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  • I2C_ReadRandom

    The function I2C_ReadRandom reads one byte from a given i2c-address.

    int I2C_ReadRandom( UCHAR SlaveAddress, UCHAR SubAddress ); int i2c_RandomByteRead( UCHAR SlaveAddress, UCHAR SubAddress );

    Parameters

    SlaveAddress SlaveAddress of i2c-device.

    SubAddress SubAddress of i2c-device.

    Return Values

    If the function succeeds, the return value is the byte read from the i2c-device.

    If the function fails, the return value is -1.

    Remarks

    Issues following sequence:

    • Lock

    • Start

    • SlaveAddress with write-bit

    • SubAddress

    • SlaveAddress with read-bit

    • Read one byte

    • Stop

    • Unlock

    This function calls I2C_Lock and I2C_Unlock to prevent multiple accesses to the i2c-bus. Don't lock access to i2c-bus prior to using this function!!

    Requirements

    OS Versions: Windows CE 4.2 and later.
    Header: drvlib_app.h
    Link Library: drvlib_app.lib

    See Also

    I2C_WriteRandom