2 Replies Latest reply on May 23, 2014 8:29 AM by xuetao.yan

    I can't access the CY22150 IIC interface by cy68013

    xuetao.yan

       Hi:

         

            I use the CY22150 to provide clocks. The IIC bus master is cy68013, the slaver is cy22150. I use the 

         

      function EZUSB_WriteI2C(ChipID,length,EepromBuf), which is from lib to write data to IIC bus, but the cy22150 didn't send back ACK, after the 8bits ChipID finished.

         

            EepromBuf[0] = 0X09H

         

            EepromBuf[1] = 0X00H

         

            The slaver device address is 0x69H, so  EZUSB_WriteI2C(0x69,2,EepromBuf) .

         

            The attachments are schematic.