/* Set 7bit I2C address of the device you wish to communicate with.  */
void i2c_set_address(uint32_t i2c, uint8_t addr)
/* Set 7bit I2C address of the device you wish to communicate with.  */
void i2c_set_address(uint32_t i2c, uint8_t addr)
{
    I2C_ADDRESS(i2c) = addr;
}