Pakistan
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I2c In C# Not Reading Values

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I have mpu-6050 6dof imu. I want to read the value of who_am_i register with register number 0x75. The register returns address 0x68. But I am getting 255. The device address is 0x68 as well. Code is as follows:

byte[] ret = ezB_Connect1.EZB.I2C.Read(I2C.ReadArgsEnum.Auto,0x75,1);

here is the register description for the device:RM-MPU-6000A.pdf

I checked my imu with arduino and it works fine. So, any help here?


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#9  

Hi DJ sures It's OK, that works fine when i call the init function before the get data. Thank you have a good week end. Bye Christophe:):)

#10  

Hi DJ Sures My projet works fine but I have just a remark to say. I think that you have reversed :

  • the value GyroX with the AccelX
  • the value GyroY with the AccelY Thank you again.
    Bye Christophe
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Synthiam
#11  

The data collected is correct, they are not reversed.


    public Classes.MPU6050Cls GetData() {

      _ezb.I2C.Write(0x68, new byte[] { 0x3B });

      byte [] everything = _ezb.I2C.Read(0x68, 14).Reverse().ToArray();

      Classes.MPU6050Cls cls = new Classes.MPU6050Cls();

      cls.AccelX = BitConverter.ToInt16(everything, 12);
      cls.AccelY = BitConverter.ToInt16(everything, 10);
      cls.AccelZ = BitConverter.ToInt16(everything, 8);
      cls.TmpC = (BitConverter.ToUInt16(everything, 6) / 340) + 35;
      cls.GyroX = BitConverter.ToInt16(everything, 4);
      cls.GyroY = BitConverter.ToInt16(everything, 2);
      cls.GyroZ = BitConverter.ToInt16(everything, 0);

      return cls;
    }
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