8 Replies Latest reply on Jul 3, 2018 8:33 PM by lihac_2539211

    Serious problems about CY8C9560A-24AXI

      Hey, Cypress ,

       

      I met a serious problem about  the chip CY8C9560A-24AXI ,

      When I tried to access the CY8C9560A-24AXI through my FPGA , The I2C  clock signal was really bad.

      As below,

      微信图片_20180703095749.jpg

       

       

      I powered this chip with 3.3V , and also pulled  the SCL/SDA up to 3.3V with 10Kohm   resistors.

      But when I tested the signal via oscilloscope, some of the SCL cycles couldn't reach 3.3V .

      So ,Why?

       

       

      Here is my schematic.

      捕获.PNG

       

       

      I need your help , I am looking forward to hear from you as soon as possible.

       

      Best wishes!

       

       

      Angelic Lea