Communication issues, data full of zeroes, and strange GUI behavior are all symptoms of a bus stuck low timing issue, where SCL or SDA can be stuck at ground. This is usually due to faulty or confused I²C devices. A stuck device prevents other devices on the bus from communicating until it releases high. A host must manually troubleshoot a bus stuck low, which can result in a costly system reset. A simpler fix would be to use Analog Devices bus buffers with selectable stuck bus protection, where the SDA and SCL outputs are continuously monitored for a low state of more than 30ms. If this occurs, the input-to-output connections for both I²C signals are broken. This prevents further communication with the stuck device and the bus buffer generates up to 16 clock pulses on the SCL_OUT pin in an attempt to free the card-side stuck bus. If the bus unsticks or the 16 clock pulses are completed, a stop bit is generated to clear the bus for further communications. The input-to-output I²C connections are reconnected only when the bus is idle.