SSC_I2C_STOPG
st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
i2c = SSC_I2C_STOPG | SSC_I2C_REPSTRTG;