4.4 Avoiding Deadlocks

Setting up a Bus Timeout is the best way to avoid deadlocks on an I²C bus. If a deadlock does occur for whatever reason, the MCU can respond by resetting its I²C controller and/or generating an interrupt. The interrupt could be used to reset devices on the bus to resolve the error. Some MCUs have built-in Bus Timeout features in the I²C hardware, while others will emulate it with either a dedicated hardware timer or a software-defined timer.

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