U2C_SetClockSynch()

U2C_RESULT U2C_SetClockSynch(
      HANDLE hDevice,
      BOOL Enable
);

The U2C_SetClockSynch() function enables I2C bus clock synchronization.

Clock synchronization (clock stretching) is used in situations where an I2C slave is not able to co-operate with the clock speed provided by the U2C-12 I2C master and needs to slow down the I2C bus. I2C slave holds down the SCL line low and in this way signals the I2C master about a wait state. If I2C bus clock synchronization is enabled, U2C-12 device will wait until I2C slave device releases the SCL line.

	Warning
	I 2 C bus clock synchronization (clock stretching) is implemented for I 2 C bus frequencies up to 100kHz. See U2C_SetI2cFreq() to learn how to change I 2 C bus frequency.

Return values:

U2C_SUCCESS

The I2C bus clock synchronization value was successfully set.

U2C_HARDWARE_NOT_FOUND

U2C-12 device referenced by hDevice handle was not found.