 i2c problem

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CY8C20142 i2c problem

Postby leooto » Wed Jan 25, 2012 6:32 am

Hello, I have a capacitive controller (cy8c20142) but i can not communicate to it. In my oscilloscope i can see the start, the adress, but it sends a NACK response (high SDA and LOW SCL). I have tried with int 42 (0101010-0) and hex 42 (1000010-0) but it keeps sending NACK. What should i do? Am i doing something wrong?

I have 10K pull up resistors, the frecuency of SCL is around 40 KHz and i am with 3,58 V...

THANKS!!!
leooto
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