3 Replies Latest reply on Jul 12, 2012 2:49 AM by user_1377889

    I2C bus CY_U3P_ERROR_LOST_ARBITRATION,

    allen.peng

      Hi,

         

      I use the I2C bus to write the image sensor device, but sometimes the returned message of  CyU3PI2cTransmitBytes() is CY_U3P_ERROR_LOST_ARBITRATION. I have checked the I2C waveform with logic analyzer and the waveform looks good. I also checked the data of sensor register and it is correct.

         

      Could anyone tell me what will cause this error ?

         

      Thank you  in advance.

         

      Note:

         

      Error Rate: 2~5 times of total 255 commands

         

      I2C bit rate: occur in any bit rate.

         

      Device amount: 1