0 Replies Latest reply on Jun 30, 2013 7:45 PM by carl_miao

    Please help me! AMD/ATI i2c(DDCCI) error! TKS!


      I use atipdl(atipdlxx.dll) for i2c communication , But  always failed !!!

      ATIDL_WriteAndReadI2C´╝łULONG, stATI_I2C *);
      typedef struct tagATI_I2C
      ULONG ulSize; // size of stATI_I2C
      ULONG ulLine; // Numerical value representing hardware I2C
      ULONG ulAddress; // The 7-bit I2C slave device address
      ULONG ulOffset; // The offset of the data from the address
      ULONG ulAction; // Read from or write to slave device
      ULONG ulSpeed; // I2C clock speed in kHz
      ULONG ulDataSize; // A numerical value representing the number of bytes to be sent or receive on the I2C bus
      PUCHAR pucData; // Address of the unsigned characters which are to be sent or receive on the I2C bus
      } stATI_I2C;

      Can you provide one sample?


      graphics card :HD7750

      system: xp 32

      programming language :VS2010(C++)