4 Replies Latest reply on Jun 10, 2018 6:03 AM by rzzh

    PSoc4 Capsense raw count is not full scale

    taemyung.stanford_3430236

      Hi,

      I am playing with the manual tuning of the Capsense with PSoc 4000s (CY8CKIT-145)

      When I play with the compensation IDAC value, I found that the capacitive sensor raw count does not go down to 0. I could not make the raw count less than ~37% of the full scale (For example, the lower bound was 387 count with 10 bit resolution (1023) and the lower bound was 3075 with 13 bit mode (8191).

      I really would like to utilize the full scale from 0 to maximum count from the resoultion.

       

      Could anyone explain why I got such lower bound issue and how to solve it?

       

      Thanks.